lib-db-module env variable

backend-api/deployment.yaml

@@ -37,7 +37,7 @@ spec:
           ports:
             - containerPort: 8100
           env:
-            - name: BACKEND_API_DB_HOST
+            - name: DB_HOST
               value: "mysql.app-notifications.svc.cluster.local"
             - name: LOG_LEVEL
               value: "INFO"