go-microvm/.github/workflows/builder.yaml at 937dcddbdf7d8656f379b8debc5a410977e346ff · stacklok/go-microvm · GitHub

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# SPDX-FileCopyrightText: Copyright 2025 Stacklok, Inc.
# SPDX-License-Identifier: Apache-2.0

name: Builder Image

on:
  push:
    branches:
      - main
    paths:
      - 'images/builder/**'
      - 'versions.env'
    tags:
      - 'v*'
  workflow_dispatch:

permissions:
  contents: read
  packages: write

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ghcr.io/stacklok/propolis-builder

jobs:
  build:
    name: Build (${{ matrix.arch }})
    runs-on: ${{ matrix.runner }}
    strategy:
      matrix:
        include:
          - arch: amd64
            platform: linux/amd64
            runner: ubuntu-latest
          - arch: arm64
            platform: linux/arm64
            runner: ubuntu-24.04-arm
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Source versions.env
        run: |
          source versions.env
          echo "LIBKRUN_VERSION=${LIBKRUN_VERSION}" >> "$GITHUB_ENV"
          echo "LIBKRUNFW_VERSION=${LIBKRUNFW_VERSION}" >> "$GITHUB_ENV"

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to ghcr.io
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push (per-arch)
        id: build
        uses: docker/build-push-action@v6
        with:
          context: images/builder
          file: images/builder/Containerfile
          platforms: ${{ matrix.platform }}
          push: true
          build-args: |
            LIBKRUN_VERSION=${{ env.LIBKRUN_VERSION }}
            LIBKRUNFW_VERSION=${{ env.LIBKRUNFW_VERSION }}
          tags: |
            ${{ env.IMAGE_NAME }}:${{ env.LIBKRUN_VERSION }}-${{ matrix.arch }}
          cache-from: type=gha,scope=builder-${{ matrix.arch }}
          cache-to: type=gha,scope=builder-${{ matrix.arch }},mode=max

  manifest:
    name: Create multi-arch manifest
    runs-on: ubuntu-latest
    needs: build
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Source versions.env
        run: |
          source versions.env
          echo "LIBKRUN_VERSION=${LIBKRUN_VERSION}" >> "$GITHUB_ENV"

      - name: Login to ghcr.io
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Create and push manifest
        run: |
          docker manifest create ${{ env.IMAGE_NAME }}:${{ env.LIBKRUN_VERSION }} \
            ${{ env.IMAGE_NAME }}:${{ env.LIBKRUN_VERSION }}-amd64 \
            ${{ env.IMAGE_NAME }}:${{ env.LIBKRUN_VERSION }}-arm64
          docker manifest push ${{ env.IMAGE_NAME }}:${{ env.LIBKRUN_VERSION }}

          docker manifest create ${{ env.IMAGE_NAME }}:latest \
            ${{ env.IMAGE_NAME }}:${{ env.LIBKRUN_VERSION }}-amd64 \
            ${{ env.IMAGE_NAME }}:${{ env.LIBKRUN_VERSION }}-arm64
          docker manifest push ${{ env.IMAGE_NAME }}:latest