不尚贤,使民不争; 不贵难得之货,使民不为盗；不见可欲,使民心不乱.

官方Docker Action教程创建了一个最基本的Hello world脚本,并没有和Repo代码有任何交互. 但是如果是想要引用代码,引用Github环境变量怎么办?
仔细看这个Docker运行日志. 有惊奇的发现.

1
2
3
4

Run wxdlong/hello-action@v7
/usr/bin/docker run --name df7dc7a61e20181bb466a9f0ee3e0ddc3e675_091ef4 --label 0df7dc --workdir /github/workspace --rm -e INPUT_WHO-TO-GREET -e HOME -e GITHUB_REF -e GITHUB_SHA -e GITHUB_REPOSITORY -e GITHUB_ACTOR -e GITHUB_WORKFLOW -e GITHUB_HEAD_REF -e GITHUB_BASE_REF -e GITHUB_EVENT_NAME -e GITHUB_WORKSPACE -e GITHUB_ACTION -e GITHUB_EVENT_PATH -e RUNNER_OS -e RUNNER_TOOL_CACHE -e RUNNER_TEMP -e RUNNER_WORKSPACE -v "/var/run/docker.sock":"/var/run/docker.sock" -v "/home/runner/work/_temp/_github_home":"/github/home" -v "/home/runner/work/_temp/_github_workflow":"/github/workflow" -v "/home/runner/work/hello-action/hello-action":"/github/workspace" 0df7dc:7a61e20181bb466a9f0ee3e0ddc3e675  "wxdlong"
Hello wxdlong
 ::set-output name=time::Sat Sep 14 10:09:07 UTC 2019

映射工作区至容器内

/home/runner/work/_temp/_github_home: /github/home,并且设置容器内默认工作区. --workdir /github/workspace.这样的话,容器内部可以访问其它Action的内容.比如checkout出来的源码

传入各种环境变量

变量 | 含义 | 示例 – | – | – INPUT_WHO-TO-GREET | action定义的变量 | wxdlong HOME | HOME path | /github/home GITHUB_REF | | EMPTY GITHUB_SHA | git commit | 359f48e3252 GITHUB_REPOSITORY | repo name | wxdlong/hello-action GITHUB_ACTOR | repo owner | wxdlong GITHUB_WORKFLOW | workflow name | Hello Action GITHUB_HEAD_REF | git ref | EMPTY GITHUB_BASE_REF | | EMPTY GITHUB_REF | git ref | refs/heads/master GITHUB_EVENT_NAME | 事件名称 | push GITHUB_ACTION | action name | wxdlonghello-action GITHUB_EVENT_PATH | | /github/workflow/event.json RUNNER_OS | 运行的操作系统 | Linux RUNNER_TOOL_CACHE | | /opt/hostedtoolcache RUNNER_WORKSPACE | 运行空间 | /home/runner/work/hello-action

Docker Image

Action中image类型可以是Dockerfile,``

1
2
3
4
5

runs:
  using: 'docker'
  image: 'Dockerfile'
  args:
    - ${{ inputs.who-to-greet }}

引用

创建Docker容器Action: https://help.github.com/cn/articles/creating-a-docker-container-action