feat: add flag to activate/deactivate database creation

add a config option to skip database (table) creation

this option is necessary for using the app with redshift

dlunch/conf/db/common.yaml

@@ -2,7 +2,11 @@ shared_data_folder: ${oc.env:PANEL_SHARED_DATA_FOLDER, /app/shared_data}
 engine:
   _target_: sqlalchemy.create_engine
   url: ${db.url}
-# CREATE DATABASE RETRIES
+# CREATE DATABASE 
+# Set attempt_creation to false to stop panel from creating database tables
+# Table shall exist on first run if false
+attempt_creation: true
+# Retries: 
 # Stop after delay in seconds or max attempts
 # Wait time in seconds before retrying
 create_retries:

dlunch/models.py

@@ -637,12 +637,14 @@ def create_database_with_retries(config: DictConfig) -> None:
         Data.metadata.create_all(engine)
 
     # Create tables
-    create_database_with_retries(config)
+    log.debug(f"attempt database creation: {config.db.attempt_creation}")
+    if config.db.attempt_creation:
+        create_database_with_retries(config)
 
-    # Retries stats
-    log.debug(
-        f"create database attempts: {create_database_with_retries.retry.statistics}"
-    )
+        # Retries stats
+        log.debug(
+            f"create database attempts: {create_database_with_retries.retry.statistics}"
+        )
 
     # If requested add users for basic auth (admin and guest)
     if add_basic_auth_users: