integration-tests.yml

name: Integration Tests

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

concurrency:
  group: integration-${{ github.head_ref || github.ref }}
  cancel-in-progress: true

env:
  BINK_IMAGES: >-
    ghcr.io/bootc-dev/bink/cluster:latest
    ghcr.io/bootc-dev/bink/node:v1.35-fedora-44-disk
    ghcr.io/bootc-dev/bink/dns:latest
  EXTERNAL_IMAGES: >-
    docker.io/library/registry:2
    docker.io/library/haproxy:lts-alpine
    quay.io/libpod/busybox:latest

jobs:
  integration-tests:
    runs-on: ubuntu-latest
    timeout-minutes: 120

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Configure kernel for nested containers
        run: |
          # Unload all AppArmor profiles from the kernel.
          # Stopping the service alone doesn't unload them - the passt profile
          # blocks remount operations needed for passt's self-sandboxing.
          sudo aa-teardown 2>/dev/null || true
          # Allow unprivileged user namespace creation (needed by passt inside containers)
          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: |
          # Re-apply after apt-get which may upgrade udev and reset device permissions
          sudo chmod 666 /dev/kvm
          ls -la /dev/kvm

      - name: Configure Podman
        run: |
          podman --version
          # Configure containers.conf BEFORE starting the podman socket
          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
          # Ensure subuid/subgid for root (needed for userns=auto)
          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-integration-${{ 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
        with:
          path: /tmp/podman-image-cache
          key: podman-images-v2-integration-${{ steps.digests.outputs.hash }}

      - name: Run integration tests
        run: sudo make test-integration TEST_PROCS=2
        timeout-minutes: 90
        env:
          CONTAINER_HOST: unix:///run/podman/podman.sock

      - name: Collect logs
        if: failure()
        run: .github/collect-logs.sh

      - name: Upload logs
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: test-logs
          path: /tmp/bink-logs/

      - name: Cleanup test clusters
        if: always()
        run: |
          sudo podman ps -a --filter "name=k8s-test-bink" --format '{{.Names}}' | \
            xargs -r sudo podman rm -f 2>/dev/null || true
          sudo podman volume prune -f 2>/dev/null || true