GitHub Container Registry (GHCR)是GitHub提供的一项服务，允许用户在GitHub上托管和分发Docker容器镜像。GHCR与GitHub Actions紧密集成，使得开发者可以轻松地自动化构建、测试和部署容器化应用程序

ghcr(github container repository)

• https://github.com/features/packages

1.create ghcr token

• https://github.com/settings/tokens/new

1.1勾选权限
勾选 write:packages 和 read:packages ，repo 会自动选中，创建 Token

2.login && push

2.1login
export PAT=xxxxx    //token
echo $PAT | docker login ghcr.io --username xxx --password-stdin

2.2tag
docker tag centos:centos8.4.2105  ghcr.io/xxx/centos:8.4

2.3push
docker push ghcr.io/xxx/centos:8.4

注意：xxx githu账户

3.ghcr privilege

• https://github.com/xxx?tab=packages

private -> public

centos -> package settings -> Danger Zone -> change packer visibility -> 输入镜像名字(centos)确认

docker pull ghcr.io/xxx/centos:8.4