name: Docker Build and Push
on:
push:
branches: [ main ]
tags: [ 'v*' ]
pull_request:
branches: [ main ]
env:
REGISTRY: ghcr.io
IMAGE_NAME: ${{ github.repository }}
jobs:
build-and-push:
runs-on: ubuntu-latest
permissions:
contents: read
packages: write
id-token: write # Required for artifact attestation
attestations: write # Required for creating attestations
steps:
- name: Checkout repository
uses: actions/checkout@v5
- name: Log in to Container Registry
if: github.event_name != 'pull_request'
uses: docker/login-action@v3.5.0
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3.11.1
- name: Extract metadata (tags, labels) for Docker
id: meta
uses: docker/metadata-action@v5.8.0
with:
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
tags: |
# Set latest tag for default branch
type=ref,event=branch
type=ref,event=pr
# Git tag as Docker tag
type=semver,pattern={{version}}
type=semver,pattern={{major}}.{{minor}}
type=semver,pattern={{major}}
# Latest tag for main branch
type=raw,value=latest,enable={{is_default_branch}}
- name: Build and push Docker image
id: build
uses: docker/build-push-action@v6.18.0
with:
context: .
platforms: linux/amd64,linux/arm64
push: ${{ github.event_name != 'pull_request' }}
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}
cache-from: type=gha
cache-to: type=gha,mode=max
- name: Generate artifact attestation
if: github.event_name != 'pull_request'
uses: actions/attest-build-provenance@v3.0.0
with:
subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
subject-digest: ${{ steps.build.outputs.digest }}
push-to-registry: true