ci: add automated hole-punch tests

.github/workflows/interop-test.yml

@@ -37,3 +37,20 @@ jobs:
           s3-access-key-id: ${{ vars.TEST_PLANS_BUILD_CACHE_KEY_ID }}
           s3-secret-access-key: ${{ secrets.TEST_PLANS_BUILD_CACHE_KEY }}
           worker-count: 16
+  run-holepunching-interop:
+    name: Run hole-punch interoperability tests
+    runs-on: ${{ fromJSON(github.repository == 'libp2p/rust-libp2p' && '["self-hosted", "linux", "x64", "4xlarge"]' || '"ubuntu-latest"') }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: docker/setup-buildx-action@v3
+      - name: Build image
+        run: docker buildx build --load -t rust-libp2p-head . -f hole-punching-tests/Dockerfile
+      - name: Run tests
+        uses: libp2p/test-plans/.github/actions/run-interop-hole-punch-test@master
+        with:
+          test-filter: rust-libp2p-head
+          extra-versions: ${{ github.workspace }}/hole-punching-tests/version.json
+          s3-cache-bucket: libp2p-by-tf-aws-bootstrap
+          s3-access-key-id: ${{ vars.TEST_PLANS_BUILD_CACHE_KEY_ID }}
+          s3-secret-access-key: ${{ secrets.TEST_PLANS_BUILD_CACHE_KEY }}
+          worker-count: 1

Cargo.toml

@@ -15,6 +15,7 @@ members = [
     "examples/relay-server",
     "examples/rendezvous",
     "examples/upnp",
+    "hole-punching-tests",
     "identity",
     "interop-tests",
     "misc/allow-block-list",

hole-punching-tests/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "hole-punching-tests"
+version = "0.1.0"
+edition = "2021"
+publish = false
+license = "MIT"
+
+[dependencies]
+anyhow = "1"
+env_logger = "0.10.0"
+futures = "0.3.28"
+libp2p = { path = "../libp2p", features = ["tokio", "dcutr", "identify", "macros", "noise", "ping", "relay", "tcp", "yamux", "quic"] }
+log = "0.4"
+redis = { version = "0.23.0", default-features = false, features = ["tokio-comp"] }
+tokio = { version = "1.29.1", features = ["full"] }
+serde = { version = "1.0.188", features = ["derive"] }
+serde_json = "1.0.107"

hole-punching-tests/Dockerfile

@@ -0,0 +1,19 @@
+# syntax=docker/dockerfile:1.5-labs
+FROM rust:1.73.0 as builder
+
+# Run with access to the target cache to speed up builds
+WORKDIR /workspace
+ADD . .
+
+# Build the relay as a statically-linked binary. Unfortunately, we must specify the `--target` explicitly. See https://msfjarvis.dev/posts/building-static-rust-binaries-for-linux/.
+RUN --mount=type=cache,target=./target \
+    --mount=type=cache,target=/usr/local/cargo/registry \
+    RUSTFLAGS='-C target-feature=+crt-static' cargo build --release --package hole-punching-tests --target $(rustc -vV | grep host | awk '{print $2}')
+
+RUN --mount=type=cache,target=./target \
+    mv ./target/$(rustc -vV | grep host | awk '{print $2}')/release/hole-punching-tests /usr/local/bin/hole-punching-tests
+
+FROM alpine:3
+COPY --from=builder /usr/local/bin/hole-punching-tests /usr/bin/hole-punch-client
+RUN --mount=type=cache,target=/var/cache/apk apk add bind-tools jq curl tcpdump iproute2-tc
+ENV RUST_BACKTRACE=1