Use setup-bink action for composefs integration tests

Replace inline CI setup steps with the shared setup-bink composite
action to avoid duplication across workflow files.

Assisted-by: Claude Opus 4.6 (1M context)
Signed-off-by: Alice Frosi <afrosi@redhat.com>

Author: alicefr

.github/workflows/integration-tests-composefs.yml

@@ -25,106 +25,12 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
-      - name: Configure kernel for nested containers
-        run: |
-          sudo aa-teardown 2>/dev/null || true
-          sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0
-          sudo sysctl -w net.ipv6.conf.all.disable_ipv6=1
-          sudo sysctl -w net.ipv6.conf.default.disable_ipv6=1
-
-      - name: Enable KSM (Kernel Same-page Merging)
-        run: |
-          sudo sh -c 'echo 1 > /sys/kernel/mm/ksm/run'
-          sudo sh -c 'echo 5000 > /sys/kernel/mm/ksm/pages_to_scan'
-          cat /sys/kernel/mm/ksm/run
-
-      - name: Set up Go
-        uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-          cache: true
-
-      - name: Install system dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y \
-            podman \
-            libgpgme-dev \
-            libbtrfs-dev \
-            libdevmapper-dev \
-            pkg-config
-
-      - name: Set up KVM
-        run: |
-          sudo chmod 666 /dev/kvm
-          ls -la /dev/kvm
-
-      - name: Configure Podman
-        run: |
-          podman --version
-          sudo mkdir -p /etc/containers
-          echo '{"defaultAction":"SCMP_ACT_ALLOW"}' | sudo tee /etc/containers/seccomp.json
-          printf '[containers]\napparmor_profile = "unconfined"\nseccomp_profile = "/etc/containers/seccomp.json"\n' | sudo tee /etc/containers/containers.conf
-          grep -q '^root:' /etc/subuid || echo 'root:100000:65536' | sudo tee -a /etc/subuid
-          grep -q '^root:' /etc/subgid || echo 'root:100000:65536' | sudo tee -a /etc/subgid
-          sudo systemctl start podman.socket
-          sudo podman info --format '{{.Store.GraphRoot}}'
-
-      - name: Build bink binary
-        run: sudo make build-bink
-
-      - name: Verify prerequisites
-        run: |
-          test -f ./bink
-          sudo podman images --format "table {{.Repository}}:{{.Tag}}\t{{.Size}}"
-          df -h /
-          free -h
-
-      - name: Get image digests
-        id: digests
-        run: |
-          ALL_DIGESTS=""
-          for img in $BINK_IMAGES $EXTERNAL_IMAGES; do
-            digest=$(skopeo inspect --no-creds "docker://${img}" --format '{{.Digest}}')
-            echo "${img}: ${digest}"
-            ALL_DIGESTS="${ALL_DIGESTS}${digest}"
-          done
-          echo "hash=$(echo -n "${ALL_DIGESTS}" | sha256sum | cut -d' ' -f1)" >> "$GITHUB_OUTPUT"
-
-      - name: Restore cached images
-        id: image-cache
-        uses: actions/cache/restore@v4
-        with:
-          path: /tmp/podman-image-cache
-          key: podman-images-v2-composefs-${{ steps.digests.outputs.hash }}
-
-      - name: Load cached images
-        if: steps.image-cache.outputs.cache-hit == 'true'
-        run: |
-          for f in /tmp/podman-image-cache/*.tar; do
-            sudo podman load -i "$f"
-          done
-          sudo podman images --format "table {{.Repository}}:{{.Tag}}\t{{.Size}}"
-
-      - name: Pre-pull container images
-        if: steps.image-cache.outputs.cache-hit != 'true'
-        run: |
-          mkdir -p /tmp/podman-image-cache
-          for img in $BINK_IMAGES $EXTERNAL_IMAGES; do
-            sudo podman pull "$img"
-            name=$(echo "$img" | sed 's|[/:]|_|g')
-            sudo podman save -o "/tmp/podman-image-cache/${name}.tar" "$img"
-          done
-          sudo chown -R $(id -u):$(id -g) /tmp/podman-image-cache
-
-      - name: Save image cache
-        if: steps.image-cache.outputs.cache-hit != 'true'
-        uses: actions/cache/save@v4
+      - name: Setup bink
+        uses: ./.github/actions/setup-bink
         with:
-          path: /tmp/podman-image-cache
-          key: podman-images-v2-composefs-${{ steps.digests.outputs.hash }}
+          cache-key-prefix: composefs
 
       - name: Run composefs integration tests
         run: sudo make test-integration-composefs
@@ -139,7 +45,7 @@ jobs:
 
       - name: Upload logs
         if: failure()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: test-logs-composefs
           path: /tmp/bink-logs/