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Create multi-platform container image #6

Create multi-platform container image

Create multi-platform container image #6

Workflow file for this run

# See https://docs.docker.com/build/ci/github-actions/multi-platform/ for docs
name: Create multi-platform container image
on:
workflow_dispatch:
inputs:
version-tag:
description: The image tag to build for
required: true
type: string
concurrency:
group: ${{ inputs.version-tag }}
cancel-in-progress: true
env:
REGISTRY_IMAGE: ghcr.io/snok/container-retention-policy
jobs:
build:
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
platform:
- linux/amd64
- linux/arm64
include:
- platform: linux/amd64
arch: amd64
target_dir: x86_64-unknown-linux-musl
- platform: linux/arm64
arch: arm64
target_dir: aarch64-unknown-linux-musl
steps:
- name: Prepare
run: |
platform="${{ matrix.platform }}"
echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
- uses: actions/checkout@v4
- uses: docker/setup-qemu-action@v3
- uses: docker/setup-buildx-action@v3
- uses: docker/login-action@v3
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Docker meta
id: meta
uses: docker/metadata-action@v5
with:
images: ${{ env.REGISTRY_IMAGE }}
tags: ${{ inputs.version-tag }}
- name: Build and push by digest
id: build
uses: docker/build-push-action@v6
with:
context: .
platforms: ${{ matrix.platform }}
labels: ${{ steps.meta.outputs.labels }}
outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true
- name: Export digest
run: |
mkdir -p /tmp/digests
digest="${{ steps.build.outputs.digest }}"
touch "/tmp/digests/${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:
runs-on: ubuntu-latest
needs:
- build
steps:
- name: Download digests
uses: actions/download-artifact@v4
with:
path: /tmp/digests
pattern: digests-*
merge-multiple: true
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- uses: docker/login-action@v3
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Docker meta
id: meta
uses: docker/metadata-action@v5
with:
images: ${{ env.REGISTRY_IMAGE }}
tags: ${{ inputs.version-tag }}
- 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_IMAGE }}@sha256:%s ' *)
- name: Inspect image
run: docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }}