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[ci] docker

[ci] docker #13

name: Docker
# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.
on:
# schedule:
# - cron: "26 21 * * *"
push:
branches: ["main", "oidc-groups"]
# Publish semver tags as releases.
tags: ["v*.*.*"]
pull_request:
branches: ["main"]
workflow_dispatch:
env:
# Use docker.io for Docker Hub if empty
REGISTRY: ghcr.io
# github.repository as <account>/<repo>
# IMAGE_NAME: ${{ github.repository }}
BASE_IMAGE_NAME: ${{ github.repository }}-base
jobs:
build:
strategy:
max-parallel: 1
matrix:
include:
- image_name: ${{ github.repository }}-base
dockerfile: Dockerfile.base
- image_name: ${{ github.repository }}
dockerfile: Dockerfile
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
- name: Set up QEMU
uses: docker/setup-qemu-action@v3
- name: Setup 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: ${{ env.REGISTRY }}/${{ matrix.image_name }}
tags: |
type=schedule
type=ref,event=branch
type=ref,event=tag
type=ref,event=pr
type=sha
- name: Set base image tag
id: base_image
run: |
echo "::set-output name=name::${BASE_IMAGE_NAME,,}"
if [[ "$GITHUB_REF" == "refs/tags/"* ]]; then
echo "::set-output name=tag::${GITHUB_REF#refs/tags/}"
elif [[ "$GITHUB_REF" == "refs/heads/"* ]]; then
echo "::set-output name=tag::sha-${GITHUB_SHA::7}"
fi
# 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@v5
with:
context: .
file: ${{ matrix.dockerfile }}
build-args: |
BASE_IMG=${{ env.REGISTRY }}/${{ steps.base_image.outputs.name }}:${{ steps.base_image.outputs.tag }}
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
# Sign the resulting Docker image digest except on PRs.
# This will only write to the public Rekor transparency log when the Docker
# repository is public to avoid leaking data. If you would like to publish
# transparency data even for private images, pass --force to cosign below.
# 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}