docker-cli-action

Playing with Docker and github actionsm trying to answer what would be the best way to interact with docker within a github actions.

using the github provided "docker/moby" cli.

in a workflow:

   steps:
    - name: 'docker version simple'
      run: docker version

Good:

• simplest

Bad:

• you don't control the version
• the version is weird (3.0.8???)

using the docker official docker image

in a workflow:

    steps:
    - name: 'docker version simple'
      uses: docker://docker:19.03.4
      with:
        args: docker version

Good:

• already shipped today
• you control the version

Bad:

• it's not a github action

using a custom github action

in a workflow:

    - name: 'docker version'
      uses: jeanlaurent/docker-cli-action@master
      with:
        docker: version

Notes:

• jeanlaurent/docker-cli-action should be replaced with docker/docker-cli-action or something like that.
• master could be replace with the exact cli version (tbc)
• TODO: We should also expose the outputs for people to wire that in in github action.

Good:

• you control the version
• it integrates nicely with the github action mecanism

Bad:

• This needs to be updated with every engine release.