ci: downgrade ubuntu version and docker/Qemu version

Due to actions/runner-images#11471 we see similar problems when using ubuntu24.04 to do cross build for arm64 images. A workaround is to downgrade to ubuntu22.04 and use Qemu v7. Fixes confidential-containers#715 Signed-off-by: Xynnn007 <[email protected]>
Xynnn007 · Feb 21, 2025 · b9d4805 · b9d4805
1 parent 0bf0060
commit b9d4805
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diff --git a/.github/workflows/build-as-image.yml b/.github/workflows/build-as-image.yml
@@ -46,7 +46,7 @@ jobs:
         - target_arch: aarch64
           target_platform: linux/arm64
           build_platform: linux/amd64
-          instance: ubuntu-24.04
+          instance: ubuntu-22.04
           verifier: cca-verifier
     runs-on: ${{ matrix.instance }}
 

diff --git a/.github/workflows/build-kbs-image.yml b/.github/workflows/build-kbs-image.yml
@@ -57,7 +57,7 @@ jobs:
           - target_arch: aarch64
             target_platform: linux/arm64
             build_platform: linux/amd64
-            instance: ubuntu-24.04
+            instance: ubuntu-22.04
 
     runs-on: ${{ matrix.instance }}
 
@@ -68,6 +68,14 @@ jobs:
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v3
 
+    # TODO: remove this when https://github.com/actions/runner-images/issues/11471
+    # is fully resolved
+    - name: Set up QEMU v7 for Arm
+      if: matrix.target_arch == 'aarch64'
+      uses: docker/setup-qemu-action@v3
+      with:
+        image: tonistiigi/binfmt:qemu-v7.0.0-28
+
     - name: Login to GHCR Container Registry
       uses: docker/login-action@v3
       with: