Simple test with docker compose watch.
- Docker compose v2.22 or later.
Run docker-compose up --build to start the backend service. You can also add the -d flag if you don't wish to keep docker-compose up attached to the terminal's session.
Run docker compose watch to start listening to file changes. Any file that changes inside the src folder will be copied over to the container and will have ts-node-dev automatically restart the backend app (similar to what would happen when running npm start directly). Any changes made to the package.json file will trigger a container rebuild.