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docker-publish.yml
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name: Docker
# Based on GitHub actions starter workflow for Docker publishing:
# https://github.com/actions/starter-workflows/blob/main/ci/docker-publish.yml
# 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:
# every day at 00:15 UTC
- cron: '15 0 * * *'
push:
branches:
- 'main'
# Publish calver or pep440 tags as releases.
tags:
- '[0-9]+.[0-9]+.[0-9]+'
- '[0-9]+.[0-9]+.[0-9]+rc[0-9]+'
pull_request:
branches:
- 'main'
env:
# Use docker.io for Docker Hub if empty
REGISTRY: ghcr.io
# github.repository as <account>/<repo>
IMAGE_NAME: ${{ github.repository }}
# repository base URL
REPO_README: ${{ github.server_url }}/${{ github.repository }}/blob/main/README.rst
jobs:
build-linux:
name: Linux
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
platform:
# Distribute build across multiple runners, use a matrix strategy.
# https://docs.docker.com/build/ci/github-actions/multi-platform
- linux/amd64
- linux/arm/v7
- linux/arm64/v8
- linux/riscv64
- linux/ppc64le
- linux/s390x
steps:
# Free Disk Space on Ubuntu runners, clear up to 35 GB disk space
# https://github.com/jlumbroso/free-disk-space
- name: Free disk space
uses: jlumbroso/[email protected]
with:
# Tool cache: Saved 8.3GiB
tool-cache: true
# Android library: Saved 7.5GiB
android: true
# .NET runtime: Saved 1.6GiB
dotnet: true
# Haskell runtime: Saved 5.4GiB
haskell: true
# Large misc. packages: Saved 4.8GiB
large-packages: true
# Docker images: Saved 3.2GiB
docker-images: true
# Swap storage: Saved 4.0GiB
swap-storage: true
- name: Prepare GitHub runner environment
run: |
platform=${{ matrix.platform }}
echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
- name: Checkout repository
uses: actions/checkout@v4
- name: Get Recent Commit Authors
id: recent-commits-authors
run: |
jsonlist=$(git log --format="%an <%ae>" | \
sort -u | tr '\n' '\000' | \
jq -R -s -c 'split("\u0000")')
echo "jsonlist=$jsonlist" >> $GITHUB_OUTPUT
# Install QEMU static binaries for multi-arch image build
# https://github.com/docker/setup-qemu-action
# https://docs.docker.com/build/ci/github-actions/multi-platform
- name: Set up QEMU
uses: docker/setup-qemu-action@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: Login to registry ${{ env.REGISTRY }}
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 }}
labels: |
org.opencontainers.image.vendor=TiaC Systems Network
org.opencontainers.image.authors=${{ steps.recent-commits-authors.outputs.jsonlist }}
org.opencontainers.image.documentation=${{ env.REPO_README }}
# Build and push Docker image with Buildx (don't push on PR)
# https://github.com/docker/build-push-action
# https://docs.docker.com/build/ci/github-actions/cache
- name: Build and push Docker image
id: build-and-push
uses: docker/build-push-action@v6
with:
context: .
platforms: ${{ matrix.platform }}
labels: ${{ steps.meta.outputs.labels }}
outputs: type=image,name=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }},push-by-digest=true,name-canonical=true,push=true
cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache-${{ env.PLATFORM_PAIR }}
cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:buildcache-${{ env.PLATFORM_PAIR }},mode=max
- name: Export digest
run: |
mkdir -p /tmp/digests
digest="${{ steps.build-and-push.outputs.digest }}"
touch "/tmp/digests/${digest#sha256:}"
- name: Upload digest
uses: actions/upload-artifact@v4
with:
name: digests-${{ env.PLATFORM_PAIR }}
path: /tmp/digests/*
if-no-files-found: error
retention-days: 1
merge:
name: Merge all platforms
needs:
- build-linux
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:
# Free Disk Space on Ubuntu runners, clear up to 35 GB disk space
# https://github.com/jlumbroso/free-disk-space
- name: Free disk space
uses: jlumbroso/[email protected]
with:
# Tool cache: Saved 8.3GiB
tool-cache: true
# Android library: Saved 7.5GiB
android: true
# .NET runtime: Saved 1.6GiB
dotnet: true
# Haskell runtime: Saved 5.4GiB
haskell: true
# Large misc. packages: Saved 4.8GiB
large-packages: true
# Docker images: Saved 3.2GiB
docker-images: true
# Swap storage: Saved 4.0GiB
swap-storage: true
# Checkout again (also in this merge job), to get
# the list of all recent commit authors again.
- name: Checkout repository
uses: actions/checkout@v4
- name: Get Recent Commit Authors
id: recent-commits-authors
run: |
jsonlist=$(git log --format="%an <%ae>" | \
sort -u | tr '\n' '\000' | \
jq -R -s -c 'split("\u0000")')
echo "jsonlist=$jsonlist" >> $GITHUB_OUTPUT
- name: Download digests
uses: actions/download-artifact@v4
with:
path: /tmp/digests
pattern: digests-*
merge-multiple: true
# 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: Login to registry ${{ env.REGISTRY }}
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 }}
labels: |
org.opencontainers.image.vendor=TiaC Systems Network
org.opencontainers.image.authors=${{ steps.recent-commits-authors.outputs.jsonlist }}
org.opencontainers.image.documentation=${{ env.REPO_README }}
- name: Create manifest list and push
working-directory: /tmp/digests
run: |
docker buildx imagetools create \
$(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
$(printf '${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@sha256:%s ' *)
- name: Inspect image
run: |
docker buildx imagetools inspect \
${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.meta.outputs.version }}