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GitHub Action

push-to-ghcr

v2

push-to-ghcr

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push-to-ghcr

This action simplifies pushes of Docker images ot ghcr.io repository

Installation

Copy and paste the following snippet into your .yml file.

 
              
- name: push-to-ghcr

              
  uses: macbre/push-to-ghcr@v2
Learn more about this action in macbre/push-to-ghcr

Choose a version

push-to-ghcr

This action simplifies pushes of Docker images to ghcr.io repository.

  • On each release event (releases named vx.y.z) your image will be tagged with x.y.z
  • On each push event your image will be tagged with latest

How to use it?

Create a new GitHub Actions workflow as follows:

name: Build and publish a Docker image to ghcr.io
on:

  # publish on releases (tagged as "x.y.z" - "v" prefix is removed)
  release:
    types: [ published ]

  # publish on pushes to the main branch (tagged as "master")
  push:
    branches:
      - master

jobs:
  docker_publish:
    runs-on: "ubuntu-20.04"

    steps:
      - uses: actions/checkout@v2

      # https://github.com/marketplace/actions/push-to-ghcr
      - name: Build and publish a Docker image for ${{ github.repository }}
        uses: macbre/push-to-ghcr@v2
        with:
          image_name: ${{ github.repository }}
          github_token: ${{ secrets.GITHUB_TOKEN }}

This action assumes that your Dockerfile is in the root directory of your repository.

Labels and build args

The image that is pushed is labelled with org.label-schema and org.opencontainers schema. For instance:

{
  "org.label-schema.build-date": "2021-07-01T14:28:46Z",
  "org.label-schema.vcs-ref": "6f51d3d7bb7d46959a26594cb2b807573e34c546",
  "org.label-schema.vcs-url": "https://github.com/macbre/push-to-ghcr.git",
  "org.opencontainers.image.created": "2021-07-01T14:28:46Z",
  "org.opencontainers.image.revision": "6f51d3d7bb7d46959a26594cb2b807573e34c546",
  "org.opencontainers.image.source": "https://github.com/macbre/push-to-ghcr.git"
}

Additonally, BUILD_DATE and GITHUB_SHA build args are set resulting with these env variables being present in the container:

BUILD_DATE=2021-07-01T12:52:03Z
GITHUB_SHA=26b095f37cdf56a632aa2235345d4174b26e1d66