Docker Compose Watch

README.md

Example for compose watch:

• "watch" requires a "build" section
• files created at runtime in the host get copied to the container
• files deleted in the host aren't deleted in the container
• files created in the container at build time aren't copied back to the host
• files created in the container at runtime aren't copied back to the host
• you'd still need a "volume" if the host must access files generated in the container

docker-compose.yml

name: example-watch
services:
  web:
    image: example-watch-web
    build:
      context: ./app/
      dockerfile_inline: |
        FROM node:lts
        WORKDIR /app
        COPY src/ ./src/
        COPY package.json watch.mjs ./
        RUN npm install
        CMD ["node", "./watch.mjs"]
    develop:
      watch:
        - path: app/
          target: /app/
          action: sync
          ignore:
            - node_modules
        - path: app/package.json
          action: rebuild

settings.json

{
  // VSCode settings for the Docker extension:
  // https://marketplace.visualstudio.com/items?itemName=ms-azuretools.vscode-docker
  "docker.commands.composeUp": "docker-compose ${configurationFile} watch",
  "docker.commands.composeUpSubset": "${composeCommand} ${profileList} ${configurationFile} watch ${detached} ${build} ${serviceList}",
  "docker.commands.composeDown": "${composeCommand} ${configurationFile} down --volumes --rmi local",
}