ibmi-mcp-server/.github/workflows/docker-multiplatform.yml at 40c6e588f9213c0a350aef63d05fbc1db4288e45 · IBM/ibmi-mcp-server · GitHub

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# ===============================================================
# Multiplatform Docker Build Workflow
# ===============================================================
#
# This workflow builds container images for multiple architectures:
#   - linux/amd64 (native on ubuntu-latest)
#   - linux/arm64 (native on ubuntu-24.04-arm)
#   - linux/ppc64le (QEMU emulation on ubuntu-latest)
#
# Pipeline:
#   1. Build platform images in parallel
#   2. Create multiplatform manifest
#
# Trigger: Only on version tags (v*)
#
# ===============================================================

name: Multiplatform Docker Build

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:

permissions:
  contents: read
  packages: write
  actions: read
  id-token: write

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  # ---------------------------------------------------------------
  # Build each platform in parallel
  # ---------------------------------------------------------------
  build:
    name: Build ${{ matrix.suffix }}
    environment: Release
    strategy:
      fail-fast: false
      matrix:
        include:
          - platform: linux/amd64
            runner: ubuntu-latest
            suffix: amd64
            cache_mode: max
          - platform: linux/arm64
            runner: ubuntu-24.04-arm
            suffix: arm64
            cache_mode: max
          - platform: linux/ppc64le
            runner: ubuntu-latest
            suffix: ppc64le
            qemu: true
            cache_mode: min

    runs-on: ${{ matrix.runner }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v5

      - name: Extract tag name
        id: tag
        run: |
          TAG=${GITHUB_REF#refs/tags/}
          echo "tag=$TAG" >> $GITHUB_OUTPUT

      - name: Set image name lowercase
        run: |
          IMAGE_NAME_LC=$(echo "${{ env.IMAGE_NAME }}" | tr '[:upper:]' '[:lower:]')
          echo "IMAGE_NAME_LC=${IMAGE_NAME_LC}" >> $GITHUB_ENV

      - name: Set up QEMU
        if: matrix.qemu
        uses: docker/setup-qemu-action@v3
        with:
          platforms: ${{ matrix.platform }}

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

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

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_LC }}
          tags: |
            type=raw,value=${{ matrix.suffix }}-${{ steps.tag.outputs.tag }}

      - name: Build and push
        id: build
        uses: docker/build-push-action@v6
        with:
          context: ./packages/server
          file: ./packages/server/Dockerfile
          platforms: ${{ matrix.platform }}
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha,scope=build-${{ matrix.suffix }}
          cache-to: type=gha,mode=${{ matrix.cache_mode }},scope=build-${{ matrix.suffix }}
          provenance: false

  # ---------------------------------------------------------------
  # Create multiplatform manifest
  # ---------------------------------------------------------------
  manifest:
    name: Create Manifest
    environment: Release
    needs: build
    runs-on: ubuntu-latest

    steps:
      - name: Extract tag name
        id: tag
        run: |
          TAG=${GITHUB_REF#refs/tags/}
          echo "tag=$TAG" >> $GITHUB_OUTPUT

      - name: Set image name lowercase
        run: |
          IMAGE_NAME_LC=$(echo "${{ env.IMAGE_NAME }}" | tr '[:upper:]' '[:lower:]')
          echo "IMAGE_NAME_LC=${IMAGE_NAME_LC}" >> $GITHUB_ENV

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

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

      - name: Create and push manifest
        run: |
          TAG=${{ steps.tag.outputs.tag }}
          IMAGE=${{ env.REGISTRY }}/${{ env.IMAGE_NAME_LC }}

          echo "Creating multiplatform manifest for tag: $TAG"

          # Platform-specific images
          IMAGES="${IMAGE}:amd64-${TAG} ${IMAGE}:arm64-${TAG} ${IMAGE}:ppc64le-${TAG}"

          docker buildx imagetools create \
            --tag "${IMAGE}:${TAG}" \
            --tag "${IMAGE}:latest" \
            $IMAGES

          echo "Manifest created successfully"

      - name: Inspect manifest
        run: |
          TAG=${{ steps.tag.outputs.tag }}
          IMAGE=${{ env.REGISTRY }}/${{ env.IMAGE_NAME_LC }}
          echo "Inspecting multiplatform manifest for tag: $TAG"
          docker buildx imagetools inspect "${IMAGE}:${TAG}"
          echo "Inspecting latest tag..."
          docker buildx imagetools inspect "${IMAGE}:latest"