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docker-publish.yml
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name: ci
on:
push:
branches:
- "main"
tags:
- 'v*'
jobs:
build-image:
runs-on: ubuntu-latest
permissions:
contents: read
packages: write
id-token: write # needed for signing the images with GitHub OIDC Token
name: build-image
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 1
- name: Install Cosign
uses: sigstore/cosign-installer@v3
- name: Set up QEMU
uses: docker/setup-qemu-action@v3
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Login to GitHub Container Registry
uses: docker/login-action@v3
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- id: docker_meta
uses: docker/metadata-action@v5
with:
images: ghcr.io/${{ github.repository }}
- name: Build and Push container images
uses: docker/build-push-action@v5
id: build-and-push
with:
cache-from: type=gha
cache-to: type=gha,mode=max
context: .
platforms: linux/amd64
push: true
tags: ${{ steps.docker_meta.outputs.tags }}
- name: Sign the images with GitHub OIDC Token
env:
DIGEST: ${{ steps.build-and-push.outputs.digest }}
TAGS: ${{ steps.docker_meta.outputs.tags }}
run: |
images=""
for tag in ${TAGS}; do
images+="${tag}@${DIGEST} "
done
cosign sign --yes ${images}
- name: Verify the image
env:
DIGEST: ${{ steps.build-and-push.outputs.digest }}
IMAGE: ghcr.io/${{ github.repository }}
run: |
cosign verify ${IMAGE}@${DIGEST} \
--certificate-identity https://github.com/sheurich/coen/.github/workflows/docker-publish.yml@refs/heads/main \
--certificate-oidc-issuer https://token.actions.githubusercontent.com |
jq