Add docker-compose for database servers

benchmark/relational/docker-compose.yml

@@ -0,0 +1,23 @@
+h2:
+  image: oscarfonts/h2
+  ports:
+    - "9092:9092"
+    - "9093:9093"
+  volumes:
+    - /root/tmp
+  command:
+    - sh
+    - -c
+    - >
+       java -cp /opt/h2/bin/h2*.jar org.h2.tools.Server 
+       -ifNotExists -web -webAllowOthers -webPort 9093
+       -tcp -tcpAllowOthers -tcpPort 9092 -baseDir /root/tmp
+  working_dir: /root/tmp
+
+postgres:
+  image: postgres
+  ports:
+    - "5432:5432"
+  environment:
+    - POSTGRES_PASSWORD=postgres
+    - POSTGRES_DB=benchmark

benchmark/relational/readme.adoc

@@ -29,7 +29,17 @@ The benchmarks are run against the following databases:
 
 - In-memory H2
 - A locally running H2 (port 9092, database name `benchmark`, user `sa`, empty password)
-- A locally running Postgres (port 5432, database name `benchmark`, no user, no password)
+- A locally running Postgres (port 5432, database name `benchmark`, user `postgres`, password `postgres`)
 
 The settings can be adapted by tweaking corresponding `application-$database.properties` file in `src/main/resources`.
-
+
+You can start the servers using the `docker-compose.yml` in this directory, e.g:
+
+```
+$ docker-compose up
+...
+h2_1_67fd6612bf08 | TCP server running at tcp://172.17.1.3:9092 (others can connect)
+...
+postgres_1_8849164d8017 | 2019-08-21 08:54:32.138 UTC [1] LOG:  database system is ready to accept connections
+...
+```

benchmark/relational/src/main/java/org/springframework/data/microbenchmark/jpa/JpaBenchmark.java

@@ -29,6 +29,7 @@
 import org.openjdk.jmh.annotations.Param;
 import org.openjdk.jmh.annotations.Setup;
 import org.openjdk.jmh.infra.Blackhole;
+
 import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.data.microbenchmark.common.AbstractMicrobenchmark;
 
@@ -45,6 +46,13 @@ public class JpaBenchmark extends AbstractMicrobenchmark {
 	EntityManager em;
 	JpaBookRepository repository;
 
+	public static void main(String[] args) {
+		JpaBenchmark bench = new JpaBenchmark();
+		bench.profile = "h2";
+		bench.setUp();
+		bench.findAll(new Blackhole("Today's password is swordfish. I understand instantiating Blackholes directly is dangerous."));
+	}
+
 	@Setup
 	public void setUp() {
 

benchmark/relational/src/main/resources/application-h2.properties

@@ -1,4 +1,4 @@
-spring.datasource.url=jdbc:h2:tcp://localhost:9092/~/benchmark
+spring.datasource.url=jdbc:h2:tcp://localhost:9092/~/tmp/benchmark
 spring.datasource.username=sa
 spring.datasource.password=
 spring.datasource.platform=h2

benchmark/relational/src/main/resources/application-postgres.properties

@@ -1,4 +1,6 @@
 spring.datasource.url=jdbc:postgresql://localhost:5432/benchmark
+spring.datasource.username=postgres
+spring.datasource.password=postgres
 spring.datasource.platform=postgres
 spring.datasource.initialization-mode=always