rccontrol: pass db vars into grafana db datasource

config/grafana/provisioning/datasources/database.yaml

@@ -10,9 +10,10 b' datasources:'
     type: postgres
     uid: rc_postgres_db_datasource_1
     url: database:5432
-    database: rhodecode
-    user: rhodecode
+    sslmode: disable
+    database: $RC_DB_NAME
+    user: $RC_DB_USER
     secureJsonData:
-      password: $DB_PASSWORD
+      password: $RC_DB_PASSWORD
     version: 1
     editable: true

docker-compose-metrics.yaml

@@ -82,6 +82,10 b' services:'
   grafana:
     image: grafana/grafana:9.3.6
     restart: always
+    environment:
+      RC_DB_USER: ${DB_USER:?must-specify-db-user}
+      RC_DB_PASSWORD: ${DB_PASSWORD:?must-specify-db-password}
+      RC_DB_NAME: ${DB_NAME:?must-specify-db-name}
 #    ports:
 #      - "3000:3000"
     volumes:

scripts/rcstack/rcstack

@@ -5461,7 +5461,7 b' rcstack__completions_parse_requirements() {'
 
 # :command.initialize
 initialize() {
-  version="4.28.0.REL.2023.43"
+  version="4.28.0.REL.2023.45"
   long_usage=''
   set -e