Update DB2 container version and instructions

Author: Sanne

hibernate-reactive-core/src/test/java/org/hibernate/reactive/containers/DB2Database.java

@@ -79,7 +79,7 @@ class DB2Database implements TestableDatabase {
 	 * TIP: To reuse the same containers across multiple runs, set `testcontainers.reuse.enable=true` in a file located
 	 * at `$HOME/.testcontainers.properties` (create the file if it does not exist).
 	 */
-	static final Db2Container db2 = new Db2Container( imageName( "docker.io", "ibmcom/db2", "11.5.7.0a" ) )
+	static final Db2Container db2 = new Db2Container( imageName( "docker.io", "ibmcom/db2", "11.5.8.0" ) )
 			.withUsername( DatabaseConfiguration.USERNAME )
 			.withPassword( DatabaseConfiguration.PASSWORD )
 			.withDatabaseName( DatabaseConfiguration.DB_NAME )

podman.md

@@ -154,10 +154,10 @@ and schema to run the tests:
 [db2]:https://www.ibm.com/analytics/db2
 
 ```
-podman run --rm -e LICENSE=accept --privileged=true --name HibernateTestingDB2 \
-    -e DBNAME=hreact -e DB2INSTANCE=hreact -e DB2INST1_PASSWORD=hreact \
-    -e PERSISTENT_HOME=false -e ARCHIVE_LOGS=false -e AUTOCONFIG=false \
-    -p 50000:50000 docker.io/ibmcom/db2:11.5.7.0a
+podman run --rm -e LICENSE=accept --privileged=true --group-add keep-groups \
+    --name HibernateTestingDB2 -e DBNAME=hreact -e DB2INSTANCE=hreact \
+    -e DB2INST1_PASSWORD=hreact -e PERSISTENT_HOME=false -e ARCHIVE_LOGS=false \
+    -e AUTOCONFIG=false -p 50000:50000 docker.io/ibmcom/db2:11.5.8.0
 ```
 
 When the database has started, you can run the tests on Db2 with:

tooling/jbang/Db2ReactiveTest.java.qute

@@ -65,7 +65,7 @@ public class {baseName} {
 	}
 
     @ClassRule
-    public final static Db2Container database = new Db2Container( imageName( "docker.io", "ibmcom/db2", "11.5.7.0a" ) )
+    public final static Db2Container database = new Db2Container( imageName( "docker.io", "ibmcom/db2", "11.5.8.0" ) )
             .acceptLicense();
 
 	private Mutiny.SessionFactory sessionFactory;

tooling/jbang/ReactiveTest.java

@@ -230,7 +230,7 @@ public String toString() {
 	enum Database {
 		POSTGRESQL( () -> new PostgreSQLContainer( "postgres:14" ) ),
 		MYSQL( () -> new MySQLContainer( "mysql:8.0.31" ) ),
-		DB2( () -> new Db2Container( "docker.io/ibmcom/db2:11.5.7.0a" ).acceptLicense() ),
+		DB2( () -> new Db2Container( "docker.io/ibmcom/db2:11.5.8.0" ).acceptLicense() ),
 		MARIADB( () -> new MariaDBContainer( "mariadb:10.9.3" ) ),
 		COCKROACHDB( () -> new CockroachContainer( "cockroachdb/cockroach:v22.1.9" ) );