Node.js & Mongo DB (javascript-node-mongo)

Develop applications in Node.js and Mongo DB. Includes Node.js, eslint, and yarn in a container linked to a Mongo DB.

Options

Options Id	Description	Type	Default Value
imageVariant	Node.js version (use -bullseye variants on local arm64/Apple Silicon):	string	22-bookworm

This template references an image that was pre-built to automatically include needed devcontainer.json metadata.

Image: mcr.microsoft.com/devcontainers/javascript-node (source)
Applies devcontainer.json contents from image: Yes (source)

Using this template

This template creates two containers, one for Node.js and one for MongoDB. You will be connected to the Node.js container, and from within that container the MongoDB container will be available on on localhost port 27017 The MongoDB instance can be managed in VS Code via the automatically installed MongoDB extension. Database options can be configured in .devcontainer/docker-compose.yml and data is persisted in a volume called mongo-data.

It uses the mcr.microsoft.com/devcontainers/javascript-node image which includes git, eslint, zsh, Oh My Zsh!, a non-root vscode user with sudo access, and a set of common dependencies for development.

You also can connect to MongoDB from an external tool when connected to the Dev Contaner from a local tool by updating .devcontainer/devcontainer.json as follows:

"forwardPorts": [ "27017" ]

Adding another service

You can add other services to your .devcontainer/docker-compose.yml file as described in Docker's documentaiton. However, if you want anything running in this service to be available in the container on localhost, or want to forward the service locally, be sure to add this line to the service config:

# Runs the service on the same network as the database container, allows "forwardPorts" in devcontainer.json function.
network_mode: service:db

Using the forwardPorts property

By default, web frameworks and tools often only listen to localhost inside the container. As a result, we recommend using the forwardPorts property to make these ports available locally.

"forwardPorts": [9000]

The ports property in docker-compose.yml publishes rather than forwards the port. This will not work in a cloud environment like Codespaces and applications need to listen to * or 0.0.0.0 for the application to be accessible externally. Fortunately the forwardPorts property does not have this limitation.

Note: This file was auto-generated from the devcontainer-template.json. Add additional notes to a NOTES.md.