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Docker

Docker #168

name: Docker
on:
schedule:
- cron: '38 9 * * *'
push:
branches: [ "main" ]
# Publish semver tags as releases.
tags: [ 'v*.*.*' ]
pull_request:
branches: [ "main" ]
env:
REGISTRY: ghcr.io
IMAGE_NAME: ${{ github.repository }}
jobs:
build:
runs-on: ubuntu-latest
permissions:
contents: read
packages: write
# This is used to complete the identity challenge
# with sigstore/fulcio when running outside of PRs.
id-token: write
steps:
- name: Checkout repository
uses: actions/checkout@v4
# Install the cosign tool except on PR
# https://github.com/sigstore/cosign-installer
- name: Install cosign
if: github.event_name != 'pull_request'
uses: sigstore/cosign-installer@v3
# Set up BuildKit Docker container builder to be able to build
# multi-platform images and export cache
# https://github.com/docker/setup-buildx-action
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
# Login against a Docker registry except on PR
# https://github.com/docker/login-action
- name: Log into registry ${{ env.REGISTRY }}
if: github.event_name != 'pull_request'
uses: docker/login-action@v3
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
# Extract metadata (tags, labels) for Docker
# https://github.com/docker/metadata-action
- name: Extract Docker metadata
id: meta
uses: docker/metadata-action@v5
with:
images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
tags: |
type=ref,event=branch
type=ref,event=pr
type=semver,pattern={{version}}
type=semver,pattern={{major}}.{{minor}}
# Build and push Docker image with Buildx (don't push on PR)
# https://github.com/docker/build-push-action
- name: Build and push Docker image
id: build-and-push
uses: docker/build-push-action@v6
with:
context: .
file: docker/Dockerfile
target: app-prod
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
# Sign the resulting Docker image digest except on PRs.
# https://github.com/sigstore/cosign
- name: Sign the published Docker image
if: ${{ github.event_name != 'pull_request' }}
env:
# https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
TAGS: ${{ steps.meta.outputs.tags }}
DIGEST: ${{ steps.build-and-push.outputs.digest }}
# This step uses the identity token to provision an ephemeral certificate
# against the sigstore community Fulcio instance.
run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}