mezoqax.blogg.se - Nodejs dockerfile

Help Docker know if your container is running properly (example always returns 200, but you get the idea).

This uses Dockerfile HEALTHCHECK with /healthz route to e.g.ĭocker compose exec -w /opt/node_app node npm install -save This allows adding packages in realtime without rebuilding images. This saves big on build time and keeps the container image lean. COPY in package.json and run npm install before COPY in your source code. vscode directory has the goods, thanks to Small image and quick re-builds.

Provides VSCode debug configs and tasks for tests.

Nodemon enables -inspect by default in Docker Compose. Opens the inspect port 9229 for using host-basedĭebugging like chrome tools or VS Code. Node.js in container when you change files on host. Docker Compose uses nodemon for development for auto-restarting Locally while running code in Linux container.

Edit locally while code runs in container.ĭocker Compose uses proper bind-mounts of host source code into container so you can edit.

Uses docker compose up for single-line build and run of local

It will re-run on build if you change package.json. Once on container build and you don't need to run npm on host or on each docker run. Problem of bind-mounting over it with local source code. This installs node_modules outside app root in the container image so local development won't run into a The goal is to have dev environment be as close to test and prod as possible while still giving all the Local Development Featuresĭocker Compose builds a local development image that is just like the production image except for theīelow dev-only features needed in the image. I also have more about everything Docker and Node.js in my 8 hour video course Docker for Node.js.Īlso Note, I have other resources on Docker and Kubernetes here. Note I have more advanced examples of Node.js Dockerfiles and Compose files in my DockerCon 2022 talk and repository. This tries to be a "good defaults" example of starting to use Node.js in Docker for local development and shipping to production with basic bells, whistles, and best practices. Node.js + Docker for Showing Good Defaults in Using Node.js with Docker