8000 converted steps to a CloudFormation Template · dacdo/aws-lambda-ddns-function@12977bd · GitHub
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converted steps to a CloudFormation Template
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‎ddns.template

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{
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"AWSTemplateFormatVersion": "2010-09-09",
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"Description": "Buiding a Dynamic DNS for Route 53 using Cloudwatch Events and Lambda based on https://github.com/awslabs/aws-lambda-ddns-function",
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"Parameters": {
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"LambdaBucketName": {
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"Description": "Name of S3 Bucket for where Lambda function zip files are uploaded to",
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"Type": "String",
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"MinLength": "3"
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}
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},
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"Resources": {
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"ddnslambdarole": {
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"Type": "AWS::IAM::Role",
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"Properties": {
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"AssumeRolePolicyDocument": {
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"Version": "2012-10-17",
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"Statement": [
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{
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"Sid": "",
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"Effect": "Allow",
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"Principal": {
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"Service": "lambda.amazonaws.com"
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},
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"Action": "sts:AssumeRole"
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}
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]
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},
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"RoleName": "ddns-lambda-role",
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"Policies": [
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{
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"PolicyName": "ddns-lambda-role",
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"PolicyDocument": {
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"Version": "2012-10-17",
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"Statement": [
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{
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"Effect": "Allow",
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"Action": "ec2:Describe*",
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"Resource": "*"
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},
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{
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"Effect": "Allow",
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"Action": [
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"dynamodb:*"
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],
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"Resource": "*"
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},
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{
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"Effect": "Allow",
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"Action": [
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"logs:CreateLogGroup",
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"logs:CreateLogStream",
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"logs:PutLogEvents"
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],
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"Resource": "*"
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},
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{
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"Effect": "Allow",
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"Action": [
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"route53:*"
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],
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"Resource": [
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"*"
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]
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}
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]
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}
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}
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]
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}
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},
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"ddnslambda": {
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"Type": "AWS::Lambda::Function",
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"Properties": {
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"Handler": "union.lambda_handler",
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"FunctionName": "ddns_lambda",
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"Description": "Create A and PTR records for Private Hosted Zone for EC2 instance launches",
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"Role": {
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"Fn::GetAtt": [
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"ddnslambdarole",
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"Arn"
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]
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},
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"Code": {
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"S3Bucket": {
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"Ref": "LambdaBucketName"
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},
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"S3Key": "union.py.zip"
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},
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"Runtime": "python2.7",
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"Timeout": "30"
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}
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},
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"DdnsRule": {
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"Type": "AWS::Events::Rule",
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"Properties": {
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"Description": "trigger whenever CloudWatch detects a change to the state of an EC2 instance",
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"Name": "ec2_lambda_ddns_rule",
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"EventPattern": {
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"source": [
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"aws.ec2"
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],
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"detail-type": [
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"EC2 Instance State-change Notification"
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],
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"detail": {
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"state": [
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"running",
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"shutting-down",
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"stopped"
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]
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}
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},
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"State": "ENABLED",
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"Targets": [
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{
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"Arn": {
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"Fn::GetAtt": [
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"ddnslambda",
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"Arn"
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]
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},
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"Id": "TargetFunctionV1"
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}
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]
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}
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},
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"PermissionForEventsToInvokeLambda": {
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"Type": "AWS::Lambda::Permission",
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"Properties": {
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"FunctionName": {
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"Ref": "ddnslambda"
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},
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"Action": "lambda:InvokeFunction",
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"Principal": "events.amazonaws.com",
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"SourceArn": {
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"Fn::GetAtt": [
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"DdnsRule",
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"Arn"
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]
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}
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}
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}
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},
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"Outputs": {}
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}

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