准备
请在github的设置页面上创建一个token，并确保有以下的权限：
- repo
- read:packages
- write:packages
请保存好该token，因为github将隐藏该值
在github的仓库的secrets设置页面(例：https://github.com/{your_username}/{your_repository_name}/settings/secrets/actions)里创建一个名为GHCR_PAT的secrets
创建GitHub Action文件
在.github/workflow中创建一个build-and-publish.yml:
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| name: Build and Publish
on:
push:
branches: [ master ]
jobs:
build-and-push-docker-image:
name: Build Docker image and push to repositories
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v2
- name: Set up Docker Buildx
id: buildx
uses: docker/setup-buildx-action@v1
- name: Login to Github Packages
uses: docker/login-action@v1
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GHCR_PAT }}
- name: Build image and push to GitHub Container Registry
uses: docker/build-push-action@v2
id: docker_build
with:
context: .
tags: |
# 将usernmae和repository改成你自己的github账号和仓库名
ghcr.io/{usernmae}/{repository}:${{ github.sha }}
# 当且只有运行在master分支时才需要推送到github容器仓库
push: ${{ github.ref == 'refs/heads/master' }}
- name: Image digest
run: echo ${{ steps.docker_build.outputs.digest }}
|
默认推送的镜像是私有，想要公开，可以在
https://github.com/users/{your_username}/packages/container/{your_repository_name}/settings下面的Danger Zone中的Change package visibility设置成public还是private。
参考资料
- How to build and push Docker image with GitHub actions?
- Hoteler
