Initial project

.github/dependabot.yml

@@ -0,0 +1,26 @@
+version: 2
+updates:
+  - package-ecosystem: "maven"
+    directory: "/gatling"
+    commit-message:
+      prefix: "chore"
+    schedule:
+      interval: "weekly"
+      day: "sunday"
+    ignore:
+      - dependency-name: "com.google.protobuf:protoc"
+        versions: ['>= 4'] # https://github.com/grpc/grpc-java/issues/11015
+  - package-ecosystem: "gradle"
+    directory: "/server"
+    commit-message:
+      prefix: "chore"
+    groups:
+      grpc:
+        patterns:
+          - "io.grpc:*"
+    schedule:
+      interval: "weekly"
+      day: "sunday"
+    ignore:
+      - dependency-name: "com.google.protobuf:protoc"
+        versions: ['>= 4'] # https://github.com/grpc/grpc-java/issues/11015

.github/workflows/build.yml

@@ -0,0 +1,36 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    env:
+      JAVA_OPTS: "-Xmx4G"
+      SBT_OPTS: "-Dsbt.ci=true"
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'
+          java-version: '21'
+
+      - name: Build Gatling
+        working-directory: gatling
+        run: ./mvnw --batch-mode -Dstyle.color=always --no-transfer-progress test-compile

.gitignore

@@ -0,0 +1,2 @@
+.idea/
+.certs/

README.md

@@ -0,0 +1,13 @@
+# Gatling gRPC training
+
+This training project contains:
+
+- A [Java with Maven Gatling gRPC project](https://github.com/gatling/gatling-grpc-training/tree/main/gatling)
+- A [training server](https://github.com/gatling/gatling-grpc-training/tree/main/server)
+
+Check each project for their usage details.
+
+## Certificates
+
+The script we used to generate all the certificates present in the training projects can be found
+[here](https://github.com/gatling/gatling-grpc-training/blob/main/certificates.sh).

certificates.sh

@@ -0,0 +1,76 @@
+#!/usr/bin/env bash
+
+set -e
+[[ "$DEBUG" ]] && set -x
+
+CA_CN=gatling-grpc-training-test-ca
+
+CLIENT_CN_PREFIX=gatling-grpc-training-test-client
+SERVER_CN=gatling-grpc-training-test-server
+
+certs_dir=.certs
+mkdir -p $certs_dir
+rm -rf "${certs_dir:?}/*"
+
+server_dir=server/src/main
+client_dir=gatling/src/test
+
+## Certificate Authority
+
+# Generate CA private key
+openssl genrsa -passout pass:1111 -des3 -out $certs_dir/ca.key 4096
+
+# Generate CA certificate
+openssl req \
+  -new -x509 \
+  -key $certs_dir/ca.key -out $certs_dir/ca.crt \
+  -days 3650 -passin pass:1111 \
+  -subj "/C=FR/ST=Ile-de-France/L=Paris/O=Gatling gRPC Training/OU=IT/CN=$CA_CN"
+
+## Clients certificates
+
+for i in {1..5}; do
+  # Generate the client private key
+  openssl genrsa -out $certs_dir/client$i.key 4096
+
+  # Generate a Certificate Signing Request for the client
+  openssl req -new \
+    -key $certs_dir/client$i.key \
+    -out $certs_dir/client$i.csr \
+    -subj "/C=FR/ST=Ile-de-France/L=Paris/O=Gatling gRPC Training/OU=IT/CN=${CLIENT_CN_PREFIX}$i"
+  #openssl req -text -noout -verify -in $certs_dir/client$i.csr
+
+  # Sign the request with the CA
+  openssl x509 -req \
+    -CA $certs_dir/ca.crt -CAkey $certs_dir/ca.key \
+    -in $certs_dir/client$i.csr -out $certs_dir/client$i.crt \
+    -days 3650 -passin pass:1111
+  openssl x509 -in $certs_dir/client$i.crt -noout -serial
+  openssl verify -verbose -CAfile $certs_dir/ca.crt $certs_dir/client$i.crt
+done
+
+## Server certificate
+
+# Generate the server private key
+openssl genrsa -out $certs_dir/server.key 4096
+
+# Generate a Certificate Signing Request for the server
+openssl req -new \
+  -key $certs_dir/server.key -out $certs_dir/server.csr \
+  -subj "/C=FR/ST=Ile-de-France/L=Paris/O=Gatling gRPC Training/OU=IT/CN=$SERVER_CN"
+#openssl req -text -noout -verify -in $certs_dir/server.csr
+
+# Sign the request with the CA
+openssl x509 -req \
+  -CA $certs_dir/ca.crt -CAkey $certs_dir/ca.key \
+  -in $certs_dir/server.csr -out $certs_dir/server.crt \
+  -days 3650 -passin pass:1111
+openssl x509 -in $certs_dir/server.crt -noout -serial
+openssl verify -verbose -CAfile $certs_dir/ca.crt $certs_dir/server.crt
+
+# Copy certificate and private key into the different projects
+
+cp $certs_dir/ca.key $certs_dir/ca.crt $certs_dir/server.key $certs_dir/server.crt $server_dir/resources/certs
+
+rm $client_dir/resources/certs/*
+cp $certs_dir/ca.crt $certs_dir/client*.key $certs_dir/client*.crt $client_dir/resources/certs

gatling/.gitignore

@@ -0,0 +1,8 @@
+.bsp/
+.idea/
+.metals/
+target/
+
+*.iml
+
+.mvn/wrapper/*.jar

gatling/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,18 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.7/apache-maven-3.9.7-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.3.2/maven-wrapper-3.3.2.jar

gatling/README.md

@@ -0,0 +1,40 @@
+# Gatling gRPC - Java with Maven training project
+
+This folder contain a Maven project that shows how to use the Gatling gRPC DSL with Java.
+
+If you want to run the scenarios over a working server, make sure to check the [server training project](../server)
+beforehand.
+
+## Usage
+
+Both scenarios use a system property called `grpc.scenario` as a gRPC method switch. A value of `unary` is used to run
+the scenario which implements a gRPC scenario using a unary method, and so on.
+
+### Greeting simulation
+
+The system property `grpc.scenario` can take the following values:
+
+- unary
+- deadlines
+
+To run the Greeting simulation, use the `gatling:test` Maven goal:
+
+```console
+mvn gatling:test -Dgrpc.scenario=unary -Dgatling.simulationClass=io.gatling.grpc.training.GreetingSimulation
+```
+
+### Calculator simulation
+
+The system property `grpc.scenario` can take the following values:
+
+- unary
+- serverStreaming
+- clientStreaming
+- bidirectionalStreaming
+- deadlines
+
+To run the Calculator simulation, use the `gatling:test` Maven goal:
+
+```console
+mvn gatling:test -Dgrpc.scenario=unary -Dgatling.simulationClass=io.gatling.grpc.training.CalculatorSimulation
+```