Limited number of connections

app-monolith/src/main/resources/application-cloud.properties

@@ -1,3 +1,5 @@
 spring.datasource.url=jdbc:postgresql://postgresql:5432/postgres
 spring.datasource.username=postgres
 spring.datasource.password=postgres
+# no money == small pool size ;)
+spring.datasource.hikari.maximum-pool-size=2