ci: Utilize native arm64 linux runners

.github/workflows/build-image-test.yaml

@@ -11,9 +11,19 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ubuntu-latest]
-        arch: [amd64, arm64]
+        arch:
+        - amd64
+        - arm64
+        include:
+        - os-name: Ubuntu x64
+          os: ubuntu-latest
+          arch: amd64
 
+        - os-name: Ubuntu ARM
+          os: ubuntu-24.04-arm
+          arch: arm64
+
+    name: ${{ matrix.os-name }}
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
@@ -33,21 +43,17 @@ jobs:
           tools/*.sh
 
     - name: Set IMAGE environment variable
+      if: steps.changed-files-specific.outputs.any_changed == 'true'
       # Lowercase the org/repo name to allow for workflow to run in forks,
       # which owners have uppercase letters in username
       run: >-
         echo "IMAGE=ghcr.io/${GITHUB_REPOSITORY@L}:${{ env.IMAGE_TAG }}"
         >> $GITHUB_ENV
-    - name: Set up QEMU
-      if: matrix.os != 'ubuntu-latest' || matrix.arch != 'amd64'
-      # yamllint disable-line rule:line-length
-      uses: docker/setup-qemu-action@53851d14592bedcffcf25ea515637cff71ef929a  # v3.3.0
-      with:
-        platforms: arm64
 
     - name: Set up Docker Buildx
       # yamllint disable-line rule:line-length
       uses: docker/setup-buildx-action@6524bf65af31da8d45b59e8c27de4bd072b392f5  # v3.8.0
+      if: steps.changed-files-specific.outputs.any_changed == 'true'
 
     - name: Build if Dockerfile changed
       if: steps.changed-files-specific.outputs.any_changed == 'true'
@@ -57,9 +63,6 @@ jobs:
         context: .
         build-args: |
           INSTALL_ALL=true
-        # yamllint disable-line rule:line-length
-        platforms: >-  # Only one allowed here, see https://github.com/docker/buildx/issues/59#issuecomment-1433097926
-          linux/${{ matrix.arch }}
         push: false
         load: true
         tags: ${{ env.IMAGE }}
@@ -68,13 +71,27 @@ jobs:
         secrets: |
           "github_token=${{ secrets.GITHUB_TOKEN }}"
 
+    - name: Setup Container Structure Tests
+      if: steps.changed-files-specific.outputs.any_changed == 'true'
+      env:
+        # yamllint disable-line rule:line-length
+        # renovate: datasource=github-releases depName=container-structure-test lookupName=GoogleContainerTools/container-structure-test
+        CST_VERSION: 1.19.3
+      run: >-
+        curl -L "
+        https://github.com/GoogleContainerTools/container-structure-test/
+        releases/download/v${CST_VERSION}/
+        container-structure-test-linux-${{ matrix.arch }}
+        " > container-structure-test
+        && chmod +x container-structure-test
+        && mv container-structure-test /usr/bin/
+
     - name: Run structure tests
       if: steps.changed-files-specific.outputs.any_changed == 'true'
-      # yamllint disable-line rule:line-length
-      uses: plexsystems/container-structure-test-action@c0a028aa96e8e82ae35be556040340cbb3e280ca  # v0.3.0
-      with:
-        image: ${{ env.IMAGE }}
-        config: .github/.container-structure-test-config.yaml
+      run: >-
+        container-structure-test test
+        -c .github/.spacelift-runners-container-structure-test-config.yaml
+        -i ${{ env.IMAGE }}
 
     - name: Dive - check image for waste files
       if: steps.changed-files-specific.outputs.any_changed == 'true'
@@ -91,7 +108,6 @@ jobs:
       if: >-
         steps.changed-files-specific.outputs.any_changed == 'true'
         && matrix.os == 'ubuntu-latest'
-        && matrix.arch == 'amd64'
       # yamllint disable-line rule:line-length
       uses: docker/build-push-action@67a2d409c0a876cbe6b11854e3e25193efe4e62d  # v6.12.0
       with:

.github/workflows/build-image.yaml

@@ -16,9 +16,6 @@ jobs:
     steps:
     - name: Checkout code
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
-    - name: Set up QEMU
-      # yamllint disable-line rule:line-length
-      uses: docker/setup-qemu-action@53851d14592bedcffcf25ea515637cff71ef929a  # v3.3.0
     - name: Set up Docker Buildx
       # yamllint disable-line rule:line-length
       uses: docker/setup-buildx-action@6524bf65af31da8d45b59e8c27de4bd072b392f5  # v3.8.0