How to cache docker-compose build inside github-action

问题

Is there any way to cache docker-compose so that it will not build again and again? here is my action workflow file:

name: Github Action
on:
  push:
    branches:
      - staging
jobs:
  test:
    runs-on: ubuntu-18.04

    steps:
      - uses: actions/checkout@v1

      - name: Bootstrap app on Ubuntu
        uses: actions/setup-node@v1
        with:
          node-version: '12'


      - name: Install global packages
        run: npm install -g yarn prisma


      - name: Install project deps
        if: steps.cache-yarn.outputs.cache-hit != 'true'
        run: yarn


      - name: Build docker-compose
        run: docker-compose -f docker-compose.test.prisma.yml up --build -d

I want to cache the docker build step. I have tried using if: steps.cache-docker.outputs.cache-hit != 'true' then only build but didn't work.

回答1:

What you are referring to is called "docker layer caching", and it is not yet natively supported in GitHub Actions.

This is discussed extensively in several places, like:

• Cache docker image forum thread
• Cache a Docker image built in workflow forum thread
• Docker caching issue in actions/cache repository

As mentioned in the comments, there are some 3rd party actions that provide this functionality (like this one), but for such a core and fundamental feature, I would be cautious with anything that is not officially supported by GitHub itself.

回答2:

For those arriving here via Google, this now "supported". Or at least it is working: https://github.community/t/use-docker-layer-caching-with-docker-compose-build-not-just-docker/156049. The idea is to build the images using docker (and its cache) and then use docker compose to run (up) them.

来源：https://stackoverflow.com/questions/61491484/how-to-cache-docker-compose-build-inside-github-action