Increase max connections for postgres container as it runs out of connections during intergation tests, also use half of the default pool size to prevent exhausting the connections

Author: mprins

build/ci/docker-compose.yml

@@ -24,6 +24,7 @@ services:
   postgres:
     container_name: postgres
     image: postgis/postgis:18-3.6
+    command: -c 'max_connections=200'
     environment:
       TZ: Europe/Amsterdam
       POSTGRES_USER: tailormap

src/test/resources/application-postgresql.properties

@@ -24,6 +24,8 @@ tailormap-api.prometheus-api-appmetrics-layer-switched-on-updated=time()-max_ove
 spring.datasource.url=jdbc:postgresql:tailormap
 spring.datasource.username=tailormap
 spring.datasource.password=tailormap
+# half of the default value of 10, to prevent too many connections in integration tests
+spring.datasource.hikari.maximum-pool-size=5
 spring.jpa.open-in-view=false
 spring.jpa.properties.hibernate.use_sql_comments=true