Docker Latest Image

A GitHub Action for obtaining the latest Image in a Repository.

- uses: shrink/actions-docker-latest-image@v1
  with:
    repository: 'docker.pkg.github.com/github/semantic/semantic'

Inputs

All inputs are required.

ID	Description	Example
`repository`	Docker Image Repository	`docker.pkg.github.com/github/semantic/semantic`

Outputs

ID	Description	Example
`image`	Full Image identifier	`docker.pkg.github.com/github/semantic/semantic:v1.4.1`
`tag`	Latest Image Tag	`v1.4.1`

Examples

Pass Image Between Jobs

Using docker/build-push-action to build a Docker Image and publish it to GitHub package Registry, and then pass the new Image to another job to be inspected.

jobs:
  build:
    runs-on: ubuntu-latest
    outputs:
      image: ${{ steps.latest.outputs.image }}
    steps:
      - uses: actions/checkout@v2
      - name: Build And Publish Image
        uses: docker/build-push-action@v1
        with:
          username: ${{ github.actor }}
          password: ${{ github.token }}
          registry: docker.pkg.github.com
          repository: ${{ github.repository }}/example
          tag_with_ref: true
          push: true
      - name: Get Latest Image
        id: latest
        uses: shrink/actions-docker-latest-image@v1
        with:
          repository: docker.pkg.github.com/${{ github.repository }}/example
  inspect:
    needs: build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v1
      - name: Login to GitHub Package Registry
        uses: docker/login-action@v1
        with:
          registry: docker.pkg.github.com
          username: ${{ github.repository_owner }}
          password: ${{ github.token }}
      - name: Inspect Image
        run: |
          docker pull ${{ needs.build.outputs.image }}
          docker image inspect ${{ needs.build.outputs.image }}