diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS new file mode 100644 index 0000000..6f64b5a --- /dev/null +++ b/.github/CODEOWNERS @@ -0,0 +1,25 @@ +# Use this file to define individuals or teams that are responsible for code in a repository. +# Read more: +# +# Order is important: the last matching pattern has the highest precedence + +# These owners will be the default owners for everything +* @cloudposse/engineering @cloudposse/contributors + +# Cloud Posse must review any changes to Makefiles +**/Makefile @cloudposse/engineering +**/Makefile.* @cloudposse/engineering + +# Cloud Posse must review any changes to GitHub actions +.github/* @cloudposse/engineering + +# Cloud Posse must review any changes to standard context definition, +# but some changes can be rubber-stamped. +**/*.tf @cloudposse/engineering @cloudposse/contributors @cloudposse/approvers +README.yaml @cloudposse/engineering @cloudposse/contributors @cloudposse/approvers +README.md @cloudposse/engineering @cloudposse/contributors @cloudposse/approvers +docs/*.md @cloudposse/engineering @cloudposse/contributors @cloudposse/approvers + +# Cloud Posse Admins must review all changes to CODEOWNERS or the mergify configuration +.github/mergify.yml @cloudposse/admins +.github/CODEOWNERS @cloudposse/admins diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md new file mode 100644 index 0000000..f3df96b --- /dev/null +++ b/.github/ISSUE_TEMPLATE/bug_report.md @@ -0,0 +1,37 @@ +--- +name: Bug report +about: Create a report to help us improve +title: '' +labels: 'bug' +assignees: '' + +--- + +Found a bug? Maybe our [Slack Community](https://slack.cloudposse.com) can help. + +[![Slack Community](https://slack.cloudposse.com/badge.svg)](https://slack.cloudposse.com) + +## Describe the Bug +A clear and concise description of what the bug is. + +## Expected Behavior +A clear and concise description of what you expected to happen. + +## Steps to Reproduce +Steps to reproduce the behavior: +1. Go to '...' +2. Run '....' +3. Enter '....' +4. See error + +## Screenshots +If applicable, add screenshots or logs to help explain your problem. + +## Environment (please complete the following information): + +Anything that will help us triage the bug will help. Here are some ideas: + - OS: [e.g. Linux, OSX, WSL, etc] + - Version [e.g. 10.15] + +## Additional Context +Add any other context about the problem here. \ No newline at end of file diff --git a/.github/ISSUE_TEMPLATE/bug_report.yml b/.github/ISSUE_TEMPLATE/bug_report.yml new file mode 100644 index 0000000..94d3246 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/bug_report.yml @@ -0,0 +1,72 @@ +--- +name: Bug report +description: Create a report to help us improve +labels: ["bug"] +assignees: [""] +body: + - type: markdown + attributes: + value: | + Found a bug? + + Please checkout our [Slack Community](https://slack.cloudposse.com) + or visit our [Slack Archive](https://archive.sweetops.com/). + + [![Slack Community](https://slack.cloudposse.com/badge.svg)](https://slack.cloudposse.com) + + - type: textarea + id: concise-description + attributes: + label: Describe the Bug + description: A clear and concise description of what the bug is. + placeholder: What is the bug about? + validations: + required: true + + - type: textarea + id: expected + attributes: + label: Expected Behavior + description: A clear and concise description of what you expected. + placeholder: What happened? + validations: + required: true + + - type: textarea + id: reproduction-steps + attributes: + label: Steps to Reproduce + description: Steps to reproduce the behavior. + placeholder: How do we reproduce it? + validations: + required: true + + - type: textarea + id: screenshots + attributes: + label: Screenshots + description: If applicable, add screenshots or logs to help explain. + validations: + required: false + + - type: textarea + id: environment + attributes: + label: Environment + description: Anything that will help us triage the bug. + placeholder: | + - OS: [e.g. Linux, OSX, WSL, etc] + - Version [e.g. 10.15] + - Module version + - Terraform version + validations: + required: false + + - type: textarea + id: additional + attributes: + label: Additional Context + description: | + Add any other context about the problem here. + validations: + required: false diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml new file mode 100644 index 0000000..76ae6d6 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/config.yml @@ -0,0 +1,18 @@ +blank_issues_enabled: false + +contact_links: + + - name: Community Slack Team + url: https://cloudposse.com/slack/ + about: |- + Please ask and answer questions here. + + - name: Office Hours + url: https://cloudposse.com/office-hours/ + about: |- + Join us every Wednesday for FREE Office Hours (lunch & learn). + + - name: DevOps Accelerator Program + url: https://cloudposse.com/accelerate/ + about: |- + Own your infrastructure in record time. We build it. You drive it. diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md new file mode 100644 index 0000000..39a8686 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/feature_request.md @@ -0,0 +1,36 @@ +--- +name: Feature Request +about: Suggest an idea for this project +title: '' +labels: 'feature request' +assignees: '' + +--- + +Have a question? Please checkout our [Slack Community](https://slack.cloudposse.com) or visit our [Slack Archive](https://archive.sweetops.com/). + +[![Slack Community](https://slack.cloudposse.com/badge.svg)](https://slack.cloudposse.com) + +## Describe the Feature + +A clear and concise description of what the bug is. + +## Expected Behavior + +A clear and concise description of what you expected to happen. + +## Use Case + +Is your feature request related to a problem/challenge you are trying to solve? Please provide some additional context of why this feature or capability will be valuable. + +## Describe Ideal Solution + +A clear and concise description of what you want to happen. If you don't know, that's okay. + +## Alternatives Considered + +Explain what alternative solutions or features you've considered. + +## Additional Context + +Add any other context or screenshots about the feature request here. diff --git a/.github/ISSUE_TEMPLATE/feature_request.yml b/.github/ISSUE_TEMPLATE/feature_request.yml new file mode 100644 index 0000000..7b86672 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/feature_request.yml @@ -0,0 +1,71 @@ +--- +name: Feature Request +description: Suggest an idea for this project +labels: ["feature request"] +assignees: [""] +body: + - type: markdown + attributes: + value: | + Have a question? + + Please checkout our [Slack Community](https://slack.cloudposse.com) + or visit our [Slack Archive](https://archive.sweetops.com/). + + [![Slack Community](https://slack.cloudposse.com/badge.svg)](https://slack.cloudposse.com) + + - type: textarea + id: concise-description + attributes: + label: Describe the Feature + description: A clear and concise description of what the feature is. + placeholder: What is the feature about? + validations: + required: true + + - type: textarea + id: expected + attributes: + label: Expected Behavior + description: A clear and concise description of what you expected. + placeholder: What happened? + validations: + required: true + + - type: textarea + id: use-case + attributes: + label: Use Case + description: | + Is your feature request related to a problem/challenge you are trying + to solve? + + Please provide some additional context of why this feature or + capability will be valuable. + validations: + required: true + + - type: textarea + id: ideal-solution + attributes: + label: Describe Ideal Solution + description: A clear and concise description of what you want to happen. + validations: + required: true + + - type: textarea + id: alternatives-considered + attributes: + label: Alternatives Considered + description: Explain alternative solutions or features considered. + validations: + required: false + + - type: textarea + id: additional + attributes: + label: Additional Context + description: | + Add any other context about the problem here. + validations: + required: false diff --git a/.github/ISSUE_TEMPLATE/question.md b/.github/ISSUE_TEMPLATE/question.md new file mode 100644 index 0000000..e69de29 diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md new file mode 100644 index 0000000..8944933 --- /dev/null +++ b/.github/PULL_REQUEST_TEMPLATE.md @@ -0,0 +1,21 @@ +## what + + + +## why + + + +## references + + diff --git a/.github/banner.png b/.github/banner.png new file mode 100644 index 0000000..e72d21a Binary files /dev/null and b/.github/banner.png differ diff --git a/.github/mergify.yml b/.github/mergify.yml new file mode 100644 index 0000000..526045d --- /dev/null +++ b/.github/mergify.yml @@ -0,0 +1 @@ +extends: .github diff --git a/.github/renovate.json b/.github/renovate.json new file mode 100644 index 0000000..b61ed24 --- /dev/null +++ b/.github/renovate.json @@ -0,0 +1,13 @@ +{ + "extends": [ + "config:base", + ":preserveSemverRanges" + ], + "baseBranches": ["main", "master", "/^release\\/v\\d{1,2}$/"], + "labels": ["auto-update"], + "dependencyDashboardAutoclose": true, + "enabledManagers": ["terraform"], + "terraform": { + "ignorePaths": ["**/context.tf", "examples/**"] + } +} diff --git a/.github/settings.yml b/.github/settings.yml new file mode 100644 index 0000000..b85e9cf --- /dev/null +++ b/.github/settings.yml @@ -0,0 +1,11 @@ +# Upstream changes from _extends are only recognized when modifications are made to this file in the default branch. +_extends: .github +repository: + name: terraform-aws-ec2-instance-group + description: Terraform Module for provisioning multiple general purpose EC2 hosts for stateful applications. + homepage: https://cloudposse.com/accelerate + topics: terraform, terraform-module, instance-group, stateful-set, cluster, ec2, instances, aws, hcl2 + + + + diff --git a/.github/workflows/branch.yml b/.github/workflows/branch.yml new file mode 100644 index 0000000..fd64cd8 --- /dev/null +++ b/.github/workflows/branch.yml @@ -0,0 +1,25 @@ +--- +name: Branch +on: + pull_request: + branches: + - main + - release/** + types: [opened, synchronize, reopened, labeled, unlabeled] + push: + branches: + - main + - release/v* + paths-ignore: + - '.github/**' + - 'docs/**' + - 'examples/**' + - 'test/**' + - 'README.md' + +permissions: {} + +jobs: + terraform-module: + uses: cloudposse/.github/.github/workflows/shared-terraform-module.yml@main + secrets: inherit diff --git a/.github/workflows/chatops.yml b/.github/workflows/chatops.yml new file mode 100644 index 0000000..793a7a6 --- /dev/null +++ b/.github/workflows/chatops.yml @@ -0,0 +1,17 @@ +--- +name: chatops +on: + issue_comment: + types: [created] + +permissions: + pull-requests: write + id-token: write + contents: write + statuses: write + +jobs: + test: + uses: cloudposse/.github/.github/workflows/shared-terraform-chatops.yml@main + if: ${{ github.event.issue.pull_request && contains(github.event.comment.body, '/terratest') }} + secrets: inherit diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml new file mode 100644 index 0000000..dc8a750 --- /dev/null +++ b/.github/workflows/release.yml @@ -0,0 +1,16 @@ +--- +name: release +on: + release: + types: + - published + +permissions: + id-token: write + contents: write + pull-requests: write + +jobs: + terraform-module: + uses: cloudposse/.github/.github/workflows/shared-release-branches.yml@main + secrets: inherit diff --git a/.github/workflows/scheduled.yml b/.github/workflows/scheduled.yml new file mode 100644 index 0000000..a79e949 --- /dev/null +++ b/.github/workflows/scheduled.yml @@ -0,0 +1,16 @@ +--- +name: scheduled +on: + workflow_dispatch: { } # Allows manually trigger this workflow + schedule: + - cron: "0 3 * * *" + +permissions: + pull-requests: write + id-token: write + contents: write + +jobs: + scheduled: + uses: cloudposse/.github/.github/workflows/shared-terraform-scheduled.yml@main + secrets: inherit diff --git a/.gitignore b/.gitignore index a507c7b..99a463f 100644 --- a/.gitignore +++ b/.gitignore @@ -4,9 +4,10 @@ *.iml **/terraform.tfstate **/terraform.tfstate.backup -**/terraform.tfvars +**/.terraform.lock.hcl + **/*.pem **/*.pub .build-harness -build-harness \ No newline at end of file +build-harness diff --git a/.travis.yml b/.travis.yml deleted file mode 100644 index b7cf901..0000000 --- a/.travis.yml +++ /dev/null @@ -1,16 +0,0 @@ -addons: - apt: - packages: - - git - - make - - curl - -install: - - make init - -script: - - make terraform/install - - make terraform/get-plugins - - make terraform/get-modules - - make terraform/lint - - make terraform/validate \ No newline at end of file diff --git a/LICENSE b/LICENSE index 261eeb9..eb114f2 100644 --- a/LICENSE +++ b/LICENSE @@ -186,7 +186,7 @@ same "printed page" as the copyright notice for easier identification within third-party archives. - Copyright [yyyy] [name of copyright owner] + Copyright 2018-2019 Cloud Posse, LLC Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. diff --git a/README.md b/README.md index 3c4bc78..98f69a7 100644 --- a/README.md +++ b/README.md @@ -1,51 +1,56 @@ - -[![README Header][readme_header_img]][readme_header_link] -[![Cloud Posse][logo]](https://cpco.io/homepage) -# terraform-aws-ec2-instance-group [![Build Status](https://travis-ci.org/cloudposse/terraform-aws-ec2-instance-group.svg?branch=master)](https://travis-ci.org/cloudposse/terraform-aws-ec2-instance-group) [![Latest Release](https://img.shields.io/github/release/cloudposse/terraform-aws-ec2-instance-group.svg)](https://github.com/cloudposse/terraform-aws-ec2-instance-group/releases/latest) [![Slack Community](https://slack.cloudposse.com/badge.svg)](https://slack.cloudposse.com) + +Project Banner
+

+Latest ReleaseLast UpdatedSlack Community

+ + +Terraform Module for providing N general purpose EC2 hosts. +If you only need to provision a single EC2 instance, consider using the [terraform-aws-ec2-instance](https://github.com/cloudposse/terraform-aws-ec2-instance) module instead. +**IMPORTANT** This module by-design does not provision an AutoScaling group. It was designed to provision a discrete number of instances suitable for running stateful services such as databases (e.g. Kafka, Redis, etc). -We literally have [*hundreds of terraform modules*][terraform_modules] that are Open Source and well-maintained. Check them out! +Included features: +* Automatically create a Security Group +* Option to switch EIP attachment +* CloudWatch monitoring and automatic reboot if instance hangs +* Assume Role capability +> [!TIP] +> #### πŸ‘½ Use Atmos with Terraform +> Cloud Posse uses [`atmos`](https://atmos.tools) to easily orchestrate multiple environments using Terraform.
+> Works with [Github Actions](https://atmos.tools/integrations/github-actions/), [Atlantis](https://atmos.tools/integrations/atlantis), or [Spacelift](https://atmos.tools/integrations/spacelift). +> +>
+> Watch demo of using Atmos with Terraform +>
+> Example of running atmos to manage infrastructure from our Quick Start tutorial. +> @@ -53,11 +58,6 @@ We literally have [*hundreds of terraform modules*][terraform_modules] that are ## Usage - -**IMPORTANT:** The `master` branch is used in `source` just as an example. In your code, do not pin to `master` because there may be breaking changes between releases. -Instead pin to the release tag (e.g. `?ref=tags/x.y.z`) of one of our [latest releases](https://github.com/cloudposse/terraform-aws-ec2-instance-group/releases). - - Note: add `${var.ssh_key_pair}` private key to the `ssh agent`. Include this repository as a module in your existing terraform code. @@ -67,19 +67,20 @@ Include this repository as a module in your existing terraform code. ```hcl module "instance" { - source = "git::https://github.com/cloudposse/terraform-aws-ec2-instance-group.git?ref=master" - namespace = "cp" + source = "cloudposse/ec2-instance-group/aws" + # Cloud Posse recommends pinning every module to a specific version + # version = "x.x.x" + namespace = "eg" stage = "prod" name = "app" ami = "ami-a4dc46db" ami_owner = "099720109477" - ssh_key_pair = "${var.ssh_key_pair}" - instance_type = "${var.instance_type}" - vpc_id = "${var.vpc_id}" - security_groups = ["${var.security_groups}"] - subnet = "${var.subnet}" - - instance_count = "3" + ssh_key_pair = var.ssh_key_pair + instance_type = var.instance_type + vpc_id = var.vpc_id + security_groups = var.security_groups + subnet = var.subnet + instance_count = 3 } ``` @@ -87,22 +88,54 @@ module "instance" { ```hcl module "kafka_instance" { - source = "git::https://github.com/cloudposse/terraform-aws-ec2-instance-group.git?ref=master" - namespace = "cp" + source = "cloudposse/ec2-instance-group/aws" + # Cloud Posse recommends pinning every module to a specific version + # version = "x.x.x" + + namespace = "eg" stage = "prod" name = "app" ami = "ami-a4dc46db" ami_owner = "099720109477" - ssh_key_pair = "${var.ssh_key_pair}" - vpc_id = "${var.vpc_id}" - security_groups = ["${var.security_groups}"] - subnet = "${var.subnet}" - associate_public_ip_address = "true" - additional_ips_count = "1" - ebs_volume_count = "2" - allowed_ports = ["22", "80", "443"] - - instance_count = "3" + ssh_key_pair = var.ssh_key_pair + vpc_id = var.vpc_id + security_groups = var.security_groups + subnet = var.subnet + associate_public_ip_address = true + additional_ips_count = 1 + ebs_volume_count = 2 + instance_count = 3 + + security_group_rules = [ + { + type = "egress" + from_port = 0 + to_port = 65535 + protocol = "-1" + cidr_blocks = ["0.0.0.0/0"] + }, + { + type = "ingress" + from_port = 22 + to_port = 22 + protocol = "tcp" + cidr_blocks = ["0.0.0.0/0"] + }, + { + type = "ingress" + from_port = 80 + to_port = 80 + protocol = "tcp" + cidr_blocks = ["0.0.0.0/0"] + }, + { + type = "ingress" + from_port = 443 + to_port = 443 + protocol = "tcp" + cidr_blocks = ["0.0.0.0/0"] + } + ] } ``` @@ -116,21 +149,31 @@ This module depends on these modules: It is necessary to run `terraform get` or `terraform init` to download this module. Now reference the label when creating an instance (for example): + ```hcl resource "aws_ami_from_instance" "example" { - count = "${length(module.instance.*.id)}" - name = "terraform-example" - source_instance_id = "${element(module.instance.*.id, count.index)}" + count = length(module.instance.*.id) + name = "app" + source_instance_id = element(module.instance.*.id, count.index) } ``` +> [!IMPORTANT] +> In Cloud Posse's examples, we avoid pinning modules to specific versions to prevent discrepancies between the documentation +> and the latest released versions. However, for your own projects, we strongly advise pinning each module to the exact version +> you're using. This practice ensures the stability of your infrastructure. Additionally, we recommend implementing a systematic +> approach for updating versions to avoid unexpected changes. + + + + ## Makefile Targets -``` +```text Available targets: help Help screen @@ -139,91 +182,147 @@ Available targets: lint Lint terraform code ``` + + +## Requirements + +| Name | Version | +|------|---------| +| [terraform](#requirement\_terraform) | >= 1.0 | +| [aws](#requirement\_aws) | >= 2.0 | + +## Providers + +| Name | Version | +|------|---------| +| [aws](#provider\_aws) | >= 2.0 | + +## Modules + +| Name | Source | Version | +|------|--------|---------| +| [label](#module\_label) | cloudposse/label/null | 0.25.0 | +| [security\_group](#module\_security\_group) | cloudposse/security-group/aws | 2.2.0 | +| [ssh\_key\_pair](#module\_ssh\_key\_pair) | cloudposse/key-pair/aws | 0.19.0 | +| [this](#module\_this) | cloudposse/label/null | 0.25.0 | + +## Resources + +| Name | Type | +|------|------| +| [aws_cloudwatch_metric_alarm.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudwatch_metric_alarm) | resource | +| [aws_ebs_volume.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/ebs_volume) | resource | +| [aws_eip.additional](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/eip) | resource | +| [aws_eip.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/eip) | resource | +| [aws_iam_instance_profile.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_instance_profile) | resource | +| [aws_iam_role.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role) | resource | +| [aws_instance.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/instance) | resource | +| [aws_network_interface.additional](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/network_interface) | resource | +| [aws_network_interface_attachment.additional](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/network_interface_attachment) | resource | +| [aws_volume_attachment.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/volume_attachment) | resource | +| [aws_ami.info](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ami) | data source | +| [aws_caller_identity.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/caller_identity) | data source | +| [aws_iam_policy_document.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source | +| [aws_region.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/region) | data source | + ## Inputs | Name | Description | Type | Default | Required | -|------|-------------|:----:|:-----:|:-----:| -| additional_ips_count | Count of additional EIPs | string | `0` | no | -| allowed_ports | List of allowed ingress ports | list | `` | no | -| ami | The AMI to use for the instance. | string | - | yes | -| ami_owner | Owner of the given AMI | string | - | yes | -| applying_period | The period in seconds over which the specified statistic is applied | string | `60` | no | -| assign_eip_address | Assign an Elastic IP address to the instance | string | `true` | no | -| associate_public_ip_address | Associate a public IP address with the instance | string | `true` | no | -| attributes | Additional attributes (e.g. `policy` or `role`) | list | `` | no | -| availability_zone | Availability Zone the instance is launched in. If not set, will be launched in the first AZ of the region | string | `` | no | -| comparison_operator | The arithmetic operation to use when comparing the specified Statistic and Threshold. Possible values are: GreaterThanOrEqualToThreshold, GreaterThanThreshold, LessThanThreshold, LessThanOrEqualToThreshold. | string | `GreaterThanOrEqualToThreshold` | no | -| create_default_security_group | Create default Security Group with only Egress traffic allowed | string | `true` | no | -| default_alarm_action | - | string | `action/actions/AWS_EC2.InstanceId.Reboot/1.0` | no | -| delete_on_termination | Whether the volume should be destroyed on instance termination | string | `true` | no | -| delimiter | - | string | `-` | no | -| disable_api_termination | Enable EC2 Instance Termination Protection | string | `false` | no | -| ebs_device_names | Name of the EBS device to mount | list | `` | no | -| ebs_iops | Amount of provisioned IOPS. This must be set with a volume_type of io1 | string | `0` | no | -| ebs_optimized | Launched EC2 instance will be EBS-optimized | string | `false` | no | -| ebs_volume_count | Count of EBS volumes that will be attached to the instance | string | `0` | no | -| ebs_volume_size | Size of the EBS volume in gigabytes | string | `10` | no | -| ebs_volume_type | The type of EBS volume. Can be standard, gp2 or io1 | string | `gp2` | no | -| evaluation_periods | The number of periods over which data is compared to the specified threshold. | string | `5` | no | -| generate_ssh_key_pair | If true, create a new key pair and save the pem for it to the current working directory | string | `false` | no | -| instance_count | Count of ec2 instances to create | string | `1` | no | -| instance_enabled | Flag to control the instance creation. Set to false if it is necessary to skip instance creation | string | `true` | no | -| instance_type | The type of the instance | string | `t2.micro` | no | -| ipv6_address_count | Number of IPv6 addresses to associate with the primary network interface. Amazon EC2 chooses the IPv6 addresses from the range of your subnet | string | `0` | no | -| ipv6_addresses | List of IPv6 addresses from the range of the subnet to associate with the primary network interface | list | `` | no | -| metric_name | The name for the alarm's associated metric. Allowed values can be found in https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/ec2-metricscollected.html | string | `StatusCheckFailed_Instance` | no | -| metric_namespace | The namespace for the alarm's associated metric. Allowed values can be found in https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/aws-namespaces.html | string | `AWS/EC2` | no | -| metric_threshold | The value against which the specified statistic is compared | string | `1` | no | -| monitoring | Launched EC2 instance will have detailed monitoring enabled | string | `true` | no | -| name | Name (e.g. `bastion` or `db`) - required for `terraform-terraform-label` module | string | - | yes | -| namespace | Namespace (e.g. `cp` or `cloudposse`) - required for `terraform-terraform-label` module | string | - | yes | -| private_ips | Private IP address to associate with the instances in the VPC | list | `` | no | -| region | AWS Region the instance is launched in | string | `` | no | -| root_iops | Amount of provisioned IOPS. This must be set if root_volume_type is set to `io1` | string | `0` | no | -| root_volume_size | Size of the root volume in gigabytes | string | `10` | no | -| root_volume_type | Type of root volume. Can be standard, gp2 or io1 | string | `gp2` | no | -| security_groups | List of Security Group IDs allowed to connect to the instance | list | `` | no | -| source_dest_check | Controls if traffic is routed to the instance when the destination address does not match the instance. Used for NAT or VPNs | string | `true` | no | -| ssh_key_pair | SSH key pair to be provisioned on the instance | string | `` | no | -| ssh_key_pair_path | Path to where the generated key pairs will be created. Defaults to $${path.cwd} | string | `` | no | -| stage | Stage (e.g. `prod`, `dev`, `staging` - required for `terraform-terraform-label` module | string | - | yes | -| statistic_level | The statistic to apply to the alarm's associated metric. Allowed values are: SampleCount, Average, Sum, Minimum, Maximum | string | `Maximum` | no | -| subnet | VPC Subnet ID the instance is launched in | string | - | yes | -| tags | Additional tags | map | `` | no | -| user_data | Instance user data. Do not pass gzip-compressed data via this argument | string | `` | no | -| vpc_id | The ID of the VPC that the instance security group belongs to | string | - | yes | -| welcome_message | - | string | `` | no | +|------|-------------|------|---------|:--------:| +| [additional\_ips\_count](#input\_additional\_ips\_count) | Count of additional EIPs | `number` | `0` | no | +| [additional\_tag\_map](#input\_additional\_tag\_map) | Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`.
This is for some rare cases where resources want additional configuration of tags
and therefore take a list of maps with tag key, value, and additional configuration. | `map(string)` | `{}` | no | +| [ami](#input\_ami) | The AMI to use for the instance | `string` | n/a | yes | +| [ami\_owner](#input\_ami\_owner) | Owner of the given AMI | `string` | n/a | yes | +| [applying\_period](#input\_applying\_period) | The period in seconds over which the specified statistic is applied | `number` | `60` | no | +| [assign\_eip\_address](#input\_assign\_eip\_address) | Assign an Elastic IP address to the instance | `bool` | `true` | no | +| [associate\_public\_ip\_address](#input\_associate\_public\_ip\_address) | Associate a public IP address with the instance | `bool` | `false` | no | +| [attributes](#input\_attributes) | ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,
in the order they appear in the list. New attributes are appended to the
end of the list. The elements of the list are joined by the `delimiter`
and treated as a single ID element. | `list(string)` | `[]` | no | +| [availability\_zone](#input\_availability\_zone) | Availability Zone the instance is launched in. If not set, will be launched in the first AZ of the region | `string` | `""` | no | +| [comparison\_operator](#input\_comparison\_operator) | The arithmetic operation to use when comparing the specified Statistic and Threshold. Possible values are: GreaterThanOrEqualToThreshold, GreaterThanThreshold, LessThanThreshold, LessThanOrEqualToThreshold | `string` | `"GreaterThanOrEqualToThreshold"` | no | +| [context](#input\_context) | Single object for setting entire context at once.
See description of individual variables for details.
Leave string and numeric variables as `null` to use default value.
Individual variable settings (non-null) override settings in context object,
except for attributes, tags, and additional\_tag\_map, which are merged. | `any` | 
{
  "additional_tag_map": {},
  "attributes": [],
  "delimiter": null,
  "descriptor_formats": {},
  "enabled": true,
  "environment": null,
  "id_length_limit": null,
  "label_key_case": null,
  "label_order": [],
  "label_value_case": null,
  "labels_as_tags": [
    "unset"
  ],
  "name": null,
  "namespace": null,
  "regex_replace_chars": null,
  "stage": null,
  "tags": {},
  "tenant": null
}
| no | +| [default\_alarm\_action](#input\_default\_alarm\_action) | Default alarm action | `string` | `"action/actions/AWS_EC2.InstanceId.Reboot/1.0"` | no | +| [delete\_on\_termination](#input\_delete\_on\_termination) | Whether the volume should be destroyed on instance termination | `bool` | `true` | no | +| [delimiter](#input\_delimiter) | Delimiter to be used between ID elements.
Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no | +| [descriptor\_formats](#input\_descriptor\_formats) | Describe additional descriptors to be output in the `descriptors` output map.
Map of maps. Keys are names of descriptors. Values are maps of the form
`{
format = string
labels = list(string)
}`
(Type is `any` so the map values can later be enhanced to provide additional options.)
`format` is a Terraform format string to be passed to the `format()` function.
`labels` is a list of labels, in order, to pass to `format()` function.
Label values will be normalized before being passed to `format()` so they will be
identical to how they appear in `id`.
Default is `{}` (`descriptors` output will be empty). | `any` | `{}` | no | +| [disable\_api\_termination](#input\_disable\_api\_termination) | Enable EC2 Instance Termination Protection | `bool` | `false` | no | +| [ebs\_device\_names](#input\_ebs\_device\_names) | Name of the EBS device to mount | `list(string)` | 
[
  "/dev/xvdb",
  "/dev/xvdc",
  "/dev/xvdd",
  "/dev/xvde",
  "/dev/xvdf",
  "/dev/xvdg",
  "/dev/xvdh",
  "/dev/xvdi",
  "/dev/xvdj",
  "/dev/xvdk",
  "/dev/xvdl",
  "/dev/xvdm",
  "/dev/xvdn",
  "/dev/xvdo",
  "/dev/xvdp",
  "/dev/xvdq",
  "/dev/xvdr",
  "/dev/xvds",
  "/dev/xvdt",
  "/dev/xvdu",
  "/dev/xvdv",
  "/dev/xvdw",
  "/dev/xvdx",
  "/dev/xvdy",
  "/dev/xvdz"
]
| no | +| [ebs\_iops](#input\_ebs\_iops) | Amount of provisioned IOPS. This must be set with a volume\_type of io1 | `number` | `0` | no | +| [ebs\_optimized](#input\_ebs\_optimized) | Launched EC2 instance will be EBS-optimized | `bool` | `false` | no | +| [ebs\_volume\_count](#input\_ebs\_volume\_count) | Count of EBS volumes that will be attached to the instance | `number` | `0` | no | +| [ebs\_volume\_encrypted](#input\_ebs\_volume\_encrypted) | Size of the EBS volume in gigabytes | `bool` | `true` | no | +| [ebs\_volume\_size](#input\_ebs\_volume\_size) | Size of the EBS volume in gigabytes | `number` | `10` | no | +| [ebs\_volume\_type](#input\_ebs\_volume\_type) | The type of EBS volume. Can be standard, gp2 or io1 | `string` | `"gp2"` | no | +| [enabled](#input\_enabled) | Set to false to prevent the module from creating any resources | `bool` | `null` | no | +| [environment](#input\_environment) | ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT' | `string` | `null` | no | +| [evaluation\_periods](#input\_evaluation\_periods) | The number of periods over which data is compared to the specified threshold | `number` | `5` | no | +| [generate\_ssh\_key\_pair](#input\_generate\_ssh\_key\_pair) | If true, create a new key pair and save the pem for it to the current working directory | `bool` | `false` | no | +| [id\_length\_limit](#input\_id\_length\_limit) | Limit `id` to this many characters (minimum 6).
Set to `0` for unlimited length.
Set to `null` for keep the existing setting, which defaults to `0`.
Does not affect `id_full`. | `number` | `null` | no | +| [instance\_count](#input\_instance\_count) | Count of ec2 instances to create | `number` | `1` | no | +| [instance\_type](#input\_instance\_type) | The type of the instance | `string` | `"t2.micro"` | no | +| [ipv6\_address\_count](#input\_ipv6\_address\_count) | Number of IPv6 addresses to associate with the primary network interface. Amazon EC2 chooses the IPv6 addresses from the range of your subnet | `number` | `0` | no | +| [ipv6\_addresses](#input\_ipv6\_addresses) | List of IPv6 addresses from the range of the subnet to associate with the primary network interface | `list(string)` | `[]` | no | +| [kms\_key\_id](#input\_kms\_key\_id) | KMS key ID used to encrypt EBS volume. When specifying kms\_key\_id, ebs\_volume\_encrypted needs to be set to true | `string` | `null` | no | +| [label\_key\_case](#input\_label\_key\_case) | Controls the letter case of the `tags` keys (label names) for tags generated by this module.
Does not affect keys of tags passed in via the `tags` input.
Possible values: `lower`, `title`, `upper`.
Default value: `title`. | `string` | `null` | no | +| [label\_order](#input\_label\_order) | The order in which the labels (ID elements) appear in the `id`.
Defaults to ["namespace", "environment", "stage", "name", "attributes"].
You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present. | `list(string)` | `null` | no | +| [label\_value\_case](#input\_label\_value\_case) | Controls the letter case of ID elements (labels) as included in `id`,
set as tag values, and output by this module individually.
Does not affect values of tags passed in via the `tags` input.
Possible values: `lower`, `title`, `upper` and `none` (no transformation).
Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs.
Default value: `lower`. | `string` | `null` | no | +| [labels\_as\_tags](#input\_labels\_as\_tags) | Set of labels (ID elements) to include as tags in the `tags` output.
Default is to include all labels.
Tags with empty values will not be included in the `tags` output.
Set to `[]` to suppress all generated tags.
**Notes:**
The value of the `name` tag, if included, will be the `id`, not the `name`.
Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be
changed in later chained modules. Attempts to change it will be silently ignored. | `set(string)` | 
[
  "default"
]
| no | +| [metadata\_http\_endpoint\_enabled](#input\_metadata\_http\_endpoint\_enabled) | Whether the metadata service is available | `bool` | `true` | no | +| [metadata\_http\_tokens\_required](#input\_metadata\_http\_tokens\_required) | Whether or not the metadata service requires session tokens, also referred to as Instance Metadata Service Version 2. | `bool` | `true` | no | +| [metric\_name](#input\_metric\_name) | The name for the alarm's associated metric. Allowed values can be found in https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/ec2-metricscollected.html | `string` | `"StatusCheckFailed_Instance"` | no | +| [metric\_namespace](#input\_metric\_namespace) | The namespace for the alarm's associated metric. Allowed values can be found in https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/aws-namespaces.html | `string` | `"AWS/EC2"` | no | +| [metric\_threshold](#input\_metric\_threshold) | The value against which the specified statistic is compared | `number` | `1` | no | +| [monitoring](#input\_monitoring) | Launched EC2 instance will have detailed monitoring enabled | `bool` | `true` | no | +| [name](#input\_name) | ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.
This is the only ID element not also included as a `tag`.
The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input. | `string` | `null` | no | +| [namespace](#input\_namespace) | ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique | `string` | `null` | no | +| [permissions\_boundary\_arn](#input\_permissions\_boundary\_arn) | Policy ARN to attach to instance role as a permissions boundary | `string` | `""` | no | +| [private\_ips](#input\_private\_ips) | Private IP address to associate with the instances in the VPC | `list(string)` | `[]` | no | +| [regex\_replace\_chars](#input\_regex\_replace\_chars) | Terraform regular expression (regex) string.
Characters matching the regex will be removed from the ID elements.
If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. | `string` | `null` | no | +| [region](#input\_region) | AWS Region the instance is launched in | `string` | n/a | yes | +| [root\_block\_device\_encrypted](#input\_root\_block\_device\_encrypted) | Whether to encrypt the root block device | `bool` | `true` | no | +| [root\_iops](#input\_root\_iops) | Amount of provisioned IOPS. This must be set if root\_volume\_type is set to `io1` | `number` | `0` | no | +| [root\_volume\_size](#input\_root\_volume\_size) | Size of the root volume in gigabytes | `number` | `10` | no | +| [root\_volume\_type](#input\_root\_volume\_type) | Type of root volume. Can be standard, gp2 or io1 | `string` | `"gp2"` | no | +| [security\_group\_description](#input\_security\_group\_description) | The Security Group description. | `string` | `"EC2 instances Security Group"` | no | +| [security\_group\_enabled](#input\_security\_group\_enabled) | Whether to create default Security Group for EC2 instances. | `bool` | `true` | no | +| [security\_group\_name](#input\_security\_group\_name) | The name to assign to the security group. Must be unique within the VPC.
If not provided, will be derived from the `null-label.context` passed in.
If `create_before_destroy` is true, will be used as a name prefix. | `list(string)` | `[]` | no | +| [security\_group\_rules](#input\_security\_group\_rules) | A list of maps of Security Group rules.
The values of map is fully complated with `aws_security_group_rule` resource.
To get more info see https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/security_group_rule . | `list(any)` | `[]` | no | +| [security\_groups](#input\_security\_groups) | A list of Security Group IDs to associate with EC2 instances. | `list(string)` | `[]` | no | +| [source\_dest\_check](#input\_source\_dest\_check) | Controls if traffic is routed to the instance when the destination address does not match the instance. Used for NAT or VPNs | `bool` | `true` | no | +| [ssh\_key\_pair](#input\_ssh\_key\_pair) | SSH key pair to be provisioned on the instance | `string` | `""` | no | +| [ssh\_key\_pair\_path](#input\_ssh\_key\_pair\_path) | Path to where the generated key pairs will be created. Defaults to $${path.cwd} | `string` | `""` | no | +| [stage](#input\_stage) | ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release' | `string` | `null` | no | +| [statistic\_level](#input\_statistic\_level) | The statistic to apply to the alarm's associated metric. Allowed values are: SampleCount, Average, Sum, Minimum, Maximum | `string` | `"Maximum"` | no | +| [subnet](#input\_subnet) | VPC Subnet ID the instance is launched in | `string` | n/a | yes | +| [tags](#input\_tags) | Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).
Neither the tag keys nor the tag values will be modified by this module. | `map(string)` | `{}` | no | +| [tenant](#input\_tenant) | ID element \_(Rarely used, not included by default)\_. A customer identifier, indicating who this instance of a resource is for | `string` | `null` | no | +| [user\_data](#input\_user\_data) | Instance user data. Do not pass gzip-compressed data via this argument | `string` | `""` | no | +| [vpc\_id](#input\_vpc\_id) | The ID of the VPC that the instance security group belongs to | `string` | n/a | yes | ## Outputs | Name | Description | |------|-------------| -| alarm_ids | CloudWatch Alarm IDs | -| aws_key_pair_name | Name of AWS key pair | -| ebs_ids | IDs of EBSs | -| eip_per_instance_count | Number of EIPs per instance. | -| eni_to_eip_map | Map of ENI with EIP | -| ids | Disambiguated IDs list | -| instance_count | Total number of instances created. | -| network_interface_ids | IDs of the network interface that was created with the instance | -| new_ssh_keypair_generated | Was a new ssh_key_pair generated | -| primary_network_interface_ids | IDs of the instance's primary network interface | -| private_dns | Private DNS records of instances | -| private_ips | Private IPs of instances | -| public_dns | All public DNS records for the public interfaces and ENIs | -| public_ips | List of Public IPs of instances (or EIP) | -| role_names | Names of AWS IAM Roles associated with creating instance | -| security_group_ids | ID on the new AWS Security Group associated with creating instance | -| ssh_key_pem_path | Path where SSH key pair was created (if applicable) | - - - - -## Share the Love - -Like this project? Please give it a β˜… on [our GitHub](https://github.com/cloudposse/terraform-aws-ec2-instance-group)! (it helps us **a lot**) - -Are you using this project or any of our other projects? Consider [leaving a testimonial][testimonial]. =) +| [alarm\_ids](#output\_alarm\_ids) | CloudWatch Alarm IDs | +| [aws\_key\_pair\_name](#output\_aws\_key\_pair\_name) | Name of AWS key pair | +| [ebs\_ids](#output\_ebs\_ids) | IDs of EBSs | +| [eip\_per\_instance\_count](#output\_eip\_per\_instance\_count) | Number of EIPs per instance. | +| [eni\_to\_eip\_map](#output\_eni\_to\_eip\_map) | Map of ENI with EIP | +| [ids](#output\_ids) | Disambiguated IDs list | +| [instance\_count](#output\_instance\_count) | Total number of instances created | +| [name](#output\_name) | Instance(s) name | +| [new\_ssh\_keypair\_generated](#output\_new\_ssh\_keypair\_generated) | Was a new ssh\_key\_pair generated | +| [primary\_network\_interface\_ids](#output\_primary\_network\_interface\_ids) | IDs of the instance's primary network interface | +| [private\_dns](#output\_private\_dns) | Private DNS records of instances | +| [private\_ips](#output\_private\_ips) | Private IPs of instances | +| [public\_dns](#output\_public\_dns) | All public DNS records for the public interfaces and ENIs | +| [public\_ips](#output\_public\_ips) | List of Public IPs of instances (or EIP) | +| [role\_names](#output\_role\_names) | Names of AWS IAM Roles associated with creating instance | +| [security\_group\_arn](#output\_security\_group\_arn) | EC2 instances Security Group ARN | +| [security\_group\_id](#output\_security\_group\_id) | EC2 instances Security Group ID | +| [security\_group\_ids](#output\_security\_group\_ids) | ID on the new AWS Security Group associated with creating instance | +| [security\_group\_name](#output\_security\_group\_name) | EC2 instances Security Group name | +| [ssh\_key\_pem\_path](#output\_ssh\_key\_pem\_path) | Path where SSH key pair was created (if applicable) | + ## Related Projects @@ -235,173 +334,131 @@ Check out these related projects. - [https://github.com/cloudposse/terraform-aws-rds-cluster](https://github.com/cloudposse/terraform-aws-rds-cluster) - Terraform module to provision an RDS Aurora cluster for MySQL or Postgres - - ## References -For additional context, refer to some of these links. +For additional context, refer to some of these links. - [terraform-aws-ec2-bastion-server](https://github.com/cloudposse/terraform-aws-ec2-bastion-server) - Terraform module to define a generic Bastion host with parameterized user_data -## Help - -**Got a question?** -File a GitHub [issue](https://github.com/cloudposse/terraform-aws-ec2-instance-group/issues), send us an [email][email] or join our [Slack Community][slack]. - -[![README Commercial Support][readme_commercial_support_img]][readme_commercial_support_link] - -## Commercial Support - -Work directly with our team of DevOps experts via email, slack, and video conferencing. - -We provide [*commercial support*][commercial_support] for all of our [Open Source][github] projects. 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+ +## ✨ Contributing + +This project is under active development, and we encourage contributions from our community. + + + +Many thanks to our outstanding contributors: + + + + + +For πŸ› bug reports & feature requests, please use the [issue tracker](https://github.com/cloudposse/terraform-aws-ec2-instance-group/issues). In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow. - - 1. **Fork** the repo on GitHub - 2. **Clone** the project to your own machine - 3. **Commit** changes to your own branch - 4. **Push** your work back up to your fork - 5. Submit a **Pull Request** so that we can review your changes + 1. Review our [Code of Conduct](https://github.com/cloudposse/terraform-aws-ec2-instance-group/?tab=coc-ov-file#code-of-conduct) and [Contributor Guidelines](https://github.com/cloudposse/.github/blob/main/CONTRIBUTING.md). + 2. **Fork** the repo on GitHub + 3. **Clone** the project to your own machine + 4. **Commit** changes to your own branch + 5. **Push** your work back up to your fork + 6. Submit a **Pull Request** so that we can review your changes **NOTE:** Be sure to merge the latest changes from "upstream" before making a pull request! +### 🌎 Slack Community -## Copyright - -Copyright Β© 2017-2019 [Cloud Posse, LLC](https://cpco.io/copyright) - - - -## License +Join our [Open Source Community](https://cpco.io/slack?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-ec2-instance-group&utm_content=slack) on Slack. It's **FREE** for everyone! Our "SweetOps" community is where you get to talk with others who share a similar vision for how to rollout and manage infrastructure. This is the best place to talk shop, ask questions, solicit feedback, and work together as a community to build totally *sweet* infrastructure. -[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) +### πŸ“° Newsletter -See [LICENSE](LICENSE) for full details. - - Licensed to the Apache Software Foundation (ASF) under one - or more contributor license agreements. See the NOTICE file - distributed with this work for additional information - regarding copyright ownership. The ASF licenses this file - to you under the Apache License, Version 2.0 (the - "License"); you may not use this file except in compliance - with the License. You may obtain a copy of the License at - - https://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, - software distributed under the License is distributed on an - "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - KIND, either express or implied. See the License for the - specific language governing permissions and limitations - under the License. +Sign up for [our newsletter](https://cpco.io/newsletter?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-ec2-instance-group&utm_content=newsletter) and join 3,000+ DevOps engineers, CTOs, and founders who get insider access to the latest DevOps trends, so you can always stay in the know. +Dropped straight into your Inbox every week β€” and usually a 5-minute read. +### πŸ“† Office Hours +[Join us every Wednesday via Zoom](https://cloudposse.com/office-hours?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-ec2-instance-group&utm_content=office_hours) for your weekly dose of insider DevOps trends, AWS news and Terraform insights, all sourced from our SweetOps community, plus a _live Q&A_ that you can’t find anywhere else. +It's **FREE** for everyone! +## License +License +
+Preamble to the Apache License, Version 2.0 +
+
+Complete license is available in the [`LICENSE`](LICENSE) file. +```text +Licensed to the Apache Software Foundation (ASF) under one +or more contributor license agreements. See the NOTICE file +distributed with this work for additional information +regarding copyright ownership. The ASF licenses this file +to you under the Apache License, Version 2.0 (the +"License"); you may not use this file except in compliance +with the License. You may obtain a copy of the License at + https://www.apache.org/licenses/LICENSE-2.0 +Unless required by applicable law or agreed to in writing, +software distributed under the License is distributed on an +"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +KIND, either express or implied. See the License for the +specific language governing permissions and limitations +under the License. +``` +
## Trademarks All other trademarks referenced herein are the property of their respective owners. -## About - -This project is maintained and funded by [Cloud Posse, LLC][website]. Like it? Please let us know by [leaving a testimonial][testimonial]! - -[![Cloud Posse][logo]][website] - -We're a [DevOps Professional Services][hire] company based in Los Angeles, CA. We ❀️ [Open Source Software][we_love_open_source]. - -We offer [paid support][commercial_support] on all of our projects. - -Check out [our other projects][github], [follow us on twitter][twitter], [apply for a job][jobs], or [hire us][hire] to help with your cloud strategy and implementation. - - - -### Contributors - -| [![Erik Osterman][osterman_avatar]][osterman_homepage]
[Erik Osterman][osterman_homepage] | [![Jamie Nelson][Jamie-BitFlight_avatar]][Jamie-BitFlight_homepage]
[Jamie Nelson][Jamie-BitFlight_homepage] | [![Vladimir][SweetOps_avatar]][SweetOps_homepage]
[Vladimir][SweetOps_homepage] | -|---|---|---| - - [osterman_homepage]: https://github.com/osterman - [osterman_avatar]: https://github.com/osterman.png?size=150 - [Jamie-BitFlight_homepage]: https://github.com/Jamie-BitFlight - [Jamie-BitFlight_avatar]: https://github.com/Jamie-BitFlight.png?size=150 - [SweetOps_homepage]: https://github.com/SweetOps - [SweetOps_avatar]: https://github.com/SweetOps.png?size=150 +--- +Copyright Β© 2017-2024 [Cloud Posse, LLC](https://cpco.io/copyright) -[![README Footer][readme_footer_img]][readme_footer_link] -[![Beacon][beacon]][website] +README footer - [logo]: https://cloudposse.com/logo-300x69.svg - [docs]: https://cpco.io/docs - [website]: https://cpco.io/homepage - [github]: https://cpco.io/github - [jobs]: https://cpco.io/jobs - [hire]: https://cpco.io/hire - [slack]: https://cpco.io/slack - [linkedin]: https://cpco.io/linkedin - [twitter]: https://cpco.io/twitter - [testimonial]: https://cpco.io/leave-testimonial - [newsletter]: https://cpco.io/newsletter - 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# Logo for this project #logo: docs/logo.png # License of this project license: "APACHE2" - # Canonical GitHub repo github_repo: cloudposse/terraform-aws-ec2-instance-group - # Badges to display badges: - - name: "Build Status" - image: "https://travis-ci.org/cloudposse/terraform-aws-ec2-instance-group.svg?branch=master" - url: "https://travis-ci.org/cloudposse/terraform-aws-ec2-instance-group" - - name: "Latest Release" - image: "https://img.shields.io/github/release/cloudposse/terraform-aws-ec2-instance-group.svg" - url: "https://github.com/cloudposse/terraform-aws-ec2-instance-group/releases/latest" - - name: "Slack Community" - image: "https://slack.cloudposse.com/badge.svg" - url: "https://slack.cloudposse.com" - + - name: Latest Release + image: https://img.shields.io/github/release/cloudposse/terraform-aws-ec2-instance-group.svg?style=for-the-badge + url: https://github.com/cloudposse/terraform-aws-ec2-instance-group/releases/latest + - name: Last Updated + image: https://img.shields.io/github/last-commit/cloudposse/terraform-aws-ec2-instance-group.svg?style=for-the-badge + url: https://github.com/cloudposse/terraform-aws-ec2-instance-group/commits + - name: Slack Community + image: https://slack.cloudposse.com/for-the-badge.svg + url: https://slack.cloudposse.com + +# List any related terraform modules that this module may be used with or that this module depends on. related: - name: "terraform-aws-ec2-instance" description: "Terraform Module for providing a general EC2 instance provisioned by Ansible" @@ -38,14 +35,13 @@ related: - name: "https://github.com/cloudposse/terraform-aws-rds-cluster" description: "Terraform module to provision an RDS Aurora cluster for MySQL or Postgres" url: "https://github.com/cloudposse/terraform-aws-rds-cluster" - # Short description of this project description: |- Terraform Module for providing N general purpose EC2 hosts. If you only need to provision a single EC2 instance, consider using the [terraform-aws-ec2-instance](https://github.com/cloudposse/terraform-aws-ec2-instance) module instead. - **IMPORTANT** This module by-design does not provision an AutoScaling group. It was designed to provision a discrete number of instances suitable for running stateful services such as databases (E.g. Kafka, Redis, etc). + **IMPORTANT** This module by-design does not provision an AutoScaling group. It was designed to provision a discrete number of instances suitable for running stateful services such as databases (e.g. Kafka, Redis, etc). Included features: @@ -53,7 +49,6 @@ description: |- * Option to switch EIP attachment * CloudWatch monitoring and automatic reboot if instance hangs * Assume Role capability - # How to use this project usage: |- Note: add `${var.ssh_key_pair}` private key to the `ssh agent`. @@ -65,19 +60,20 @@ usage: |- ```hcl module "instance" { - source = "git::https://github.com/cloudposse/terraform-aws-ec2-instance-group.git?ref=master" - namespace = "cp" + source = "cloudposse/ec2-instance-group/aws" + # Cloud Posse recommends pinning every module to a specific version + # version = "x.x.x" + namespace = "eg" stage = "prod" name = "app" ami = "ami-a4dc46db" ami_owner = "099720109477" - ssh_key_pair = "${var.ssh_key_pair}" - instance_type = "${var.instance_type}" - vpc_id = "${var.vpc_id}" - security_groups = ["${var.security_groups}"] - subnet = "${var.subnet}" - - instance_count = "3" + ssh_key_pair = var.ssh_key_pair + instance_type = var.instance_type + vpc_id = var.vpc_id + security_groups = var.security_groups + subnet = var.subnet + instance_count = 3 } ``` @@ -85,22 +81,54 @@ usage: |- ```hcl module "kafka_instance" { - source = "git::https://github.com/cloudposse/terraform-aws-ec2-instance-group.git?ref=master" - namespace = "cp" + source = "cloudposse/ec2-instance-group/aws" + # Cloud Posse recommends pinning every module to a specific version + # version = "x.x.x" + + namespace = "eg" stage = "prod" name = "app" ami = "ami-a4dc46db" ami_owner = "099720109477" - ssh_key_pair = "${var.ssh_key_pair}" - vpc_id = "${var.vpc_id}" - security_groups = ["${var.security_groups}"] - subnet = "${var.subnet}" - associate_public_ip_address = "true" - additional_ips_count = "1" - ebs_volume_count = "2" - allowed_ports = ["22", "80", "443"] - - instance_count = "3" + ssh_key_pair = var.ssh_key_pair + vpc_id = var.vpc_id + security_groups = var.security_groups + subnet = var.subnet + associate_public_ip_address = true + additional_ips_count = 1 + ebs_volume_count = 2 + instance_count = 3 + + security_group_rules = [ + { + type = "egress" + from_port = 0 + to_port = 65535 + protocol = "-1" + cidr_blocks = ["0.0.0.0/0"] + }, + { + type = "ingress" + from_port = 22 + to_port = 22 + protocol = "tcp" + cidr_blocks = ["0.0.0.0/0"] + }, + { + type = "ingress" + from_port = 80 + to_port = 80 + protocol = "tcp" + cidr_blocks = ["0.0.0.0/0"] + }, + { + type = "ingress" + from_port = 443 + to_port = 443 + protocol = "tcp" + cidr_blocks = ["0.0.0.0/0"] + } + ] } ``` @@ -114,28 +142,20 @@ usage: |- It is necessary to run `terraform get` or `terraform init` to download this module. Now reference the label when creating an instance (for example): + ```hcl resource "aws_ami_from_instance" "example" { - count = "${length(module.instance.*.id)}" - name = "terraform-example" - source_instance_id = "${element(module.instance.*.id, count.index)}" + count = length(module.instance.*.id) + name = "app" + source_instance_id = element(module.instance.*.id, count.index) } ``` - references: - name: "terraform-aws-ec2-bastion-server" description: "Terraform module to define a generic Bastion host with parameterized user_data" url: "https://github.com/cloudposse/terraform-aws-ec2-bastion-server" - include: - "docs/targets.md" - "docs/terraform.md" - # Contributors to this project -contributors: - - name: "Erik Osterman" - github: "osterman" - - name: "Jamie Nelson" - github: "Jamie-BitFlight" - - name: "Vladimir" - github: "SweetOps" +contributors: [] diff --git a/cloud_watch_alarm.tf b/cloud_watch_alarm.tf index 4edb047..ed022c5 100644 --- a/cloud_watch_alarm.tf +++ b/cloud_watch_alarm.tf @@ -5,21 +5,21 @@ locals { } resource "aws_cloudwatch_metric_alarm" "default" { - count = "${local.instance_count}" + count = local.instance_count alarm_name = "${module.label.id}-${count.index}" - comparison_operator = "${var.comparison_operator}" - evaluation_periods = "${var.evaluation_periods}" - metric_name = "${var.metric_name}" - namespace = "${var.metric_namespace}" - period = "${var.applying_period}" - statistic = "${var.statistic_level}" - threshold = "${var.metric_threshold}" + comparison_operator = var.comparison_operator + evaluation_periods = var.evaluation_periods + metric_name = var.metric_name + namespace = var.metric_namespace + period = var.applying_period + statistic = var.statistic_level + threshold = var.metric_threshold - dimensions { - InstanceId = "${element(sort(aws_instance.default.*.id), count.index)}" + dimensions = { + InstanceId = sort(aws_instance.default[*].id)[count.index] } alarm_actions = [ - "${local.action}", + local.action ] } diff --git a/context.tf b/context.tf new file mode 100644 index 0000000..5e0ef88 --- /dev/null +++ b/context.tf @@ -0,0 +1,279 @@ +# +# ONLY EDIT THIS FILE IN github.com/cloudposse/terraform-null-label +# All other instances of this file should be a copy of that one +# +# +# Copy this file from https://github.com/cloudposse/terraform-null-label/blob/master/exports/context.tf +# and then place it in your Terraform module to automatically get +# Cloud Posse's standard configuration inputs suitable for passing +# to Cloud Posse modules. +# +# curl -sL https://raw.githubusercontent.com/cloudposse/terraform-null-label/master/exports/context.tf -o context.tf +# +# Modules should access the whole context as `module.this.context` +# to get the input variables with nulls for defaults, +# for example `context = module.this.context`, +# and access individual variables as `module.this.`, +# with final values filled in. +# +# For example, when using defaults, `module.this.context.delimiter` +# will be null, and `module.this.delimiter` will be `-` (hyphen). +# + +module "this" { + source = "cloudposse/label/null" + version = "0.25.0" # requires Terraform >= 0.13.0 + + enabled = var.enabled + namespace = var.namespace + tenant = var.tenant + environment = var.environment + stage = var.stage + name = var.name + delimiter = var.delimiter + attributes = var.attributes + tags = var.tags + additional_tag_map = var.additional_tag_map + label_order = var.label_order + regex_replace_chars = var.regex_replace_chars + id_length_limit = var.id_length_limit + label_key_case = var.label_key_case + label_value_case = var.label_value_case + descriptor_formats = var.descriptor_formats + labels_as_tags = var.labels_as_tags + + context = var.context +} + +# Copy contents of cloudposse/terraform-null-label/variables.tf here + +variable "context" { + type = any + default = { + enabled = true + namespace = null + tenant = null + environment = null + stage = null + name = null + delimiter = null + attributes = [] + tags = {} + additional_tag_map = {} + regex_replace_chars = null + label_order = [] + id_length_limit = null + label_key_case = null + label_value_case = null + descriptor_formats = {} + # Note: we have to use [] instead of null for unset lists due to + # https://github.com/hashicorp/terraform/issues/28137 + # which was not fixed until Terraform 1.0.0, + # but we want the default to be all the labels in `label_order` + # and we want users to be able to prevent all tag generation + # by setting `labels_as_tags` to `[]`, so we need + # a different sentinel to indicate "default" + labels_as_tags = ["unset"] + } + description = <<-EOT + Single object for setting entire context at once. + See description of individual variables for details. + Leave string and numeric variables as `null` to use default value. + Individual variable settings (non-null) override settings in context object, + except for attributes, tags, and additional_tag_map, which are merged. + EOT + + validation { + condition = lookup(var.context, "label_key_case", null) == null ? true : contains(["lower", "title", "upper"], var.context["label_key_case"]) + error_message = "Allowed values: `lower`, `title`, `upper`." + } + + validation { + condition = lookup(var.context, "label_value_case", null) == null ? true : contains(["lower", "title", "upper", "none"], var.context["label_value_case"]) + error_message = "Allowed values: `lower`, `title`, `upper`, `none`." + } +} + +variable "enabled" { + type = bool + default = null + description = "Set to false to prevent the module from creating any resources" +} + +variable "namespace" { + type = string + default = null + description = "ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique" +} + +variable "tenant" { + type = string + default = null + description = "ID element _(Rarely used, not included by default)_. A customer identifier, indicating who this instance of a resource is for" +} + +variable "environment" { + type = string + default = null + description = "ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'" +} + +variable "stage" { + type = string + default = null + description = "ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'" +} + +variable "name" { + type = string + default = null + description = <<-EOT + ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'. + This is the only ID element not also included as a `tag`. + The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input. + EOT +} + +variable "delimiter" { + type = string + default = null + description = <<-EOT + Delimiter to be used between ID elements. + Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. + EOT +} + +variable "attributes" { + type = list(string) + default = [] + description = <<-EOT + ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`, + in the order they appear in the list. New attributes are appended to the + end of the list. The elements of the list are joined by the `delimiter` + and treated as a single ID element. + EOT +} + +variable "labels_as_tags" { + type = set(string) + default = ["default"] + description = <<-EOT + Set of labels (ID elements) to include as tags in the `tags` output. + Default is to include all labels. + Tags with empty values will not be included in the `tags` output. + Set to `[]` to suppress all generated tags. + **Notes:** + The value of the `name` tag, if included, will be the `id`, not the `name`. + Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be + changed in later chained modules. Attempts to change it will be silently ignored. + EOT +} + +variable "tags" { + type = map(string) + default = {} + description = <<-EOT + Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`). + Neither the tag keys nor the tag values will be modified by this module. + EOT +} + +variable "additional_tag_map" { + type = map(string) + default = {} + description = <<-EOT + Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`. + This is for some rare cases where resources want additional configuration of tags + and therefore take a list of maps with tag key, value, and additional configuration. + EOT +} + +variable "label_order" { + type = list(string) + default = null + description = <<-EOT + The order in which the labels (ID elements) appear in the `id`. + Defaults to ["namespace", "environment", "stage", "name", "attributes"]. + You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present. + EOT +} + +variable "regex_replace_chars" { + type = string + default = null + description = <<-EOT + Terraform regular expression (regex) string. + Characters matching the regex will be removed from the ID elements. + If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. + EOT +} + +variable "id_length_limit" { + type = number + default = null + description = <<-EOT + Limit `id` to this many characters (minimum 6). + Set to `0` for unlimited length. + Set to `null` for keep the existing setting, which defaults to `0`. + Does not affect `id_full`. + EOT + validation { + condition = var.id_length_limit == null ? true : var.id_length_limit >= 6 || var.id_length_limit == 0 + error_message = "The id_length_limit must be >= 6 if supplied (not null), or 0 for unlimited length." + } +} + +variable "label_key_case" { + type = string + default = null + description = <<-EOT + Controls the letter case of the `tags` keys (label names) for tags generated by this module. + Does not affect keys of tags passed in via the `tags` input. + Possible values: `lower`, `title`, `upper`. + Default value: `title`. + EOT + + validation { + condition = var.label_key_case == null ? true : contains(["lower", "title", "upper"], var.label_key_case) + error_message = "Allowed values: `lower`, `title`, `upper`." + } +} + +variable "label_value_case" { + type = string + default = null + description = <<-EOT + Controls the letter case of ID elements (labels) as included in `id`, + set as tag values, and output by this module individually. + Does not affect values of tags passed in via the `tags` input. + Possible values: `lower`, `title`, `upper` and `none` (no transformation). + Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs. + Default value: `lower`. + EOT + + validation { + condition = var.label_value_case == null ? true : contains(["lower", "title", "upper", "none"], var.label_value_case) + error_message = "Allowed values: `lower`, `title`, `upper`, `none`." + } +} + +variable "descriptor_formats" { + type = any + default = {} + description = <<-EOT + Describe additional descriptors to be output in the `descriptors` output map. + Map of maps. Keys are names of descriptors. Values are maps of the form + `{ + format = string + labels = list(string) + }` + (Type is `any` so the map values can later be enhanced to provide additional options.) + `format` is a Terraform format string to be passed to the `format()` function. + `labels` is a list of labels, in order, to pass to `format()` function. + Label values will be normalized before being passed to `format()` so they will be + identical to how they appear in `id`. + Default is `{}` (`descriptors` output will be empty). + EOT +} + +#### End of copy of cloudposse/terraform-null-label/variables.tf diff --git a/docs/targets.md b/docs/targets.md index 3d4be2a..3dce8b3 100644 --- a/docs/targets.md +++ b/docs/targets.md @@ -1,5 +1,6 @@ + ## Makefile Targets -``` +```text Available targets: help Help screen @@ -8,3 +9,4 @@ Available targets: lint Lint terraform code ``` + diff --git a/docs/terraform.md b/docs/terraform.md index 7fc27db..21223e5 100644 --- a/docs/terraform.md +++ b/docs/terraform.md @@ -1,77 +1,140 @@ + +## Requirements + +| Name | Version | +|------|---------| +| [terraform](#requirement\_terraform) | >= 1.0 | +| [aws](#requirement\_aws) | >= 2.0 | + +## Providers + +| Name | Version | +|------|---------| +| [aws](#provider\_aws) | >= 2.0 | + +## Modules + +| Name | Source | Version | +|------|--------|---------| +| [label](#module\_label) | cloudposse/label/null | 0.25.0 | +| [security\_group](#module\_security\_group) | cloudposse/security-group/aws | 2.2.0 | +| [ssh\_key\_pair](#module\_ssh\_key\_pair) | cloudposse/key-pair/aws | 0.19.0 | +| [this](#module\_this) | cloudposse/label/null | 0.25.0 | + +## Resources + +| Name | Type | +|------|------| +| [aws_cloudwatch_metric_alarm.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudwatch_metric_alarm) | resource | +| [aws_ebs_volume.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/ebs_volume) | resource | +| [aws_eip.additional](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/eip) | resource | +| [aws_eip.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/eip) | resource | +| [aws_iam_instance_profile.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_instance_profile) | resource | +| [aws_iam_role.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role) | resource | +| [aws_instance.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/instance) | resource | +| [aws_network_interface.additional](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/network_interface) | resource | +| [aws_network_interface_attachment.additional](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/network_interface_attachment) | resource | +| [aws_volume_attachment.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/volume_attachment) | resource | +| [aws_ami.info](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ami) | data source | +| [aws_caller_identity.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/caller_identity) | data source | +| [aws_iam_policy_document.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source | +| [aws_region.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/region) | data source | + ## Inputs | Name | Description | Type | Default | Required | -|------|-------------|:----:|:-----:|:-----:| -| additional_ips_count | Count of additional EIPs | string | `0` | no | -| allowed_ports | List of allowed ingress ports | list | `` | no | -| ami | The AMI to use for the instance. | string | - | yes | -| ami_owner | Owner of the given AMI | string | - | yes | -| applying_period | The period in seconds over which the specified statistic is applied | string | `60` | no | -| assign_eip_address | Assign an Elastic IP address to the instance | string | `true` | no | -| associate_public_ip_address | Associate a public IP address with the instance | string | `true` | no | -| attributes | Additional attributes (e.g. `policy` or `role`) | list | `` | no | -| availability_zone | Availability Zone the instance is launched in. If not set, will be launched in the first AZ of the region | string | `` | no | -| comparison_operator | The arithmetic operation to use when comparing the specified Statistic and Threshold. Possible values are: GreaterThanOrEqualToThreshold, GreaterThanThreshold, LessThanThreshold, LessThanOrEqualToThreshold. | string | `GreaterThanOrEqualToThreshold` | no | -| create_default_security_group | Create default Security Group with only Egress traffic allowed | string | `true` | no | -| default_alarm_action | - | string | `action/actions/AWS_EC2.InstanceId.Reboot/1.0` | no | -| delete_on_termination | Whether the volume should be destroyed on instance termination | string | `true` | no | -| delimiter | - | string | `-` | no | -| disable_api_termination | Enable EC2 Instance Termination Protection | string | `false` | no | -| ebs_device_names | Name of the EBS device to mount | list | `` | no | -| ebs_iops | Amount of provisioned IOPS. This must be set with a volume_type of io1 | string | `0` | no | -| ebs_optimized | Launched EC2 instance will be EBS-optimized | string | `false` | no | -| ebs_volume_count | Count of EBS volumes that will be attached to the instance | string | `0` | no | -| ebs_volume_size | Size of the EBS volume in gigabytes | string | `10` | no | -| ebs_volume_type | The type of EBS volume. Can be standard, gp2 or io1 | string | `gp2` | no | -| evaluation_periods | The number of periods over which data is compared to the specified threshold. | string | `5` | no | -| generate_ssh_key_pair | If true, create a new key pair and save the pem for it to the current working directory | string | `false` | no | -| instance_count | Count of ec2 instances to create | string | `1` | no | -| instance_enabled | Flag to control the instance creation. Set to false if it is necessary to skip instance creation | string | `true` | no | -| instance_type | The type of the instance | string | `t2.micro` | no | -| ipv6_address_count | Number of IPv6 addresses to associate with the primary network interface. Amazon EC2 chooses the IPv6 addresses from the range of your subnet | string | `0` | no | -| ipv6_addresses | List of IPv6 addresses from the range of the subnet to associate with the primary network interface | list | `` | no | -| metric_name | The name for the alarm's associated metric. Allowed values can be found in https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/ec2-metricscollected.html | string | `StatusCheckFailed_Instance` | no | -| metric_namespace | The namespace for the alarm's associated metric. Allowed values can be found in https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/aws-namespaces.html | string | `AWS/EC2` | no | -| metric_threshold | The value against which the specified statistic is compared | string | `1` | no | -| monitoring | Launched EC2 instance will have detailed monitoring enabled | string | `true` | no | -| name | Name (e.g. `bastion` or `db`) - required for `terraform-terraform-label` module | string | - | yes | -| namespace | Namespace (e.g. `cp` or `cloudposse`) - required for `terraform-terraform-label` module | string | - | yes | -| private_ips | Private IP address to associate with the instances in the VPC | list | `` | no | -| region | AWS Region the instance is launched in | string | `` | no | -| root_iops | Amount of provisioned IOPS. This must be set if root_volume_type is set to `io1` | string | `0` | no | -| root_volume_size | Size of the root volume in gigabytes | string | `10` | no | -| root_volume_type | Type of root volume. Can be standard, gp2 or io1 | string | `gp2` | no | -| security_groups | List of Security Group IDs allowed to connect to the instance | list | `` | no | -| source_dest_check | Controls if traffic is routed to the instance when the destination address does not match the instance. Used for NAT or VPNs | string | `true` | no | -| ssh_key_pair | SSH key pair to be provisioned on the instance | string | `` | no | -| ssh_key_pair_path | Path to where the generated key pairs will be created. Defaults to $${path.cwd} | string | `` | no | -| stage | Stage (e.g. `prod`, `dev`, `staging` - required for `terraform-terraform-label` module | string | - | yes | -| statistic_level | The statistic to apply to the alarm's associated metric. Allowed values are: SampleCount, Average, Sum, Minimum, Maximum | string | `Maximum` | no | -| subnet | VPC Subnet ID the instance is launched in | string | - | yes | -| tags | Additional tags | map | `` | no | -| user_data | Instance user data. Do not pass gzip-compressed data via this argument | string | `` | no | -| vpc_id | The ID of the VPC that the instance security group belongs to | string | - | yes | -| welcome_message | - | string | `` | no | +|------|-------------|------|---------|:--------:| +| [additional\_ips\_count](#input\_additional\_ips\_count) | Count of additional EIPs | `number` | `0` | no | +| [additional\_tag\_map](#input\_additional\_tag\_map) | Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`.
This is for some rare cases where resources want additional configuration of tags
and therefore take a list of maps with tag key, value, and additional configuration. | `map(string)` | `{}` | no | +| [ami](#input\_ami) | The AMI to use for the instance | `string` | n/a | yes | +| [ami\_owner](#input\_ami\_owner) | Owner of the given AMI | `string` | n/a | yes | +| [applying\_period](#input\_applying\_period) | The period in seconds over which the specified statistic is applied | `number` | `60` | no | +| [assign\_eip\_address](#input\_assign\_eip\_address) | Assign an Elastic IP address to the instance | `bool` | `true` | no | +| [associate\_public\_ip\_address](#input\_associate\_public\_ip\_address) | Associate a public IP address with the instance | `bool` | `false` | no | +| [attributes](#input\_attributes) | ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,
in the order they appear in the list. New attributes are appended to the
end of the list. The elements of the list are joined by the `delimiter`
and treated as a single ID element. | `list(string)` | `[]` | no | +| [availability\_zone](#input\_availability\_zone) | Availability Zone the instance is launched in. If not set, will be launched in the first AZ of the region | `string` | `""` | no | +| [comparison\_operator](#input\_comparison\_operator) | The arithmetic operation to use when comparing the specified Statistic and Threshold. Possible values are: GreaterThanOrEqualToThreshold, GreaterThanThreshold, LessThanThreshold, LessThanOrEqualToThreshold | `string` | `"GreaterThanOrEqualToThreshold"` | no | +| [context](#input\_context) | Single object for setting entire context at once.
See description of individual variables for details.
Leave string and numeric variables as `null` to use default value.
Individual variable settings (non-null) override settings in context object,
except for attributes, tags, and additional\_tag\_map, which are merged. | `any` | 
{
  "additional_tag_map": {},
  "attributes": [],
  "delimiter": null,
  "descriptor_formats": {},
  "enabled": true,
  "environment": null,
  "id_length_limit": null,
  "label_key_case": null,
  "label_order": [],
  "label_value_case": null,
  "labels_as_tags": [
    "unset"
  ],
  "name": null,
  "namespace": null,
  "regex_replace_chars": null,
  "stage": null,
  "tags": {},
  "tenant": null
}
| no | +| [default\_alarm\_action](#input\_default\_alarm\_action) | Default alarm action | `string` | `"action/actions/AWS_EC2.InstanceId.Reboot/1.0"` | no | +| [delete\_on\_termination](#input\_delete\_on\_termination) | Whether the volume should be destroyed on instance termination | `bool` | `true` | no | +| [delimiter](#input\_delimiter) | Delimiter to be used between ID elements.
Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no | +| [descriptor\_formats](#input\_descriptor\_formats) | Describe additional descriptors to be output in the `descriptors` output map.
Map of maps. Keys are names of descriptors. Values are maps of the form
`{
format = string
labels = list(string)
}`
(Type is `any` so the map values can later be enhanced to provide additional options.)
`format` is a Terraform format string to be passed to the `format()` function.
`labels` is a list of labels, in order, to pass to `format()` function.
Label values will be normalized before being passed to `format()` so they will be
identical to how they appear in `id`.
Default is `{}` (`descriptors` output will be empty). | `any` | `{}` | no | +| [disable\_api\_termination](#input\_disable\_api\_termination) | Enable EC2 Instance Termination Protection | `bool` | `false` | no | +| [ebs\_device\_names](#input\_ebs\_device\_names) | Name of the EBS device to mount | `list(string)` | 
[
  "/dev/xvdb",
  "/dev/xvdc",
  "/dev/xvdd",
  "/dev/xvde",
  "/dev/xvdf",
  "/dev/xvdg",
  "/dev/xvdh",
  "/dev/xvdi",
  "/dev/xvdj",
  "/dev/xvdk",
  "/dev/xvdl",
  "/dev/xvdm",
  "/dev/xvdn",
  "/dev/xvdo",
  "/dev/xvdp",
  "/dev/xvdq",
  "/dev/xvdr",
  "/dev/xvds",
  "/dev/xvdt",
  "/dev/xvdu",
  "/dev/xvdv",
  "/dev/xvdw",
  "/dev/xvdx",
  "/dev/xvdy",
  "/dev/xvdz"
]
| no | +| [ebs\_iops](#input\_ebs\_iops) | Amount of provisioned IOPS. This must be set with a volume\_type of io1 | `number` | `0` | no | +| [ebs\_optimized](#input\_ebs\_optimized) | Launched EC2 instance will be EBS-optimized | `bool` | `false` | no | +| [ebs\_volume\_count](#input\_ebs\_volume\_count) | Count of EBS volumes that will be attached to the instance | `number` | `0` | no | +| [ebs\_volume\_encrypted](#input\_ebs\_volume\_encrypted) | Size of the EBS volume in gigabytes | `bool` | `true` | no | +| [ebs\_volume\_size](#input\_ebs\_volume\_size) | Size of the EBS volume in gigabytes | `number` | `10` | no | +| [ebs\_volume\_type](#input\_ebs\_volume\_type) | The type of EBS volume. Can be standard, gp2 or io1 | `string` | `"gp2"` | no | +| [enabled](#input\_enabled) | Set to false to prevent the module from creating any resources | `bool` | `null` | no | +| [environment](#input\_environment) | ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT' | `string` | `null` | no | +| [evaluation\_periods](#input\_evaluation\_periods) | The number of periods over which data is compared to the specified threshold | `number` | `5` | no | +| [generate\_ssh\_key\_pair](#input\_generate\_ssh\_key\_pair) | If true, create a new key pair and save the pem for it to the current working directory | `bool` | `false` | no | +| [id\_length\_limit](#input\_id\_length\_limit) | Limit `id` to this many characters (minimum 6).
Set to `0` for unlimited length.
Set to `null` for keep the existing setting, which defaults to `0`.
Does not affect `id_full`. | `number` | `null` | no | +| [instance\_count](#input\_instance\_count) | Count of ec2 instances to create | `number` | `1` | no | +| [instance\_type](#input\_instance\_type) | The type of the instance | `string` | `"t2.micro"` | no | +| [ipv6\_address\_count](#input\_ipv6\_address\_count) | Number of IPv6 addresses to associate with the primary network interface. Amazon EC2 chooses the IPv6 addresses from the range of your subnet | `number` | `0` | no | +| [ipv6\_addresses](#input\_ipv6\_addresses) | List of IPv6 addresses from the range of the subnet to associate with the primary network interface | `list(string)` | `[]` | no | +| [kms\_key\_id](#input\_kms\_key\_id) | KMS key ID used to encrypt EBS volume. When specifying kms\_key\_id, ebs\_volume\_encrypted needs to be set to true | `string` | `null` | no | +| [label\_key\_case](#input\_label\_key\_case) | Controls the letter case of the `tags` keys (label names) for tags generated by this module.
Does not affect keys of tags passed in via the `tags` input.
Possible values: `lower`, `title`, `upper`.
Default value: `title`. | `string` | `null` | no | +| [label\_order](#input\_label\_order) | The order in which the labels (ID elements) appear in the `id`.
Defaults to ["namespace", "environment", "stage", "name", "attributes"].
You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present. | `list(string)` | `null` | no | +| [label\_value\_case](#input\_label\_value\_case) | Controls the letter case of ID elements (labels) as included in `id`,
set as tag values, and output by this module individually.
Does not affect values of tags passed in via the `tags` input.
Possible values: `lower`, `title`, `upper` and `none` (no transformation).
Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs.
Default value: `lower`. | `string` | `null` | no | +| [labels\_as\_tags](#input\_labels\_as\_tags) | Set of labels (ID elements) to include as tags in the `tags` output.
Default is to include all labels.
Tags with empty values will not be included in the `tags` output.
Set to `[]` to suppress all generated tags.
**Notes:**
The value of the `name` tag, if included, will be the `id`, not the `name`.
Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be
changed in later chained modules. Attempts to change it will be silently ignored. | `set(string)` | 
[
  "default"
]
| no | +| [metadata\_http\_endpoint\_enabled](#input\_metadata\_http\_endpoint\_enabled) | Whether the metadata service is available | `bool` | `true` | no | +| [metadata\_http\_tokens\_required](#input\_metadata\_http\_tokens\_required) | Whether or not the metadata service requires session tokens, also referred to as Instance Metadata Service Version 2. | `bool` | `true` | no | +| [metric\_name](#input\_metric\_name) | The name for the alarm's associated metric. Allowed values can be found in https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/ec2-metricscollected.html | `string` | `"StatusCheckFailed_Instance"` | no | +| [metric\_namespace](#input\_metric\_namespace) | The namespace for the alarm's associated metric. Allowed values can be found in https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/aws-namespaces.html | `string` | `"AWS/EC2"` | no | +| [metric\_threshold](#input\_metric\_threshold) | The value against which the specified statistic is compared | `number` | `1` | no | +| [monitoring](#input\_monitoring) | Launched EC2 instance will have detailed monitoring enabled | `bool` | `true` | no | +| [name](#input\_name) | ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.
This is the only ID element not also included as a `tag`.
The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input. | `string` | `null` | no | +| [namespace](#input\_namespace) | ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique | `string` | `null` | no | +| [permissions\_boundary\_arn](#input\_permissions\_boundary\_arn) | Policy ARN to attach to instance role as a permissions boundary | `string` | `""` | no | +| [private\_ips](#input\_private\_ips) | Private IP address to associate with the instances in the VPC | `list(string)` | `[]` | no | +| [regex\_replace\_chars](#input\_regex\_replace\_chars) | Terraform regular expression (regex) string.
Characters matching the regex will be removed from the ID elements.
If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. | `string` | `null` | no | +| [region](#input\_region) | AWS Region the instance is launched in | `string` | n/a | yes | +| [root\_block\_device\_encrypted](#input\_root\_block\_device\_encrypted) | Whether to encrypt the root block device | `bool` | `true` | no | +| [root\_iops](#input\_root\_iops) | Amount of provisioned IOPS. This must be set if root\_volume\_type is set to `io1` | `number` | `0` | no | +| [root\_volume\_size](#input\_root\_volume\_size) | Size of the root volume in gigabytes | `number` | `10` | no | +| [root\_volume\_type](#input\_root\_volume\_type) | Type of root volume. Can be standard, gp2 or io1 | `string` | `"gp2"` | no | +| [security\_group\_description](#input\_security\_group\_description) | The Security Group description. | `string` | `"EC2 instances Security Group"` | no | +| [security\_group\_enabled](#input\_security\_group\_enabled) | Whether to create default Security Group for EC2 instances. | `bool` | `true` | no | +| [security\_group\_name](#input\_security\_group\_name) | The name to assign to the security group. Must be unique within the VPC.
If not provided, will be derived from the `null-label.context` passed in.
If `create_before_destroy` is true, will be used as a name prefix. | `list(string)` | `[]` | no | +| [security\_group\_rules](#input\_security\_group\_rules) | A list of maps of Security Group rules.
The values of map is fully complated with `aws_security_group_rule` resource.
To get more info see https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/security_group_rule . | `list(any)` | `[]` | no | +| [security\_groups](#input\_security\_groups) | A list of Security Group IDs to associate with EC2 instances. | `list(string)` | `[]` | no | +| [source\_dest\_check](#input\_source\_dest\_check) | Controls if traffic is routed to the instance when the destination address does not match the instance. Used for NAT or VPNs | `bool` | `true` | no | +| [ssh\_key\_pair](#input\_ssh\_key\_pair) | SSH key pair to be provisioned on the instance | `string` | `""` | no | +| [ssh\_key\_pair\_path](#input\_ssh\_key\_pair\_path) | Path to where the generated key pairs will be created. Defaults to $${path.cwd} | `string` | `""` | no | +| [stage](#input\_stage) | ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release' | `string` | `null` | no | +| [statistic\_level](#input\_statistic\_level) | The statistic to apply to the alarm's associated metric. Allowed values are: SampleCount, Average, Sum, Minimum, Maximum | `string` | `"Maximum"` | no | +| [subnet](#input\_subnet) | VPC Subnet ID the instance is launched in | `string` | n/a | yes | +| [tags](#input\_tags) | Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).
Neither the tag keys nor the tag values will be modified by this module. | `map(string)` | `{}` | no | +| [tenant](#input\_tenant) | ID element \_(Rarely used, not included by default)\_. A customer identifier, indicating who this instance of a resource is for | `string` | `null` | no | +| [user\_data](#input\_user\_data) | Instance user data. Do not pass gzip-compressed data via this argument | `string` | `""` | no | +| [vpc\_id](#input\_vpc\_id) | The ID of the VPC that the instance security group belongs to | `string` | n/a | yes | ## Outputs | Name | Description | |------|-------------| -| alarm_ids | CloudWatch Alarm IDs | -| aws_key_pair_name | Name of AWS key pair | -| ebs_ids | IDs of EBSs | -| eip_per_instance_count | Number of EIPs per instance. | -| eni_to_eip_map | Map of ENI with EIP | -| ids | Disambiguated IDs list | -| instance_count | Total number of instances created. | -| network_interface_ids | IDs of the network interface that was created with the instance | -| new_ssh_keypair_generated | Was a new ssh_key_pair generated | -| primary_network_interface_ids | IDs of the instance's primary network interface | -| private_dns | Private DNS records of instances | -| private_ips | Private IPs of instances | -| public_dns | All public DNS records for the public interfaces and ENIs | -| public_ips | List of Public IPs of instances (or EIP) | -| role_names | Names of AWS IAM Roles associated with creating instance | -| security_group_ids | ID on the new AWS Security Group associated with creating instance | -| ssh_key_pem_path | Path where SSH key pair was created (if applicable) | - +| [alarm\_ids](#output\_alarm\_ids) | CloudWatch Alarm IDs | +| [aws\_key\_pair\_name](#output\_aws\_key\_pair\_name) | Name of AWS key pair | +| [ebs\_ids](#output\_ebs\_ids) | IDs of EBSs | +| [eip\_per\_instance\_count](#output\_eip\_per\_instance\_count) | Number of EIPs per instance. | +| [eni\_to\_eip\_map](#output\_eni\_to\_eip\_map) | Map of ENI with EIP | +| [ids](#output\_ids) | Disambiguated IDs list | +| [instance\_count](#output\_instance\_count) | Total number of instances created | +| [name](#output\_name) | Instance(s) name | +| [new\_ssh\_keypair\_generated](#output\_new\_ssh\_keypair\_generated) | Was a new ssh\_key\_pair generated | +| [primary\_network\_interface\_ids](#output\_primary\_network\_interface\_ids) | IDs of the instance's primary network interface | +| [private\_dns](#output\_private\_dns) | Private DNS records of instances | +| [private\_ips](#output\_private\_ips) | Private IPs of instances | +| [public\_dns](#output\_public\_dns) | All public DNS records for the public interfaces and ENIs | +| [public\_ips](#output\_public\_ips) | List of Public IPs of instances (or EIP) | +| [role\_names](#output\_role\_names) | Names of AWS IAM Roles associated with creating instance | +| [security\_group\_arn](#output\_security\_group\_arn) | EC2 instances Security Group ARN | +| [security\_group\_id](#output\_security\_group\_id) | EC2 instances Security Group ID | +| [security\_group\_ids](#output\_security\_group\_ids) | ID on the new AWS Security Group associated with creating instance | +| [security\_group\_name](#output\_security\_group\_name) | EC2 instances Security Group name | +| [ssh\_key\_pem\_path](#output\_ssh\_key\_pem\_path) | Path where SSH key pair was created (if applicable) | + diff --git a/eni.tf b/eni.tf index d789a35..1280823 100644 --- a/eni.tf +++ b/eni.tf @@ -1,30 +1,27 @@ locals { - additional_ips_count = "${var.associate_public_ip_address == "true" && var.instance_enabled == "true" && var.additional_ips_count > 0 ? var.additional_ips_count : 0}" + additional_ips_count = var.associate_public_ip_address && module.this.enabled && var.additional_ips_count > 0 ? var.additional_ips_count : 0 } resource "aws_network_interface" "additional" { - count = "${local.additional_ips_count * var.instance_count}" - subnet_id = "${var.subnet}" + count = local.additional_ips_count * var.instance_count + subnet_id = var.subnet + security_groups = compact(concat(module.security_group[*].id, var.security_groups)) - security_groups = [ - "${compact(concat(list(var.create_default_security_group == "true" ? join("", aws_security_group.default.*.id) : ""), var.security_groups))}", - ] - - tags = "${module.label.tags}" - depends_on = ["aws_instance.default"] + tags = module.label.tags + depends_on = [aws_instance.default] } resource "aws_network_interface_attachment" "additional" { - count = "${local.additional_ips_count * var.instance_count}" - instance_id = "${element(aws_instance.default.*.id, count.index % var.instance_count)}" - network_interface_id = "${element(aws_network_interface.additional.*.id, count.index)}" - device_index = "${1 + count.index}" - depends_on = ["aws_instance.default"] + count = local.additional_ips_count * var.instance_count + instance_id = aws_instance.default[*].id[count.index % var.instance_count] + network_interface_id = aws_network_interface.additional[*].id[count.index] + device_index = 1 + count.index + depends_on = [aws_instance.default] } resource "aws_eip" "additional" { - count = "${local.additional_ips_count * var.instance_count}" - vpc = "true" - network_interface = "${element(aws_network_interface.additional.*.id, count.index)}" - depends_on = ["aws_instance.default"] + count = local.additional_ips_count * var.instance_count + vpc = true + network_interface = aws_network_interface.additional[*].id[count.index] + depends_on = [aws_instance.default] } diff --git a/examples/basic/main.tf b/examples/basic/main.tf new file mode 100644 index 0000000..5c116f7 --- /dev/null +++ b/examples/basic/main.tf @@ -0,0 +1,174 @@ +data "aws_region" "default" {} + +data "aws_subnet" "default" { + id = data.aws_subnets.all.ids[0] +} + +data "aws_vpc" "default" { + default = true +} + +data "aws_subnets" "all" { + filter { + name = "vpc-id" + values = [data.aws_vpc.default.id] + } +} + +provider "aws" { + region = "us-east-1" +} + +data "aws_ami" "ubuntu" { + most_recent = true + + filter { + name = "name" + values = ["ubuntu/images/hvm-ssd/ubuntu-xenial-16.04-amd64-server-*"] + } + + filter { + name = "virtualization-type" + values = ["hvm"] + } + + owners = ["099720109477"] # Canonical +} + +module "zero_servers" { + source = "../../" + + instance_count = 0 + ami = data.aws_ami.ubuntu.id + ami_owner = "099720109477" + namespace = "eg" + stage = "prod" + name = "zero" + + create_default_security_group = true + region = data.aws_region.default.name + availability_zone = data.aws_subnet.default.availability_zone + subnet = data.aws_subnet.default.id + vpc_id = data.aws_vpc.default.id + generate_ssh_key_pair = true +} + +module "one_server" { + source = "../../" + + instance_count = 1 + ami = data.aws_ami.ubuntu.id + ami_owner = "099720109477" + namespace = "eg" + stage = "prod" + name = "one" + + create_default_security_group = true + region = data.aws_region.default.name + availability_zone = data.aws_subnet.default.availability_zone + subnet = data.aws_subnet.default.id + vpc_id = data.aws_vpc.default.id + additional_ips_count = 1 + generate_ssh_key_pair = true + instance_type = "m1.large" // Allows up to 3 ENI, the default t2.micro allows only 1 +} + +module "two_servers" { + source = "../../" + + instance_count = 2 + ami = data.aws_ami.ubuntu.id + ami_owner = "099720109477" + namespace = "eg" + stage = "prod" + name = "two" + + create_default_security_group = true + region = data.aws_region.default.name + availability_zone = data.aws_subnet.default.availability_zone + subnet = data.aws_subnet.default.id + vpc_id = data.aws_vpc.default.id + additional_ips_count = 1 + generate_ssh_key_pair = true + instance_type = "m1.large" // Allows up to 3 ENI, the default t2.micro allows only 1 +} + +output "public_dns" { + value = { + zero = module.zero_servers.public_dns + one = module.one_server.public_dns + two = module.two_servers.public_dns + } +} + +output "public_ips" { + value = { + zero = module.zero_servers.public_ips + one = module.one_server.public_ips + two = module.two_servers.public_ips + } +} + +output "instance_count" { + value = { + zero = module.zero_servers.instance_count + one = module.one_server.instance_count + two = module.two_servers.instance_count + } +} + +output "eni_to_eip_map" { + value = { + zero = module.zero_servers.eni_to_eip_map + one = module.one_server.eni_to_eip_map + two = module.two_servers.eni_to_eip_map + } +} + +output "eip_per_instance_count" { + value = { + zero = module.zero_servers.eip_per_instance_count + one = module.one_server.eip_per_instance_count + two = module.two_servers.eip_per_instance_count + } +} + +output "private_ips" { + value = { + zero = module.zero_servers.private_ips + one = module.one_server.private_ips + two = module.two_servers.private_ips + } +} + +output "private_dns" { + value = { + zero = module.zero_servers.private_dns + one = module.one_server.private_dns + two = module.two_servers.private_dns + } +} + +output "aws_key_pair_name" { + value = { + zero = module.zero_servers.aws_key_pair_name + one = module.one_server.aws_key_pair_name + two = module.two_servers.aws_key_pair_name + } +} + +output "alarm" { + value = { + zero = module.zero_servers.alarm_ids + one = module.one_server.alarm_ids + two = module.two_servers.alarm_ids + } +} + +output "ssh_key_pem_path" { + value = { + zero = module.zero_servers.ssh_key_pem_path + one = module.one_server.ssh_key_pem_path + two = module.two_servers.ssh_key_pem_path + } +} diff --git a/examples/basic/versions.tf b/examples/basic/versions.tf new file mode 100644 index 0000000..d8dd1a4 --- /dev/null +++ b/examples/basic/versions.tf @@ -0,0 +1,10 @@ +terraform { + required_version = ">= 1.0" + + required_providers { + aws = { + source = "hashicorp/aws" + version = ">= 4.0" + } + } +} diff --git a/examples/complete/context.tf b/examples/complete/context.tf new file mode 100644 index 0000000..5e0ef88 --- /dev/null +++ b/examples/complete/context.tf @@ -0,0 +1,279 @@ +# +# ONLY EDIT THIS FILE IN github.com/cloudposse/terraform-null-label +# All other instances of this file should be a copy of that one +# +# +# Copy this file from https://github.com/cloudposse/terraform-null-label/blob/master/exports/context.tf +# and then place it in your Terraform module to automatically get +# Cloud Posse's standard configuration inputs suitable for passing +# to Cloud Posse modules. +# +# curl -sL https://raw.githubusercontent.com/cloudposse/terraform-null-label/master/exports/context.tf -o context.tf +# +# Modules should access the whole context as `module.this.context` +# to get the input variables with nulls for defaults, +# for example `context = module.this.context`, +# and access individual variables as `module.this.`, +# with final values filled in. +# +# For example, when using defaults, `module.this.context.delimiter` +# will be null, and `module.this.delimiter` will be `-` (hyphen). +# + +module "this" { + source = "cloudposse/label/null" + version = "0.25.0" # requires Terraform >= 0.13.0 + + enabled = var.enabled + namespace = var.namespace + tenant = var.tenant + environment = var.environment + stage = var.stage + name = var.name + delimiter = var.delimiter + attributes = var.attributes + tags = var.tags + additional_tag_map = var.additional_tag_map + label_order = var.label_order + regex_replace_chars = var.regex_replace_chars + id_length_limit = var.id_length_limit + label_key_case = var.label_key_case + label_value_case = var.label_value_case + descriptor_formats = var.descriptor_formats + labels_as_tags = var.labels_as_tags + + context = var.context +} + +# Copy contents of cloudposse/terraform-null-label/variables.tf here + +variable "context" { + type = any + default = { + enabled = true + namespace = null + tenant = null + environment = null + stage = null + name = null + delimiter = null + attributes = [] + tags = {} + additional_tag_map = {} + regex_replace_chars = null + label_order = [] + id_length_limit = null + label_key_case = null + label_value_case = null + descriptor_formats = {} + # Note: we have to use [] instead of null for unset lists due to + # https://github.com/hashicorp/terraform/issues/28137 + # which was not fixed until Terraform 1.0.0, + # but we want the default to be all the labels in `label_order` + # and we want users to be able to prevent all tag generation + # by setting `labels_as_tags` to `[]`, so we need + # a different sentinel to indicate "default" + labels_as_tags = ["unset"] + } + description = <<-EOT + Single object for setting entire context at once. + See description of individual variables for details. + Leave string and numeric variables as `null` to use default value. + Individual variable settings (non-null) override settings in context object, + except for attributes, tags, and additional_tag_map, which are merged. + EOT + + validation { + condition = lookup(var.context, "label_key_case", null) == null ? true : contains(["lower", "title", "upper"], var.context["label_key_case"]) + error_message = "Allowed values: `lower`, `title`, `upper`." + } + + validation { + condition = lookup(var.context, "label_value_case", null) == null ? true : contains(["lower", "title", "upper", "none"], var.context["label_value_case"]) + error_message = "Allowed values: `lower`, `title`, `upper`, `none`." + } +} + +variable "enabled" { + type = bool + default = null + description = "Set to false to prevent the module from creating any resources" +} + +variable "namespace" { + type = string + default = null + description = "ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique" +} + +variable "tenant" { + type = string + default = null + description = "ID element _(Rarely used, not included by default)_. A customer identifier, indicating who this instance of a resource is for" +} + +variable "environment" { + type = string + default = null + description = "ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'" +} + +variable "stage" { + type = string + default = null + description = "ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'" +} + +variable "name" { + type = string + default = null + description = <<-EOT + ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'. + This is the only ID element not also included as a `tag`. + The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input. + EOT +} + +variable "delimiter" { + type = string + default = null + description = <<-EOT + Delimiter to be used between ID elements. + Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. + EOT +} + +variable "attributes" { + type = list(string) + default = [] + description = <<-EOT + ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`, + in the order they appear in the list. New attributes are appended to the + end of the list. The elements of the list are joined by the `delimiter` + and treated as a single ID element. + EOT +} + +variable "labels_as_tags" { + type = set(string) + default = ["default"] + description = <<-EOT + Set of labels (ID elements) to include as tags in the `tags` output. + Default is to include all labels. + Tags with empty values will not be included in the `tags` output. + Set to `[]` to suppress all generated tags. + **Notes:** + The value of the `name` tag, if included, will be the `id`, not the `name`. + Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be + changed in later chained modules. Attempts to change it will be silently ignored. + EOT +} + +variable "tags" { + type = map(string) + default = {} + description = <<-EOT + Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`). + Neither the tag keys nor the tag values will be modified by this module. + EOT +} + +variable "additional_tag_map" { + type = map(string) + default = {} + description = <<-EOT + Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`. + This is for some rare cases where resources want additional configuration of tags + and therefore take a list of maps with tag key, value, and additional configuration. + EOT +} + +variable "label_order" { + type = list(string) + default = null + description = <<-EOT + The order in which the labels (ID elements) appear in the `id`. + Defaults to ["namespace", "environment", "stage", "name", "attributes"]. + You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present. + EOT +} + +variable "regex_replace_chars" { + type = string + default = null + description = <<-EOT + Terraform regular expression (regex) string. + Characters matching the regex will be removed from the ID elements. + If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. + EOT +} + +variable "id_length_limit" { + type = number + default = null + description = <<-EOT + Limit `id` to this many characters (minimum 6). + Set to `0` for unlimited length. + Set to `null` for keep the existing setting, which defaults to `0`. + Does not affect `id_full`. + EOT + validation { + condition = var.id_length_limit == null ? true : var.id_length_limit >= 6 || var.id_length_limit == 0 + error_message = "The id_length_limit must be >= 6 if supplied (not null), or 0 for unlimited length." + } +} + +variable "label_key_case" { + type = string + default = null + description = <<-EOT + Controls the letter case of the `tags` keys (label names) for tags generated by this module. + Does not affect keys of tags passed in via the `tags` input. + Possible values: `lower`, `title`, `upper`. + Default value: `title`. + EOT + + validation { + condition = var.label_key_case == null ? true : contains(["lower", "title", "upper"], var.label_key_case) + error_message = "Allowed values: `lower`, `title`, `upper`." + } +} + +variable "label_value_case" { + type = string + default = null + description = <<-EOT + Controls the letter case of ID elements (labels) as included in `id`, + set as tag values, and output by this module individually. + Does not affect values of tags passed in via the `tags` input. + Possible values: `lower`, `title`, `upper` and `none` (no transformation). + Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs. + Default value: `lower`. + EOT + + validation { + condition = var.label_value_case == null ? true : contains(["lower", "title", "upper", "none"], var.label_value_case) + error_message = "Allowed values: `lower`, `title`, `upper`, `none`." + } +} + +variable "descriptor_formats" { + type = any + default = {} + description = <<-EOT + Describe additional descriptors to be output in the `descriptors` output map. + Map of maps. Keys are names of descriptors. Values are maps of the form + `{ + format = string + labels = list(string) + }` + (Type is `any` so the map values can later be enhanced to provide additional options.) + `format` is a Terraform format string to be passed to the `format()` function. + `labels` is a list of labels, in order, to pass to `format()` function. + Label values will be normalized before being passed to `format()` so they will be + identical to how they appear in `id`. + Default is `{}` (`descriptors` output will be empty). + EOT +} + +#### End of copy of cloudposse/terraform-null-label/variables.tf diff --git a/examples/complete/fixtures.us-west-1.tfvars b/examples/complete/fixtures.us-west-1.tfvars new file mode 100644 index 0000000..f3954c1 --- /dev/null +++ b/examples/complete/fixtures.us-west-1.tfvars @@ -0,0 +1,29 @@ +region = "us-west-1" + +namespace = "eg" + +stage = "test" + +name = "ec2-group-test" + +availability_zones = ["us-west-1b", "us-west-1c"] + +instance_type = "t2.micro" + +instance_count = 2 + +ssh_public_key_path = "/secrets" + +generate_ssh_key_pair = true + +associate_public_ip_address = false + +assign_eip_address = false + +ami_owner = "099720109477" + +root_volume_type = "gp2" + +root_volume_size = 10 + +delete_on_termination = true diff --git a/examples/complete/main.tf b/examples/complete/main.tf new file mode 100644 index 0000000..9c4e919 --- /dev/null +++ b/examples/complete/main.tf @@ -0,0 +1,86 @@ +provider "aws" { + region = var.region +} + +module "vpc" { + source = "cloudposse/vpc/aws" + version = "2.1.0" + + ipv4_primary_cidr_block = "172.16.0.0/16" + + context = module.this.context +} + +module "subnets" { + source = "cloudposse/dynamic-subnets/aws" + version = "2.3.0" + + availability_zones = var.availability_zones + vpc_id = module.vpc.vpc_id + igw_id = [module.vpc.igw_id] + ipv4_cidr_block = [module.vpc.vpc_cidr_block] + nat_gateway_enabled = false + nat_instance_enabled = false + + context = module.this.context +} + +data "aws_ami" "ubuntu" { + most_recent = true + + filter { + name = "name" + values = ["ubuntu/images/hvm-ssd/ubuntu-xenial-16.04-amd64-server-*"] + } + + filter { + name = "virtualization-type" + values = ["hvm"] + } + + owners = [var.ami_owner] +} + +module "ec2_instance_group" { + source = "../../" + region = var.region + ami = data.aws_ami.ubuntu.id + ami_owner = var.ami_owner + vpc_id = module.vpc.vpc_id + subnet = module.subnets.private_subnet_ids[0] + security_groups = [module.vpc.vpc_default_security_group_id] + assign_eip_address = var.assign_eip_address + associate_public_ip_address = var.associate_public_ip_address + instance_type = var.instance_type + instance_count = var.instance_count + generate_ssh_key_pair = var.generate_ssh_key_pair + root_volume_type = var.root_volume_type + root_volume_size = var.root_volume_size + delete_on_termination = var.delete_on_termination + + security_group_rules = [ + { + type = "ingress" + from_port = 22 + to_port = 22 + protocol = "tcp" + cidr_blocks = ["0.0.0.0/0"] + }, + { + type = "ingress" + from_port = 80 + to_port = 80 + protocol = "tcp" + cidr_blocks = ["0.0.0.0/0"] + }, + { + type = "ingress" + from_port = 443 + to_port = 443 + protocol = "tcp" + cidr_blocks = ["0.0.0.0/0"] + } + ] + + context = module.this.context +} diff --git a/examples/complete/outputs.tf b/examples/complete/outputs.tf new file mode 100644 index 0000000..db9fd22 --- /dev/null +++ b/examples/complete/outputs.tf @@ -0,0 +1,109 @@ +output "public_subnet_cidrs" { + description = "Public subnet CIDRs" + value = module.subnets.public_subnet_cidrs +} + +output "private_subnet_cidrs" { + description = "Private subnet CIDRs" + value = module.subnets.private_subnet_cidrs +} + +output "vpc_cidr" { + description = "VPC CIDR" + value = module.vpc.vpc_cidr_block +} + +output "public_ips" { + description = "List of Public IPs of instances (or EIP)" + value = module.ec2_instance_group.public_ips +} + +output "private_ips" { + description = "Private IPs of instances" + value = module.ec2_instance_group.private_ips +} + +output "private_dns" { + description = "Private DNS records of instances" + value = module.ec2_instance_group.private_dns +} + +output "public_dns" { + value = module.ec2_instance_group.public_dns + description = "All public DNS records for the public interfaces and ENIs" +} + +output "ids" { + description = "Disambiguated IDs list" + value = module.ec2_instance_group.ids +} + +output "aws_key_pair_name" { + description = "Name of AWS key pair" + value = module.ec2_instance_group.aws_key_pair_name +} + +output "new_ssh_keypair_generated" { + value = module.ec2_instance_group.new_ssh_keypair_generated + description = "Was a new ssh_key_pair generated" +} + +output "ssh_key_pem_path" { + description = "Path where SSH key pair was created (if applicable)" + value = module.ec2_instance_group.ssh_key_pem_path +} + +output "security_group_ids" { + description = "ID on the new AWS Security Group associated with creating instance" + value = module.ec2_instance_group.security_group_ids +} + +output "role_names" { + description = "Names of AWS IAM Roles associated with creating instance" + value = module.ec2_instance_group.role_names +} + +output "alarm_ids" { + description = "CloudWatch Alarm IDs" + value = module.ec2_instance_group.alarm_ids +} + +output "eni_to_eip_map" { + description = "Map of ENI with EIP" + value = module.ec2_instance_group.eni_to_eip_map +} + +output "ebs_ids" { + description = "IDs of EBSs" + value = module.ec2_instance_group.ebs_ids +} + +output "primary_network_interface_ids" { + description = "IDs of the instance's primary network interface" + value = module.ec2_instance_group.primary_network_interface_ids +} + +output "eip_per_instance_count" { + value = module.ec2_instance_group.eip_per_instance_count + description = "Number of EIPs per instance" +} + +output "instance_count" { + value = module.ec2_instance_group.instance_count + description = "Total number of instances created" +} + +output "security_group_id" { + value = module.ec2_instance_group.security_group_id + description = "EC2 instances Security Group ID" +} + +output "security_group_arn" { + value = module.ec2_instance_group.security_group_arn + description = "EC2 instances Security Group ARN" +} + +output "security_group_name" { + value = module.ec2_instance_group.security_group_name + description = "EC2 instances Security Group name" +} diff --git a/examples/complete/variables.tf b/examples/complete/variables.tf new file mode 100644 index 0000000..e1cb788 --- /dev/null +++ b/examples/complete/variables.tf @@ -0,0 +1,59 @@ +variable "region" { + type = string + description = "AWS region" +} + +variable "availability_zones" { + type = list(string) + description = "List of availability zones" +} + +variable "generate_ssh_key_pair" { + type = bool + description = "If true, create a new key pair and save the pem for it to the current working directory" +} + +variable "associate_public_ip_address" { + type = bool + description = "Associate a public IP address with the instance" +} + +variable "assign_eip_address" { + type = bool + description = "Assign an Elastic IP address to the instance" +} + +variable "instance_type" { + type = string + description = "Type of the instance" +} + +variable "ami_owner" { + type = string + description = "Owner of the given AMI" +} + +variable "root_volume_type" { + type = string + description = "Type of root volume. Can be standard, gp2 or io1" +} + +variable "root_volume_size" { + type = number + description = "Size of the root volume in gigabytes" +} + +variable "delete_on_termination" { + type = bool + description = "Whether the volume should be destroyed on instance termination" +} + +variable "instance_count" { + type = number + description = "Count of ec2 instances to create" +} + +variable "ssh_public_key_path" { + type = string + description = "Path to SSH public key directory (e.g. `/secrets`)" +} diff --git a/examples/complete/versions.tf b/examples/complete/versions.tf new file mode 100644 index 0000000..d8dd1a4 --- /dev/null +++ b/examples/complete/versions.tf @@ -0,0 +1,10 @@ +terraform { + required_version = ">= 1.0" + + required_providers { + aws = { + source = "hashicorp/aws" + version = ">= 4.0" + } + } +} diff --git a/examples/main.tf b/examples/main.tf deleted file mode 100644 index ae8b7a3..0000000 --- a/examples/main.tf +++ /dev/null @@ -1,168 +0,0 @@ -data "aws_region" "default" {} - -data "aws_subnet" "default" { - id = "${data.aws_subnet_ids.all.ids[0]}" -} - -data "aws_vpc" "default" { - default = true -} - -data "aws_subnet_ids" "all" { - vpc_id = "${data.aws_vpc.default.id}" -} - -provider "aws" { - region = "us-east-1" -} - -data "aws_ami" "ubuntu" { - most_recent = true - - filter { - name = "name" - values = ["ubuntu/images/hvm-ssd/ubuntu-xenial-16.04-amd64-server-*"] - } - - filter { - name = "virtualization-type" - values = ["hvm"] - } - - owners = ["099720109477"] # Canonical -} - -module "zero_servers" { - source = "../" - - instance_count = "0" - ami = "${data.aws_ami.ubuntu.id}" - namespace = "cp" - stage = "prod" - name = "zero" - - create_default_security_group = "true" - region = "${data.aws_region.default.name}" - availability_zone = "${data.aws_subnet.default.availability_zone}" - subnet = "${data.aws_subnet.default.id}" - vpc_id = "${data.aws_vpc.default.id}" - generate_ssh_key_pair = "true" -} - -module "one_server" { - source = "../" - - instance_count = "1" - ami = "${data.aws_ami.ubuntu.id}" - namespace = "cp" - stage = "prod" - name = "one" - - create_default_security_group = "true" - region = "${data.aws_region.default.name}" - availability_zone = "${data.aws_subnet.default.availability_zone}" - subnet = "${data.aws_subnet.default.id}" - vpc_id = "${data.aws_vpc.default.id}" - additional_ips_count = "1" - generate_ssh_key_pair = "true" - instance_type = "m1.large" // Allows up to 3 ENI, the default t2.micro allows only 1 -} - -module "two_servers" { - source = "../" - - instance_count = "2" - ami = "${data.aws_ami.ubuntu.id}" - namespace = "cp" - stage = "prod" - name = "two" - - create_default_security_group = "true" - region = "${data.aws_region.default.name}" - availability_zone = "${data.aws_subnet.default.availability_zone}" - subnet = "${data.aws_subnet.default.id}" - vpc_id = "${data.aws_vpc.default.id}" - additional_ips_count = "1" - generate_ssh_key_pair = "true" - instance_type = "m1.large" // Allows up to 3 ENI, the default t2.micro allows only 1 -} - -output "public_dns" { - value = { - zero = "${module.zero_servers.public_dns}" - one = "${module.one_server.public_dns}" - two = "${module.two_servers.public_dns}" - } -} - -output "public_ips" { - value = { - zero = "${module.zero_servers.public_ips}" - one = "${module.one_server.public_ips}" - two = "${module.two_servers.public_ips}" - } -} - -output "instance_count" { - value = { - zero = "${module.zero_servers.instance_count}" - one = "${module.one_server.instance_count}" - two = "${module.two_servers.instance_count}" - } -} - -output "eni_to_eip_map" { - value = { - zero = "${module.zero_servers.eni_to_eip_map}" - one = "${module.one_server.eni_to_eip_map}" - two = "${module.two_servers.eni_to_eip_map}" - } -} - -output "eip_per_instance_count" { - value = { - zero = "${module.zero_servers.eip_per_instance_count}" - one = "${module.one_server.eip_per_instance_count}" - two = "${module.two_servers.eip_per_instance_count}" - } -} - -output "private_ips" { - value = { - zero = "${module.zero_servers.private_ips}" - one = "${module.one_server.private_ips}" - two = "${module.two_servers.private_ips}" - } -} - -output "private_dns" { - value = { - zero = "${module.zero_servers.private_dns}" - one = "${module.one_server.private_dns}" - two = "${module.two_servers.private_dns}" - } -} - -output "aws_key_pair_name" { - value = { - zero = "${module.zero_servers.aws_key_pair_name}" - one = "${module.one_server.aws_key_pair_name}" - two = "${module.two_servers.aws_key_pair_name}" - } -} - -output "alarm" { - value = { - zero = "${module.zero_servers.alarm_ids}" - one = "${module.one_server.alarm_ids}" - two = "${module.two_servers.alarm_ids}" - } -} - -output "ssh_key_pem_path" { - value = { - zero = "${module.zero_servers.ssh_key_pem_path}" - one = "${module.one_server.ssh_key_pem_path}" - two = "${module.two_servers.ssh_key_pem_path}" - } -} diff --git a/main.tf b/main.tf index 8872a5c..8a9f42a 100644 --- a/main.tf +++ b/main.tf @@ -1,18 +1,35 @@ locals { - instance_count = "${var.instance_enabled == "true" ? var.instance_count : 0}" - security_group_count = "${var.create_default_security_group == "true" ? 1 : 0}" - region = "${var.region != "" ? var.region : data.aws_region.default.name}" - root_iops = "${var.root_volume_type == "io1" ? var.root_iops : "0"}" - ebs_iops = "${var.ebs_volume_type == "io1" ? var.ebs_iops : "0"}" - availability_zone = "${var.availability_zone}" - root_volume_type = "${var.root_volume_type != "" ? var.root_volume_type : data.aws_ami.info.root_device_type}" - count_default_ips = "${var.associate_public_ip_address == "true" && var.assign_eip_address == "true" && var.instance_enabled == "true" && var.instance_count > 0 ? 1 : 0}" - ssh_key_pair_path = "${var.ssh_key_pair_path == "" ? path.cwd : var.ssh_key_pair_path }" + instance_count = module.this.enabled ? var.instance_count : 0 + region = var.region != "" ? var.region : data.aws_region.default.name + root_iops = var.root_volume_type == "io1" ? var.root_iops : 0 + ebs_iops = var.ebs_volume_type == "io1" ? var.ebs_iops : 0 + availability_zone = var.availability_zone + root_volume_type = var.root_volume_type != "" ? var.root_volume_type : data.aws_ami.info.root_device_type + count_default_ips = var.associate_public_ip_address && var.assign_eip_address && module.this.enabled ? var.instance_count : 0 + ssh_key_pair_path = var.ssh_key_pair_path == "" ? path.cwd : var.ssh_key_pair_path + security_group_enabled = module.this.enabled && var.security_group_enabled } -data "aws_region" "default" {} +locals { + public_ips = compact( + concat( + coalescelist(aws_eip.default[*].public_ip, aws_instance.default[*].public_ip), + coalescelist(aws_eip.additional[*].public_ip, [""]) + ) + ) + + ip_dns_list = split(",", replace(join(",", local.public_ips), ".", "-")) + + dns_names = formatlist( + "%v.${var.region == "us-east-1" ? "compute-1" : "${var.region}.compute"}.amazonaws.com", compact(local.ip_dns_list) + ) +} -data "aws_caller_identity" "default" {} +data "aws_region" "default" { +} + +data "aws_caller_identity" "default" { +} data "aws_iam_policy_document" "default" { statement { @@ -34,67 +51,75 @@ data "aws_iam_policy_document" "default" { data "aws_ami" "info" { filter { name = "image-id" - values = ["${var.ami}"] + values = [var.ami] } - owners = ["${var.ami_owner}"] + owners = [var.ami_owner] } -# Apply the terraform-terraform-label module for this resource module "label" { - source = "git::https://github.com/cloudposse/terraform-terraform-label.git?ref=tags/0.2.1" - namespace = "${var.namespace}" - stage = "${var.stage}" - name = "${var.name}" - attributes = "${var.attributes}" - delimiter = "${var.delimiter}" - tags = "${merge(map("AZ", "${local.availability_zone}"), var.tags)}" - enabled = "true" + source = "cloudposse/label/null" + version = "0.25.0" + tags = { AZ = local.availability_zone } + + context = module.this.context } resource "aws_iam_instance_profile" "default" { - count = "${signum(local.instance_count)}" - name = "${module.label.id}" - role = "${element(aws_iam_role.default.*.name, 0)}" + count = signum(local.instance_count) + name = module.label.id + role = join("", aws_iam_role.default[*].name) } resource "aws_iam_role" "default" { - count = "${signum(local.instance_count)}" - name = "${module.label.id}" - path = "/" - assume_role_policy = "${data.aws_iam_policy_document.default.json}" + count = signum(local.instance_count) + name = module.label.id + path = "/" + assume_role_policy = data.aws_iam_policy_document.default.json + permissions_boundary = length(var.permissions_boundary_arn) > 0 ? var.permissions_boundary_arn : null + tags = module.this.tags } resource "aws_instance" "default" { - count = "${local.instance_count}" - ami = "${data.aws_ami.info.id}" - availability_zone = "${local.availability_zone}" - instance_type = "${var.instance_type}" - ebs_optimized = "${var.ebs_optimized}" - disable_api_termination = "${var.disable_api_termination}" - user_data = "${var.user_data}" - iam_instance_profile = "${element(aws_iam_instance_profile.default.*.name, 0)}" - associate_public_ip_address = "${var.associate_public_ip_address}" - key_name = "${signum(length(var.ssh_key_pair)) == 1 ? var.ssh_key_pair : module.ssh_key_pair.key_name}" - subnet_id = "${var.subnet}" - monitoring = "${var.monitoring}" - private_ip = "${element(concat(var.private_ips, list("")), min(length(var.private_ips), count.index))}" - source_dest_check = "${var.source_dest_check}" - ipv6_address_count = "${var.ipv6_address_count}" - ipv6_addresses = "${var.ipv6_addresses}" - - vpc_security_group_ids = [ - "${compact(concat(list(var.create_default_security_group == "true" ? join("", aws_security_group.default.*.id) : ""), var.security_groups))}", - ] + #bridgecrew:skip=BC_AWS_GENERAL_31: Skipping `Ensure Instance Metadata Service Version 1 is not enabled` check until BridgeCrew supports conditional evaluation. See https://github.com/bridgecrewio/checkov/issues/793 + count = local.instance_count + ami = data.aws_ami.info.id + availability_zone = local.availability_zone + instance_type = var.instance_type + ebs_optimized = var.ebs_optimized + disable_api_termination = var.disable_api_termination + user_data = var.user_data + iam_instance_profile = join("", aws_iam_instance_profile.default[*].name) + associate_public_ip_address = var.associate_public_ip_address + key_name = signum(length(var.ssh_key_pair)) == 1 ? var.ssh_key_pair : module.ssh_key_pair.key_name + subnet_id = var.subnet + monitoring = var.monitoring + private_ip = concat(var.private_ips, [null])[min(length(var.private_ips), count.index)] + source_dest_check = var.source_dest_check + ipv6_address_count = var.ipv6_address_count < 0 ? null : var.ipv6_address_count + ipv6_addresses = length(var.ipv6_addresses) > 0 ? var.ipv6_addresses : null + vpc_security_group_ids = compact(concat(module.security_group[*].id, var.security_groups)) root_block_device { - volume_type = "${local.root_volume_type}" - volume_size = "${var.root_volume_size}" - iops = "${local.root_iops}" - delete_on_termination = "${var.delete_on_termination}" + volume_type = local.root_volume_type + volume_size = var.root_volume_size + iops = local.root_iops + delete_on_termination = var.delete_on_termination + encrypted = var.root_block_device_encrypted + kms_key_id = var.kms_key_id + } + + metadata_options { + http_endpoint = var.metadata_http_endpoint_enabled ? "enabled" : "disabled" + http_tokens = var.metadata_http_tokens_required ? "required" : "optional" } - tags = "${merge(module.label.tags, map("instance_index", "${count.index}"))}" + tags = merge( + module.label.tags, + { + instance_index = count.index + } + ) } ## @@ -102,34 +127,37 @@ resource "aws_instance" "default" { ## module "ssh_key_pair" { - source = "git::https://github.com/cloudposse/terraform-aws-key-pair.git?ref=tags/0.2.3" //upcoming release - namespace = "${var.namespace}" - stage = "${var.stage}" - name = "${var.name}" - ssh_public_key_path = "${local.ssh_key_pair_path}" + source = "cloudposse/key-pair/aws" + version = "0.19.0" + ssh_public_key_path = local.ssh_key_pair_path private_key_extension = ".pem" - generate_ssh_key = "${var.generate_ssh_key_pair}" + generate_ssh_key = var.generate_ssh_key_pair + + context = module.this.context } resource "aws_eip" "default" { - count = "${local.count_default_ips}" - network_interface = "${element(aws_instance.default.*.primary_network_interface_id, count.index)}" - vpc = "true" - depends_on = ["aws_instance.default"] + count = local.count_default_ips + network_interface = aws_instance.default[*].primary_network_interface_id[count.index] + vpc = true + depends_on = [aws_instance.default] + tags = module.this.tags } resource "aws_ebs_volume" "default" { - count = "${var.ebs_volume_count * local.instance_count}" - availability_zone = "${local.availability_zone}" - size = "${var.ebs_volume_size}" - iops = "${local.ebs_iops}" - type = "${var.ebs_volume_type}" - tags = "${module.label.tags}" + count = var.ebs_volume_count * local.instance_count + availability_zone = local.availability_zone + size = var.ebs_volume_size + iops = local.ebs_iops + type = var.ebs_volume_type + tags = module.label.tags + encrypted = var.ebs_volume_encrypted + kms_key_id = var.kms_key_id } resource "aws_volume_attachment" "default" { - count = "${signum(local.instance_count) == 1 ? var.ebs_volume_count * local.instance_count : 0 }" - device_name = "${element(slice(var.ebs_device_names, 0, floor(var.ebs_volume_count * local.instance_count / max(local.instance_count, 1))), count.index)}" - volume_id = "${element(aws_ebs_volume.default.*.id, count.index)}" - instance_id = "${element(aws_instance.default.*.id, count.index)}" + count = signum(local.instance_count) == 1 ? var.ebs_volume_count * local.instance_count : 0 + device_name = element(slice(var.ebs_device_names, 0, floor(var.ebs_volume_count * local.instance_count / max(local.instance_count, 1))), count.index) + volume_id = aws_ebs_volume.default[*].id[count.index] + instance_id = aws_instance.default[*].id[count.index] } diff --git a/outputs.tf b/outputs.tf index fa353b4..b066365 100644 --- a/outputs.tf +++ b/outputs.tf @@ -1,41 +1,40 @@ output "public_ips" { description = "List of Public IPs of instances (or EIP)" - value = "${distinct(compact(concat(aws_eip.default.*.public_ip,aws_instance.default.*.public_ip, aws_eip.additional.*.public_ip, list() )))}" + value = local.public_ips } output "private_ips" { description = "Private IPs of instances" - value = "${aws_instance.default.*.private_ip}" + value = aws_instance.default[*].private_ip } output "private_dns" { description = "Private DNS records of instances" - value = "${aws_instance.default.*.private_dns}" -} - -locals { - # Split/Join used here so that the replace can be used inbetween. - ip_dns_list = "${split(",", replace(join(",", distinct(compact(concat(aws_eip.default.*.public_ip,aws_instance.default.*.public_ip, aws_eip.additional.*.public_ip, list() )))), ".", "-"))}" - dns_names = "${formatlist("%v.${var.region == "us-east-1" ? "compute-1" : "${var.region}.compute"}.amazonaws.com", distinct(compact(local.ip_dns_list)))}" + value = aws_instance.default[*].private_dns } output "public_dns" { - value = "${local.dns_names}" + value = local.dns_names description = "All public DNS records for the public interfaces and ENIs" } output "ids" { description = "Disambiguated IDs list" - value = "${aws_instance.default.*.id}" + value = aws_instance.default[*].id +} + +output "name" { + description = "Instance(s) name" + value = module.label.id } output "aws_key_pair_name" { description = "Name of AWS key pair" - value = "${signum(length(var.ssh_key_pair)) == 1 ? var.ssh_key_pair : "${var.generate_ssh_key_pair == "true" ? module.ssh_key_pair.key_name : ""}"}" + value = signum(length(var.ssh_key_pair)) == 1 ? var.ssh_key_pair : var.generate_ssh_key_pair ? module.ssh_key_pair.key_name : "" } output "new_ssh_keypair_generated" { - value = "${signum(length(var.ssh_key_pair)) == 1 ? "false" : "true" }" + value = signum(length(var.ssh_key_pair)) == 1 ? false : true description = "Was a new ssh_key_pair generated" } @@ -46,45 +45,58 @@ output "ssh_key_pem_path" { output "security_group_ids" { description = "ID on the new AWS Security Group associated with creating instance" - value = "${compact(concat(list(var.create_default_security_group == "true" ? join("", aws_security_group.default.*.id) : ""), var.security_groups))}" + value = compact(concat(module.security_group[*].id, var.security_groups)) +} + +output "security_group_id" { + value = module.security_group.id + description = "EC2 instances Security Group ID" +} + +output "security_group_arn" { + value = module.security_group.arn + description = "EC2 instances Security Group ARN" +} + +output "security_group_name" { + value = module.security_group.name + description = "EC2 instances Security Group name" } output "role_names" { description = "Names of AWS IAM Roles associated with creating instance" - value = "${compact(aws_iam_role.default.*.name)}" + value = compact(aws_iam_role.default[*].name) } output "alarm_ids" { description = "CloudWatch Alarm IDs" - value = "${aws_cloudwatch_metric_alarm.default.*.id}" + value = aws_cloudwatch_metric_alarm.default[*].id } output "eni_to_eip_map" { description = "Map of ENI with EIP" - value = "${zipmap(aws_network_interface.additional.*.id, aws_eip.additional.*.public_ip)}" + value = zipmap( + aws_network_interface.additional[*].id, + aws_eip.additional[*].public_ip + ) } output "ebs_ids" { description = "IDs of EBSs" - value = "${aws_ebs_volume.default.*.id}" + value = aws_ebs_volume.default[*].id } output "primary_network_interface_ids" { description = "IDs of the instance's primary network interface" - value = "${aws_instance.default.*.primary_network_interface_id}" -} - -output "network_interface_ids" { - description = "IDs of the network interface that was created with the instance" - value = "${aws_instance.default.*.network_interface_id}" + value = aws_instance.default[*].primary_network_interface_id } output "eip_per_instance_count" { - value = "${local.count_default_ips + local.additional_ips_count}" + value = local.count_default_ips + local.additional_ips_count description = "Number of EIPs per instance." } output "instance_count" { - value = "${local.instance_count}" - description = "Total number of instances created." + value = local.instance_count + description = "Total number of instances created" } diff --git a/security_group.tf b/security_group.tf index 5456e67..cdb462b 100644 --- a/security_group.tf +++ b/security_group.tf @@ -1,31 +1,12 @@ -resource "aws_security_group" "default" { - count = "${local.security_group_count}" - name = "${module.label.id}" - vpc_id = "${var.vpc_id}" - description = "Instance default security group (only egress access is allowed)" - tags = "${module.label.tags}" +module "security_group" { + source = "cloudposse/security-group/aws" + version = "2.2.0" - lifecycle { - create_before_destroy = true - } -} - -resource "aws_security_group_rule" "egress" { - count = "${var.create_default_security_group == "true" ? 1 : 0}" - type = "egress" - from_port = 0 - to_port = 65535 - protocol = "-1" - cidr_blocks = ["0.0.0.0/0"] - security_group_id = "${aws_security_group.default.id}" -} + security_group_name = var.security_group_name + rules = var.security_group_rules + security_group_description = var.security_group_description + vpc_id = var.vpc_id -resource "aws_security_group_rule" "ingress" { - count = "${var.create_default_security_group == "true" ? length(compact(var.allowed_ports)) : 0}" - type = "ingress" - from_port = "${element(var.allowed_ports, count.index)}" - to_port = "${element(var.allowed_ports, count.index)}" - protocol = "tcp" - cidr_blocks = ["0.0.0.0/0"] - security_group_id = "${aws_security_group.default.id}" + enabled = local.security_group_enabled + context = module.this.context } diff --git a/test/.gitignore b/test/.gitignore new file mode 100644 index 0000000..442804a --- /dev/null +++ b/test/.gitignore @@ -0,0 +1 @@ +.test-harness diff --git a/test/Makefile b/test/Makefile new file mode 100644 index 0000000..17b2fe7 --- /dev/null +++ b/test/Makefile @@ -0,0 +1,43 @@ +TEST_HARNESS ?= https://github.com/cloudposse/test-harness.git +TEST_HARNESS_BRANCH ?= master +TEST_HARNESS_PATH = $(realpath .test-harness) +BATS_ARGS ?= --tap +BATS_LOG ?= test.log + +# Define a macro to run the tests +define RUN_TESTS +@echo "Running tests in $(1)" +@cd $(1) && bats $(BATS_ARGS) $(addsuffix .bats,$(addprefix $(TEST_HARNESS_PATH)/test/terraform/,$(TESTS))) +endef + +default: all + +-include Makefile.* + +## Provision the test-harnesss +.test-harness: + [ -d $@ ] || git clone --depth=1 -b $(TEST_HARNESS_BRANCH) $(TEST_HARNESS) $@ + +## Initialize the tests +init: .test-harness + +## Install all dependencies (OS specific) +deps:: + @exit 0 + +## Clean up the test harness +clean: + [ "$(TEST_HARNESS_PATH)" == "/" ] || rm -rf $(TEST_HARNESS_PATH) + +## Run all tests +all: module examples/complete + +## Run basic sanity checks against the module itself +module: export TESTS ?= installed lint get-modules module-pinning get-plugins provider-pinning validate terraform-docs input-descriptions output-descriptions +module: deps + $(call RUN_TESTS, ../) + +## Run tests against example +examples/complete: export TESTS ?= installed lint get-modules get-plugins validate +examples/complete: deps + $(call RUN_TESTS, ../$@) diff --git a/test/Makefile.alpine b/test/Makefile.alpine new file mode 100644 index 0000000..7925b18 --- /dev/null +++ b/test/Makefile.alpine @@ -0,0 +1,5 @@ +ifneq (,$(wildcard /sbin/apk)) +## Install all dependencies for alpine +deps:: init + @apk add --update terraform-docs@cloudposse json2hcl@cloudposse +endif diff --git a/test/src/.gitignore b/test/src/.gitignore new file mode 100644 index 0000000..31b0219 --- /dev/null +++ b/test/src/.gitignore @@ -0,0 +1,2 @@ +.gopath +vendor/ diff --git a/test/src/Makefile b/test/src/Makefile new file mode 100644 index 0000000..2707cd2 --- /dev/null +++ b/test/src/Makefile @@ -0,0 +1,30 @@ +export TF_CLI_ARGS_init ?= -get-plugins=true +export TERRAFORM_VERSION ?= $(shell curl -s https://checkpoint-api.hashicorp.com/v1/check/terraform | jq -r -M '.current_version' | cut -d. -f1-2) + +.DEFAULT_GOAL : all + +.PHONY: all +## Default target +all: test + +.PHONY : init +## Initialize tests +init: + @exit 0 + +.PHONY : test +## Run tests +test: init + go mod download + go test -v -timeout 60m -run TestExamplesComplete + +## Run tests in docker container +docker/test: + docker run --name terratest --rm -it -e AWS_ACCESS_KEY_ID -e AWS_SECRET_ACCESS_KEY -e AWS_SESSION_TOKEN -e GITHUB_TOKEN \ + -e PATH="/usr/local/terraform/$(TERRAFORM_VERSION)/bin:/go/bin:/usr/local/go/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" \ + -v $(CURDIR)/../../:/module/ cloudposse/test-harness:latest -C /module/test/src test + +.PHONY : clean +## Clean up files +clean: + rm -rf ../../examples/complete/*.tfstate* diff --git a/test/src/examples_complete_test.go b/test/src/examples_complete_test.go new file mode 100644 index 0000000..9cf30cf --- /dev/null +++ b/test/src/examples_complete_test.go @@ -0,0 +1,69 @@ +package test + +import ( + "math/rand" + "strconv" + "testing" + "time" + + "github.com/gruntwork-io/terratest/modules/terraform" + "github.com/stretchr/testify/assert" +) + +// Test the Terraform module in examples/complete using Terratest. +func TestExamplesComplete(t *testing.T) { + t.Parallel() + + rand.Seed(time.Now().UnixNano()) + + randId := strconv.Itoa(rand.Intn(100000)) + attributes := []string{randId} + + terraformOptions := &terraform.Options{ + // The path to where our Terraform code is located + TerraformDir: "../../examples/complete", + Upgrade: true, + // Variables to pass to our Terraform code using -var-file options + VarFiles: []string{"fixtures.us-west-1.tfvars"}, + Vars: map[string]interface{}{ + "attributes": attributes, + }, + } + + // At the end of the test, run `terraform destroy` to clean up any resources that were created + defer terraform.Destroy(t, terraformOptions) + + // This will run `terraform init` and `terraform apply` and fail the test if there are any errors + terraform.InitAndApply(t, terraformOptions) + + // Run `terraform output` to get the value of an output variable + vpcCidr := terraform.Output(t, terraformOptions, "vpc_cidr") + // Verify we're getting back the outputs we expect + assert.Equal(t, "172.16.0.0/16", vpcCidr) + + // Run `terraform output` to get the value of an output variable + privateSubnetCidrs := terraform.OutputList(t, terraformOptions, "private_subnet_cidrs") + // Verify we're getting back the outputs we expect + assert.Equal(t, []string{"172.16.0.0/18", "172.16.64.0/18"}, privateSubnetCidrs) + + // Run `terraform output` to get the value of an output variable + publicSubnetCidrs := terraform.OutputList(t, terraformOptions, "public_subnet_cidrs") + // Verify we're getting back the outputs we expect + assert.Equal(t, []string{"172.16.128.0/18", "172.16.192.0/18"}, publicSubnetCidrs) + + // Run `terraform output` to get the value of an output variable + securityGroupName := terraform.Output(t, terraformOptions, "security_group_name") + expectedSecurityGroupName := "eg-test-ec2-group-test-" + randId + // SG name is used as a prefix in this case because we use create_before_destroy here. + assert.Contains(t, securityGroupName, expectedSecurityGroupName, "Expected security_group_name to start with " + expectedSecurityGroupName) + + // Run `terraform output` to get the value of an output variable + securityGroupID := terraform.Output(t, terraformOptions, "security_group_id") + // Verify we're getting back the outputs we expect + assert.Contains(t, securityGroupID, "sg-", "SG ID should contains substring 'sg-'") + + // Run `terraform output` to get the value of an output variable + securityGroupARN := terraform.Output(t, terraformOptions, "security_group_arn") + // Verify we're getting back the outputs we expect + assert.Contains(t, securityGroupARN, "arn:aws:ec2", "SG ID should contains substring 'arn:aws:ec2'") +} diff --git a/test/src/go.mod b/test/src/go.mod new file mode 100644 index 0000000..2547828 --- /dev/null +++ b/test/src/go.mod @@ -0,0 +1,8 @@ +module github.com/cloudposse/terraform-aws-ec2-instance-group + +go 1.14 + +require ( + github.com/gruntwork-io/terratest v0.34.7 + github.com/stretchr/testify v1.5.1 +) diff --git a/test/src/go.sum b/test/src/go.sum new file mode 100644 index 0000000..a6dde9f --- /dev/null +++ b/test/src/go.sum @@ -0,0 +1,624 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU= +cloud.google.com/go v0.44.1/go.mod 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h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw= +sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o= +sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc= diff --git a/variables.tf b/variables.tf index 1b3d5c0..7c36592 100644 --- a/variables.tf +++ b/variables.tf @@ -1,246 +1,306 @@ variable "ssh_key_pair" { + type = string description = "SSH key pair to be provisioned on the instance" default = "" } variable "generate_ssh_key_pair" { + type = bool description = "If true, create a new key pair and save the pem for it to the current working directory" - default = "false" + default = false } variable "associate_public_ip_address" { + type = bool description = "Associate a public IP address with the instance" - default = "true" + default = false } variable "ssh_key_pair_path" { - description = "Path to where the generated key pairs will be created. Defaults to $${path.cwd}" + type = string + description = "Path to where the generated key pairs will be created. Defaults to $$${path.cwd}" default = "" } variable "assign_eip_address" { + type = bool description = "Assign an Elastic IP address to the instance" - default = "true" + default = true } variable "user_data" { + type = string description = "Instance user data. Do not pass gzip-compressed data via this argument" default = "" } variable "instance_type" { + type = string description = "The type of the instance" default = "t2.micro" } variable "vpc_id" { + type = string description = "The ID of the VPC that the instance security group belongs to" } -variable "security_groups" { - description = "List of Security Group IDs allowed to connect to the instance" - type = "list" - default = [] -} - -variable "allowed_ports" { - type = "list" - description = "List of allowed ingress ports" - default = [] +variable "security_group_enabled" { + type = bool + description = "Whether to create default Security Group for EC2 instances." + default = true } -variable "subnet" { - description = "VPC Subnet ID the instance is launched in" +variable "security_group_description" { + type = string + default = "EC2 instances Security Group" + description = "The Security Group description." } -variable "namespace" { - description = "Namespace (e.g. `cp` or `cloudposse`) - required for `terraform-terraform-label` module" -} - -variable "stage" { - description = "Stage (e.g. `prod`, `dev`, `staging` - required for `terraform-terraform-label` module" -} - -variable "name" { - description = "Name (e.g. `bastion` or `db`) - required for `terraform-terraform-label` module" +variable "security_group_name" { + type = list(string) + description = <<-EOT + The name to assign to the security group. Must be unique within the VPC. + If not provided, will be derived from the `null-label.context` passed in. + If `create_before_destroy` is true, will be used as a name prefix. + EOT + default = [] + validation { + condition = length(var.security_group_name) < 2 + error_message = "Only 1 security group name can be provided." + } } -variable "delimiter" { - default = "-" +variable "security_group_rules" { + type = list(any) + default = [] + description = <<-EOT + A list of maps of Security Group rules. + The values of map is fully complated with `aws_security_group_rule` resource. + To get more info see https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/security_group_rule . + EOT } -variable "attributes" { - description = "Additional attributes (e.g. `policy` or `role`)" - type = "list" +variable "security_groups" { + type = list(string) default = [] + description = "A list of Security Group IDs to associate with EC2 instances." } -variable "tags" { - description = "Additional tags" - type = "map" - default = {} +variable "subnet" { + type = string + description = "VPC Subnet ID the instance is launched in" } variable "region" { - default = "" + type = string description = "AWS Region the instance is launched in" } variable "availability_zone" { + type = string description = "Availability Zone the instance is launched in. If not set, will be launched in the first AZ of the region" default = "" } variable "ami" { - description = "The AMI to use for the instance." + type = string + description = "The AMI to use for the instance" } variable "ami_owner" { + type = string description = "Owner of the given AMI" } variable "ebs_optimized" { + type = bool description = "Launched EC2 instance will be EBS-optimized" - default = "false" + default = false } variable "disable_api_termination" { + type = bool description = "Enable EC2 Instance Termination Protection" - default = "false" + default = false } variable "monitoring" { + type = bool description = "Launched EC2 instance will have detailed monitoring enabled" - default = "true" + default = true } variable "private_ips" { - type = "list" + type = list(string) description = "Private IP address to associate with the instances in the VPC" default = [] } variable "source_dest_check" { + type = bool description = "Controls if traffic is routed to the instance when the destination address does not match the instance. Used for NAT or VPNs" - default = "true" + default = true } variable "ipv6_address_count" { + type = number description = "Number of IPv6 addresses to associate with the primary network interface. Amazon EC2 chooses the IPv6 addresses from the range of your subnet" - default = "0" + default = 0 } variable "ipv6_addresses" { - type = "list" + type = list(string) description = "List of IPv6 addresses from the range of the subnet to associate with the primary network interface" default = [] } variable "root_volume_type" { + type = string description = "Type of root volume. Can be standard, gp2 or io1" default = "gp2" } variable "root_volume_size" { + type = number description = "Size of the root volume in gigabytes" - default = "10" + default = 10 } variable "root_iops" { + type = number description = "Amount of provisioned IOPS. This must be set if root_volume_type is set to `io1`" - default = "0" + default = 0 } variable "ebs_device_names" { - type = "list" + type = list(string) description = "Name of the EBS device to mount" default = ["/dev/xvdb", "/dev/xvdc", "/dev/xvdd", "/dev/xvde", "/dev/xvdf", "/dev/xvdg", "/dev/xvdh", "/dev/xvdi", "/dev/xvdj", "/dev/xvdk", "/dev/xvdl", "/dev/xvdm", "/dev/xvdn", "/dev/xvdo", "/dev/xvdp", "/dev/xvdq", "/dev/xvdr", "/dev/xvds", "/dev/xvdt", "/dev/xvdu", "/dev/xvdv", "/dev/xvdw", "/dev/xvdx", "/dev/xvdy", "/dev/xvdz"] } variable "ebs_volume_type" { + type = string description = "The type of EBS volume. Can be standard, gp2 or io1" default = "gp2" } variable "ebs_volume_size" { + type = number description = "Size of the EBS volume in gigabytes" - default = "10" + default = 10 } variable "ebs_iops" { + type = number description = "Amount of provisioned IOPS. This must be set with a volume_type of io1" - default = "0" + default = 0 } variable "ebs_volume_count" { + type = number description = "Count of EBS volumes that will be attached to the instance" - default = "0" + default = 0 } variable "delete_on_termination" { + type = bool description = "Whether the volume should be destroyed on instance termination" - default = "true" -} - -variable "welcome_message" { - default = "" + default = true } variable "comparison_operator" { - description = "The arithmetic operation to use when comparing the specified Statistic and Threshold. Possible values are: GreaterThanOrEqualToThreshold, GreaterThanThreshold, LessThanThreshold, LessThanOrEqualToThreshold." + type = string + description = "The arithmetic operation to use when comparing the specified Statistic and Threshold. Possible values are: GreaterThanOrEqualToThreshold, GreaterThanThreshold, LessThanThreshold, LessThanOrEqualToThreshold" default = "GreaterThanOrEqualToThreshold" } variable "metric_name" { + type = string description = "The name for the alarm's associated metric. Allowed values can be found in https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/ec2-metricscollected.html" default = "StatusCheckFailed_Instance" } variable "evaluation_periods" { - description = "The number of periods over which data is compared to the specified threshold." - default = "5" + type = number + description = "The number of periods over which data is compared to the specified threshold" + default = 5 } variable "metric_namespace" { + type = string description = "The namespace for the alarm's associated metric. Allowed values can be found in https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/aws-namespaces.html" default = "AWS/EC2" } variable "applying_period" { + type = number description = "The period in seconds over which the specified statistic is applied" - default = "60" + default = 60 } variable "statistic_level" { + type = string description = "The statistic to apply to the alarm's associated metric. Allowed values are: SampleCount, Average, Sum, Minimum, Maximum" default = "Maximum" } variable "metric_threshold" { + type = number description = "The value against which the specified statistic is compared" - default = "1" + default = 1 } variable "default_alarm_action" { - default = "action/actions/AWS_EC2.InstanceId.Reboot/1.0" -} - -variable "create_default_security_group" { - description = "Create default Security Group with only Egress traffic allowed" - default = "true" -} - -variable "instance_enabled" { - description = "Flag to control the instance creation. Set to false if it is necessary to skip instance creation" - default = "true" + type = string + description = "Default alarm action" + default = "action/actions/AWS_EC2.InstanceId.Reboot/1.0" } variable "additional_ips_count" { + type = number description = "Count of additional EIPs" - default = "0" + default = 0 } variable "instance_count" { + type = number description = "Count of ec2 instances to create" - default = "1" + default = 1 +} + +variable "permissions_boundary_arn" { + type = string + description = "Policy ARN to attach to instance role as a permissions boundary" + default = "" +} + +variable "root_block_device_encrypted" { + type = bool + default = true + description = "Whether to encrypt the root block device" +} + +variable "metadata_http_tokens_required" { + type = bool + default = true + description = "Whether or not the metadata service requires session tokens, also referred to as Instance Metadata Service Version 2." +} + +variable "metadata_http_endpoint_enabled" { + type = bool + default = true + description = "Whether the metadata service is available" +} + +variable "kms_key_id" { + type = string + default = null + description = "KMS key ID used to encrypt EBS volume. When specifying kms_key_id, ebs_volume_encrypted needs to be set to true" +} + +variable "ebs_volume_encrypted" { + type = bool + description = "Size of the EBS volume in gigabytes" + default = true } diff --git a/versions.tf b/versions.tf new file mode 100644 index 0000000..ebead97 --- /dev/null +++ b/versions.tf @@ -0,0 +1,10 @@ +terraform { + required_version = ">= 1.0" + + required_providers { + aws = { + source = "hashicorp/aws" + version = ">= 2.0" + } + } +}