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Build multiarch image correctly #2

Build multiarch image correctly

Build multiarch image correctly #2

Workflow file for this run

name: Publish
on:
push:
branches:
- main
pull_request:
branches:
- main
env:
REGISTRY: ghcr.io
IMAGE_NAME: ${{ github.repository }}
jobs:
build:
strategy:
matrix:
arch: [amd64, arm64]
include:
- arch: amd64
runner: ubuntu-latest
platform: linux/amd64
- arch: arm64
runner: ubuntu-24.04-arm
platform: linux/arm64
runs-on: ${{ matrix.runner }}
permissions:
contents: read
packages: write
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Setup Docker buildx
uses: docker/setup-buildx-action@v3
- 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 }}
- name: Build and push Docker image
id: build-and-push
uses: docker/build-push-action@v6
with:
push: ${{ github.event_name != 'pull_request' }}
tags: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sha-${{ github.ref }}-${{ matrix.arch }}
platforms: matrix.platform
cache-from: type=gha
cache-to: type=gha,mode=max
merge_manifests:
runs-on: ubuntu-latest
needs: build
steps:
- name: Log in to GitHub Container Registry
uses: docker/login-action@v3
with:
registry: ${{ env.REGISTRY }}
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Create and push multi-arch manifest
run: |
docker manifest create ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref }} \
--amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sha-${{ github.ref }}-amd64 \
--amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:sha-${{ github.ref }}-arm64
docker manifest push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref }}
# Optionally tag 'latest' on main
if [[ "${GITHUB_REF}" == "refs/heads/main" ]]; then
docker manifest create ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest \
--amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref }}-amd64 \
--amend ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref }}-arm64
docker manifest push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
fi