feat(wish/cpp): make it able to run the benchmark on Kubernetes

wish/cpp/.dockerignore

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+build/
+*.o
+*.a
+certs/ca.key
+certs/server.key
+certs/client.key

wish/cpp/Dockerfile.benchmark

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+# syntax=docker/dockerfile:1
+# ---------------------------------------------------------------------------
+# Stage 1: Build
+# ---------------------------------------------------------------------------
+FROM debian:bookworm AS builder
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        build-essential \
+        cmake \
+        git \
+        ninja-build \
+        ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /src
+
+# Copy CMakeLists, patches, and source files before configure.
+# CMake validates source file existence during the configure phase,
+# so src/ must be present before `cmake -B build` runs.
+# FetchContent downloads are still cached as long as CMakeLists.txt,
+# patches/, src/, and benchmark/ are unchanged.
+COPY CMakeLists.txt .
+COPY patches/ patches/
+COPY src/ src/
+COPY benchmark/ benchmark/
+
+# Configure: triggers FetchContent downloads (cached as a Docker layer).
+RUN cmake -B build -G Ninja \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DWISH_BUILD_TESTS=OFF \
+        -DWISH_BUILD_BENCHMARKS=ON \
+        -DWISH_BUILD_EXAMPLES=OFF
+
+RUN cmake --build build \
+        --target benchmark_client tls_benchmark_client high_qps_benchmark_client \
+        -- -j"$(nproc)"
+
+# ---------------------------------------------------------------------------
+# Stage 2: Runtime
+# ---------------------------------------------------------------------------
+FROM debian:bookworm-slim AS runtime
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        libstdc++6 \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY --from=builder /src/build/benchmark/benchmark_client          /usr/local/bin/benchmark_client
+COPY --from=builder /src/build/benchmark/tls_benchmark_client      /usr/local/bin/tls_benchmark_client
+COPY --from=builder /src/build/benchmark/high_qps_benchmark_client /usr/local/bin/high_qps_benchmark_client
+
+# Default: latency benchmark client.
+# Override the ENTRYPOINT or CMD in the Job spec to switch clients.
+ENTRYPOINT ["/usr/local/bin/benchmark_client"]
+CMD ["--host=wish-echo-server", "--port=8080"]

wish/cpp/Dockerfile.echo_server

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+# syntax=docker/dockerfile:1
+# ---------------------------------------------------------------------------
+# Stage 1: Build
+# ---------------------------------------------------------------------------
+FROM debian:bookworm AS builder
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        build-essential \
+        cmake \
+        git \
+        ninja-build \
+        ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /src
+
+# Copy CMakeLists, patches, and source files before configure.
+# CMake validates source file existence during the configure phase,
+# so src/ must be present before `cmake -B build` runs.
+# FetchContent downloads are still cached as long as CMakeLists.txt,
+# patches/, and src/ are unchanged.
+COPY CMakeLists.txt .
+COPY patches/ patches/
+COPY src/ src/
+COPY examples/ examples/
+
+# Configure: triggers FetchContent downloads (cached as a Docker layer).
+RUN cmake -B build -G Ninja \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DWISH_BUILD_TESTS=OFF \
+        -DWISH_BUILD_BENCHMARKS=OFF \
+        -DWISH_BUILD_EXAMPLES=ON
+
+RUN cmake --build build \
+        --target echo_server tls_echo_server \
+        -- -j"$(nproc)"
+
+# ---------------------------------------------------------------------------
+# Stage 2: Runtime
+# ---------------------------------------------------------------------------
+FROM debian:bookworm-slim AS runtime
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        libstdc++6 \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY --from=builder /src/build/examples/echo_server      /usr/local/bin/echo_server
+COPY --from=builder /src/build/examples/tls_echo_server  /usr/local/bin/tls_echo_server
+
+EXPOSE 8080
+
+# Default: plain-text echo server. Override CMD in the Pod spec for TLS.
+ENTRYPOINT ["/usr/local/bin/echo_server"]
+CMD ["--port=8080"]

wish/cpp/deployments/benchmark.yaml

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+apiVersion: batch/v1
+kind: Job
+metadata:
+  # Append a unique suffix (e.g. timestamp) to run multiple benchmarks:
+  #   kubectl create job wish-benchmark-$(date +%s) --from=job/wish-benchmark-client
+  name: wish-benchmark
+spec:
+  # Do not retry on failure so a broken binary doesn't loop.
+  backoffLimit: 0
+  template:
+    spec:
+      restartPolicy: Never
+      containers:
+        - name: client
+          image: us-central1-docker.pkg.dev/black-outlet-487003-v4/wish/benchmark:latest
+          command: ["high_qps_benchmark_client"]
+          args:
+            - "--stderrthreshold=0"
+            - "--benchmark_counters_tabular=true"
+            - "--host=wish-echo-server"
+            - "--port=8080"
+            - "--benchmark_min_time=5s"
+          resources:
+            requests:
+              cpu: "0.5"
+              memory: "500Mi"
+            limits:
+              cpu: "0.5"
+              memory: "500Mi"

wish/cpp/deployments/echo-server.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: wish-echo-server
+  labels:
+    app: wish-echo-server
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: wish-echo-server
+  template:
+    metadata:
+      labels:
+        app: wish-echo-server
+    spec:
+      containers:
+        - name: server
+          image: us-central1-docker.pkg.dev/black-outlet-487003-v4/wish/echo-server:latest
+          args:
+            - "--port=8080"
+          ports:
+            - name: http
+              containerPort: 8080
+              protocol: TCP
+          readinessProbe:
+            tcpSocket:
+              port: 8080
+            initialDelaySeconds: 2
+            periodSeconds: 5
+          resources:
+            requests:
+              cpu: "1"
+              memory: "500Mi"
+            limits:
+              cpu: "1"
+              memory: "500Mi"
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: wish-echo-server
+spec:
+  selector:
+    app: wish-echo-server
+  ports:
+    - port: 8080
+      targetPort: 8080
+      protocol: TCP
+  type: ClusterIP

wish/cpp/deployments/tls-echo-server.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: wish-tls-echo-server
+  labels:
+    app: wish-tls-echo-server
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: wish-tls-echo-server
+  template:
+    metadata:
+      labels:
+        app: wish-tls-echo-server
+    spec:
+      containers:
+        - name: server
+          image: us-central1-docker.pkg.dev/black-outlet-487003-v4/wish/tls-echo-server:latest
+          args:
+            - "--port=8443"
+          ports:
+            - name: https
+              containerPort: 8443
+              protocol: TCP
+          readinessProbe:
+            tcpSocket:
+              port: 8443
+            initialDelaySeconds: 2
+            periodSeconds: 5
+          resources:
+            requests:
+              cpu: "1"
+              memory: "500Mi"
+            limits:
+              cpu: "1"
+              memory: "500Mi"
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: wish-tls-echo-server
+spec:
+  selector:
+    app: wish-tls-echo-server
+  ports:
+    - port: 8443
+      targetPort: 8443
+      protocol: TCP
+  type: ClusterIP

wish/cpp/scripts/build-and-push.sh

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+#!/usr/bin/env bash
+# build-and-push.sh
+# Builds wish-server and wish-bench-client images, pushes them to Artifact Registry.
+#
+# Prerequisites:
+#   gcloud auth configure-docker "${REGION}-docker.pkg.dev"
+#   (or: gcloud auth login && gcloud auth application-default login)
+#
+# Usage:
+#   cd wish/cpp
+#   REGION=asia-northeast1 PROJECT=my-gcp-project REPOSITORY=wish ./scripts/build-and-push.sh
+#
+# Optional env vars:
+#   TAG          – image tag (default: git short SHA or "latest")
+#   PUSH         – set to "false" to build only without pushing
+
+set -euo pipefail
+
+REGION="${REGION:?Set REGION, e.g. asia-northeast1}"
+PROJECT="${PROJECT:?Set PROJECT to your GCP project ID}"
+REPOSITORY="${REPOSITORY:?Set REPOSITORY to your Artifact Registry repo name}"
+
+REGISTRY="${REGION}-docker.pkg.dev/${PROJECT}/${REPOSITORY}"
+
+# Use git short SHA as default tag for reproducibility; fall back to "latest".
+if git rev-parse --short HEAD &>/dev/null; then
+    DEFAULT_TAG="$(git rev-parse --short HEAD)"
+else
+    DEFAULT_TAG="latest"
+fi
+TAG="${TAG:-${DEFAULT_TAG}}"
+PUSH="${PUSH:-true}"
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+# The build context is wish/cpp (one level above scripts/).
+CTX="$(cd "${SCRIPT_DIR}/.." && pwd)"
+
+echo "==> Build context : ${CTX}"
+echo "==> Registry      : ${REGISTRY}"
+echo "==> Tag           : ${TAG}"
+echo ""
+
+build_and_push() {
+    local name="$1"
+    local dockerfile="$2"
+    local full_tag="${REGISTRY}/${name}:${TAG}"
+    local latest_tag="${REGISTRY}/${name}:latest"
+
+    echo "==> Building ${full_tag} ..."
+    DOCKER_BUILDKIT=1 docker build \
+        --file "${CTX}/${dockerfile}" \
+        --tag "${full_tag}" \
+        --tag "${latest_tag}" \
+        "${CTX}"
+
+    if [[ "${PUSH}" == "true" ]]; then
+        echo "==> Pushing ${full_tag} ..."
+        docker push "${full_tag}"
+        docker push "${latest_tag}"
+    fi
+}
+
+build_and_push "echo-server"       "Dockerfile.echo_server"
+build_and_push "benchmark" "Dockerfile.benchmark"