[build] add arm64 image build

Author: capcom6

.github/workflows/docker-build.yml

@@ -15,61 +15,146 @@ on:
       app-version:
         value: ${{ jobs.build.outputs.app-version }}
 
+env:
+  DOCKERHUB_REPO: capcom6/${{ inputs.app-name }}
+  GHCR_REPO: ghcr.io/${{ github.repository }}
+
 jobs:
   build:
     name: Docker image
     runs-on: ubuntu-latest
-    if: github.actor != 'dependabot[bot]' # skip on dependabot because it's not allowed to access secrets
+    strategy:
+      fail-fast: false
+      matrix:
+        platform:
+          - linux/amd64
+          - linux/arm64
     permissions:
       packages: write
     outputs:
       app-version: ${{ steps.meta.outputs.version }}
+
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
+      - name: Prepare
+        run: |
+          platform=${{ matrix.platform }}
+          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
 
       - name: Docker meta
         id: meta
         uses: docker/metadata-action@v5
         with:
           images: |
-            capcom6/${{ inputs.app-name }}
-            ghcr.io/${{ github.repository }}
-          tags: |
-            type=ref,event=branch
-            type=ref,event=pr
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=semver,pattern={{major}}
+            ${{ env.DOCKERHUB_REPO }}
+            ${{ env.GHCR_REPO }}
 
       - name: Log into Docker Hub
         uses: docker/login-action@v3
+        if: github.actor != 'dependabot[bot]'
         with:
           username: ${{ secrets.username }}
           password: ${{ secrets.password }}
 
       - name: Login to Container registry
         uses: docker/login-action@v3
+        if: github.actor != 'dependabot[bot]'
         with:
           registry: ghcr.io
-          username: ${{ github.actor }}
+          username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Set APP_VERSION env
         run: echo APP_VERSION=$(echo ${GITHUB_REF} | rev | cut -d'/' -f 1 | rev ) >> ${GITHUB_ENV}
       - name: Set APP_RELEASE env
         run: echo APP_RELEASE=$(( ($(date +%s) - $(date -d "2022-06-15" +%s)) / 86400 )) >> ${GITHUB_ENV}
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Build and push Docker image
-        uses: docker/build-push-action@v5
+        id: build
+        uses: docker/build-push-action@v6
         with:
           file: build/package/Dockerfile
+          platforms: ${{ matrix.platform }}
           build-args: |
             APP=${{ inputs.app-name }}
             APP_VERSION=${{ env.APP_VERSION }}
             APP_RELEASE_ID=${{ env.APP_RELEASE }}
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
+          push: ${{ github.actor != 'dependabot[bot]' }}
           labels: ${{ steps.meta.outputs.labels }}
-          # cache-from: type=gha
-          # cache-to: type=gha,mode=max
+          outputs: type=image,"name=${{ env.DOCKERHUB_REPO }},${{ env.GHCR_REPO }}",push-by-digest=true,name-canonical=true,push=true
+
+      - name: Export digest
+        run: |
+          mkdir -p ${{ runner.temp }}/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "${{ runner.temp }}/digests/${digest#sha256:}"
+
+      - name: Upload digest
+        uses: actions/upload-artifact@v4
+        with:
+          name: digests-${{ env.PLATFORM_PAIR }}
+          path: ${{ runner.temp }}/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: ${{ runner.temp }}/digests
+          pattern: digests-*
+          merge-multiple: true
+
+      - name: Log into Docker Hub
+        uses: docker/login-action@v3
+        if: github.actor != 'dependabot[bot]'
+        with:
+          username: ${{ secrets.username }}
+          password: ${{ secrets.password }}
+
+      - name: Login to Container registry
+        uses: docker/login-action@v3
+        if: github.actor != 'dependabot[bot]'
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ${{ env.DOCKERHUB_REPO }}
+            ${{ env.GHCR_REPO }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+
+      - name: Create manifest list and push
+        working-directory: ${{ runner.temp }}/digests
+        run: |
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+            $(printf '${{ env.DOCKERHUB_REPO }}@sha256:%s ' *)
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+            $(printf '${{ env.GHCR_REPO }}@sha256:%s ' *)
+
+      - name: Inspect image
+        run: |
+          docker buildx imagetools inspect ${{ env.DOCKERHUB_REPO }}:${{ steps.meta.outputs.version }}
+          docker buildx imagetools inspect ${{ env.GHCR_REPO }}:${{ steps.meta.outputs.version }}

build/package/Dockerfile

@@ -29,7 +29,7 @@ RUN go generate ./...
 RUN CGO_ENABLED=0 go build -a -installsuffix cgo -ldflags="-w -s -X github.com/android-sms-gateway/server/internal/version.AppVersion=${APP_VERSION} -X github.com/android-sms-gateway/server/internal/version.AppRelease=${APP_RELEASE_ID}" -o app ./cmd/${APP}/main.go
 
 # Moving the binary to the 'final Image' to make it smaller
-FROM alpine:3 as prod
+FROM alpine:3 AS prod
 
 WORKDIR /app