Added a github workflow for running examples as integration tests

.github/workflows/integration-test.yml

@@ -0,0 +1,62 @@
+name: Integration Tests
+
+on:
+  push:
+    branches: [main, ci_cd]
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+env:
+  CI_IMAGE: "paritytech/ci-unified:bullseye-1.88.0-2025-06-27-v202507112050"
+
+jobs:
+  smoldot-docker-test:
+    name: Smoldot Docker Test
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: wasm32-unknown-unknown
+          components: rust-src
+
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y protobuf-compiler libclang-dev
+
+      - name: Rust cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: true
+          cache-all-crates: true
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: examples/package.json
+
+      - name: Install just
+        run: cargo install just --locked || true
+
+      - name: Download zombienet
+        run: |
+          wget -q "https://github.com/paritytech/zombienet/releases/download/v1.3.133/zombienet-linux-x64"
+          chmod +x zombienet-linux-x64
+          echo "ZOMBIENET_BINARY=$GITHUB_WORKSPACE/zombienet-linux-x64" >> $GITHUB_ENV
+
+      - name: Run smoldot workflow test
+        working-directory: examples
+        run: just run-authorize-and-store-smoldot-docker

examples/justfile

@@ -88,7 +88,28 @@ bulletin-solo-zombienet-start:
     mkdir -p {{ PID_DIR }}
 
     echo "⚡ Starting Bulletin chain with zombienet..."
-    POLKADOT_BULLETIN_BINARY_PATH=../target/release/polkadot-bulletin-chain ../$(ls ../zombienet-*-*) -p native spawn ../zombienet/bulletin-polkadot-local.toml > /tmp/zombienet.log 2>&1 &
+
+    # Find zombienet binary (use env var if set, otherwise search)
+    if [ -n "$ZOMBIENET_BINARY" ]; then
+        ZOMBIENET_BIN="$ZOMBIENET_BINARY"
+    else
+        ZOMBIENET_BIN=$(ls ../zombienet-*-* 2>/dev/null | head -n 1)
+    fi
+
+    if [ -z "$ZOMBIENET_BIN" ] || [ ! -f "$ZOMBIENET_BIN" ]; then
+        echo "❌ Error: Zombienet binary not found"
+        echo "   Tried: $ZOMBIENET_BIN"
+        echo "   Set ZOMBIENET_BINARY environment variable or ensure zombienet-* exists in parent directory"
+        exit 1
+    fi
+
+    echo "   Using zombienet: $ZOMBIENET_BIN"
+
+    # Get absolute paths for bulletin binary and config
+    BULLETIN_BINARY=$(cd .. && pwd)/target/release/polkadot-bulletin-chain
+    ZOMBIENET_CONFIG=$(cd .. && pwd)/zombienet/bulletin-polkadot-local.toml
+
+    POLKADOT_BULLETIN_BINARY_PATH=$BULLETIN_BINARY $ZOMBIENET_BIN -p native spawn $ZOMBIENET_CONFIG > /tmp/zombienet.log 2>&1 &
     ZOMBIENET_PID=$!
     echo $ZOMBIENET_PID > {{ PID_DIR }}/zombienet.pid
     echo "   Zombienet PID: $ZOMBIENET_PID"
@@ -261,8 +282,17 @@ ipfs-docker-start: _check-docker
     # Pull latest kubo image if not present
     docker pull ipfs/kubo:latest
 
+    # Determine network mode based on OS
+    if [[ "$OSTYPE" == "darwin"* ]]; then
+        # macOS - use port mapping
+        NETWORK_ARGS="-p 4001:4001 -p 8080:8080 -p 5001:5001"
+    else
+        # Linux (including CI) - use host networking for direct access
+        NETWORK_ARGS="--network host"
+    fi
+
     # Start Docker container
-    docker run -d --name ipfs-node -v ipfs-data:/data/ipfs -p 4001:4001 -p 8080:8080 -p 5001:5001 ipfs/kubo:latest
+    docker run -d --name ipfs-node -v ipfs-data:/data/ipfs $NETWORK_ARGS ipfs/kubo:latest
     echo "   Container: ipfs-node"
     echo "   Waiting for container to start..."
     sleep 5
@@ -283,9 +313,9 @@ ipfs-docker-connect:
         PROTOCOL="dns4"
         DOCKER_HOST="host.docker.internal"
     else
-        # Linux - use ip4/172.17.0.1
+        # Linux (with host networking) - use ip4/127.0.0.1
         PROTOCOL="ip4"
-        DOCKER_HOST="172.17.0.1"
+        DOCKER_HOST="127.0.0.1"
     fi
 
     echo "   Using Docker host: /$PROTOCOL/$DOCKER_HOST"
@@ -331,6 +361,15 @@ setup-services-docker:
     # Start services with Docker
     just ipfs-docker-start
     just bulletin-solo-zombienet-start
+
+    # Wait a bit longer and verify zombienet is running
+    echo "🔍 Verifying zombienet is ready..."
+    sleep 10
+    echo "   Zombienet process check:"
+    ps aux | grep zombienet | grep -v grep || echo "   ⚠ No zombienet process found"
+    echo "   Checking zombienet log:"
+    tail -20 /tmp/zombienet.log || echo "   ⚠ Could not read zombienet log"
+
     just ipfs-docker-connect
     just ipfs-reconnect-docker-start
     just papi-generate