fix DSN and parts of it

.env.example

@@ -67,9 +67,11 @@ S3MAP_POSTGRES_DB=postgres
 
 # Read-only user for any service
 # that want to access the configdb.
-CONFIGDB_DSN=postgresql://configdb:configdb@database:5432/postgres
 CONFIGDB_USER=configdb
 CONFIGDB_PASSWORD=configdb
+CONFIGDB_HOST=database
+CONFIGDB_DB=postgres
+CONFIGDB_PORT=5432
 
 ############################################################
 # mqtt-broker (mosquitto)
@@ -178,7 +180,6 @@ ALLOWED_VOS=UFZ-Timeseries-Management
 ############################################################
 TOMCAT_IMAGE_TAG=9.0.90
 
-
 ############################################################
 # tsmdl (python, fastapi)
 ############################################################

docker-compose.yml

@@ -843,7 +843,12 @@ services:
       MQTT_PASSWORD: "${MQTT_PASSWORD}"
       MQTT_CLIENT_ID: "basic-demo-scheduler"
       MQTT_QOS: "${MQTT_QOS}"
-      CONFIGDB_DSN: "${CONFIGDB_DSN}"
+      CONFIGDB_DSN: "postgresql://\
+        ${CONFIGDB_USER}:\
+        ${CONFIGDB_PASSWORD}@\
+        ${CONFIGDB_HOST}:\
+        ${CONFIGDB_PORT}/\
+        ${CONFIGDB_DATABASE}"
       DB_API_BASE_URL: "${DB_API_BASE_URL}"
     command:
       - "--verbose"