ci: arm64 build and multi-arch container

.github/workflows/ci.yml

@@ -13,7 +13,14 @@ on:
 
 jobs:
   build-rock:
-    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        include:
+        - arch: 'amd64'
+          runner: ubuntu-22.04
+        - arch: 'arm64'
+          runner: ubuntu-22.04-arm
+    runs-on: ${{ matrix.runner }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -23,11 +30,18 @@ jobs:
         id: rockcraft
 
   build-snap:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+        - arch: 'amd64'
+          runner: ubuntu-22.04
+        - arch: 'arm64'
+          runner: ubuntu-22.04-arm
+    runs-on: ${{ matrix.runner }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
 
       - name: Build Snap Package
         uses: snapcore/action-build@v1
-        id: snapcraft
+        id: snapcraft

.github/workflows/registry-actions.yml

@@ -23,19 +23,26 @@ on:
 
 jobs:
   build-rock:
-    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        include:
+        - arch: 'amd64'
+          runner: ubuntu-22.04
+        - arch: 'arm64'
+          runner: ubuntu-22.04-arm
+    runs-on: ${{ matrix.runner }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
-
+          
       - name: Pack with Rockcraft
         uses: canonical/craft-actions/rockcraft-pack@main
         id: rockcraft
 
       - name: Upload Rock Artifact
         uses: actions/upload-artifact@v4
         with:
-          name: cups-rock
+          name: cups-rock-${{ matrix.arch }}
           path: ${{ steps.rockcraft.outputs.rock }}
 
   publish-rock:
@@ -49,7 +56,8 @@ jobs:
       - name: Download Rock Artifact
         uses: actions/download-artifact@v4
         with:
-          name: cups-rock
+          pattern: cups-rock-*
+          merge-multiple: true
 
       - name: Install Dependencies
         run: |
@@ -84,9 +92,21 @@ jobs:
         run: |
           IMAGE="$(yq '.name' rockcraft.yaml)"
           VERSION="$(yq '.version' rockcraft.yaml)"
-          ROCK="$(ls *.rock | tail -n 1)"
           ORG_NAME=$(echo "${ORG}" | tr '[:upper:]' '[:lower:]')
-          sudo rockcraft.skopeo --insecure-policy copy oci-archive:"${ROCK}" docker-daemon:"${ORG_NAME}/${IMAGE}:${VERSION}-edge"
+          # Upload each rock to the container registry
+          declare -a digests=()
+          for rock in *.rock; do
+            digest=$(rockcraft.skopeo --insecure-policy inspect "oci-archive:${rock}" --format "{{ .Digest }}")
+            digests+=($digest)
+            rockcraft.skopeo --insecure-policy copy oci-archive:${rock} docker-daemon:"${ORG_NAME}/${IMAGE}:${digest}"
+          done
+          # Create and upload a multi-arch manifest
+          args=("manifest" "create" "${multi_arch_image_name}")
+          for digest in "${digests[@]}"; do
+            args+=(--amend "${target_image}@${digest}")
+          done
+          docker "${args[@]}"
+          manifest=$(docker manifest push ${ORG_NAME}/${IMAGE}:${VERSION}-edge)
           # Push to Docker Hub
           # docker tag ${ORG_NAME}/${IMAGE}:${VERSION}-edge ${USERNAME}:${VERSION}-edge
           # docker push ${USERNAME}/${IMAGE}:${VERSION}-edge
@@ -107,9 +127,21 @@ jobs:
         run: |
             IMAGE="$(yq '.name' rockcraft.yaml)"
             VERSION="$(yq '.version' rockcraft.yaml)"
-            ROCK="$(ls *.rock | tail -n 1)"
             ORG_NAME=$(echo "${ORG}" | tr '[:upper:]' '[:lower:]')
-            sudo rockcraft.skopeo --insecure-policy copy oci-archive:"${ROCK}" docker-daemon:"${ORG_NAME}/${IMAGE}:${VERSION}-stable"
+            # Upload each rock to the container registry
+            declare -a digests=()
+            for rock in *.rock; do
+              digest=$(rockcraft.skopeo --insecure-policy inspect "oci-archive:${rock}" --format "{{ .Digest }}")
+              digests+=($digest)
+              rockcraft.skopeo --insecure-policy copy oci-archive:${rock} docker-daemon:"${ORG_NAME}/${IMAGE}:${digest}"
+            done
+            # Create and upload a multi-arch manifest
+            args=("manifest" "create" "${multi_arch_image_name}")
+            for digest in "${digests[@]}"; do
+              args+=(--amend "${target_image}@${digest}")
+            done
+            docker "${args[@]}"
+            manifest=$(docker manifest push ${ORG_NAME}/${IMAGE}:${VERSION}-stable)
             # Push to Docker Hub
             # docker tag ${ORG_NAME}/${IMAGE}:${VERSION}-stable ${USERNAME}:${VERSION}-stable
             # docker push ${USERNAME}/${IMAGE}:${VERSION}-stable