dont silently crash when database connection fails

capsulflask/db.py

@@ -12,11 +12,18 @@ from capsulflask.shared import my_exec_info_message
 
 def init_app(app, is_running_server):
 
-  app.config['PSYCOPG2_CONNECTION_POOL'] = psycopg2.pool.SimpleConnectionPool(
-    1,
-    20,
-    app.config['POSTGRES_CONNECTION_PARAMETERS']
-  )
+  try:
+    app.config['PSYCOPG2_CONNECTION_POOL'] = psycopg2.pool.SimpleConnectionPool(
+      1,
+      20,
+      app.config['POSTGRES_CONNECTION_PARAMETERS']
+    )
+  except:
+    app.logger.error(f"""
+        error was thrown when connecting to postgres database:
+        {my_exec_info_message(sys.exc_info())}"""
+    )
+    raise
 
   # tell the app to clean up the DB connection when shutting down.
   app.teardown_appcontext(close_db)