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# https://docs.github.com/en/packages/managing-github-packages-using-github-actions-workflows/publishing-and-installing-a-package-with-github-actions#publishing-a-package-using-an-action
name: Create and publish a Docker image
on:
push:
branches: ['master']
tags: 'v*'
workflow_dispatch:
env:
REGISTRY: ghcr.io
IMAGE_NAME: ${{ github.repository }}
jobs:
build-and-push-image:
runs-on: ubuntu-latest
permissions:
attestations: write
contents: read
id-token: write
packages: write
steps:
- name: Log in to the Container registry
uses: docker/login-action@e92390c5fb421da1463c202d546fed0ec5c39f20 # v3.10
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Extract metadata (tags, labels) for Docker
id: meta
uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5.5.1
with:
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
flavor: latest=true
tags: |
type=semver,pattern={{version}}
type=ref,event=branch
- name: Build and push Docker image
id: push
uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0 # v5.3.0
with:
push: true
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}
- name: Attest
uses: actions/attest-build-provenance@v1
with:
subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
subject-digest: ${{ steps.push.outputs.digest }}
push-to-registry: false
- name: Delete oldest Docker images
uses: actions/delete-package-versions@v5
with:
package-name: 'linkchecker'
package-type: 'container'
min-versions-to-keep: 20
delete-only-untagged-versions: 'true'
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