refactor: upgrade the Gatling load test

Author: dunglas

.github/dependabot.yml

@@ -6,3 +6,9 @@ updates:
       interval: weekly
     commit-message:
       prefix: ci
+  - package-ecosystem: maven
+    directory: /gatling
+    schedule:
+      interval: weekly
+    commit-message:
+      prefix: ci

docs/hub/load-test.md

@@ -7,9 +7,9 @@ To test your own infrastructure, we provide a [Gatling](https://gatling.io)-base
 
 ## Running the Load Test
 
-1. Download [Gatling version 3](https://gatling.io/open-source/)
-2. Clone the Mercure repository: `git clone https://github.com/dunglas/mercure`
-3. Run `path/to/gatling/bin/gatling.sh --simulations-folder mercure/gatling/`
+1. Clone the Mercure repository: `git clone https://github.com/dunglas/mercure`
+2. Go to the `gatling` directory: `cd gatling`
+3. Run `./mvnw gatling:test`
 
 ## Configuration
 

gatling/.gatling/package.conf

@@ -0,0 +1,2 @@
+# See https://github.com/gatling/gatling-maven-plugin-demo-scala/blob/main/.gatling/example.package.conf for a full deployment configuration file example
+# Learn more about Configuration as Code: https://docs.gatling.io/reference/execute/cloud/user/configuration-as-code

gatling/.gitignore

@@ -0,0 +1,2 @@
+/target
+/.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/3.9.9/apache-maven-3.9.9-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.3.2/maven-wrapper-3.3.2.jar