diff --git a/portainer.py b/portainer.py
index 53c2503..5b2f7ce 100644
--- a/portainer.py
+++ b/portainer.py
@@ -2,7 +2,24 @@ import os
 import requests
 import json
 import uuid
-# portainer.py
+import argparse
+parser = argparse.ArgumentParser(description="Portainer helper - use env vars or pass credentials.")
+parser.add_argument("--base", "-b", default=os.getenv("PORTAINER_URL", "https://portainer.example.com"),
+                    help="Base URL for Portainer (ENV: PORTAINER_URL)")
+parser.add_argument("--user", "-u", default=os.getenv("PORTAINER_USER"),
+                    help="Portainer username (ENV: PORTAINER_USER)")
+parser.add_argument("--password", "-p", default=os.getenv("PORTAINER_PASS"),
+                    help="Portainer password (ENV: PORTAINER_PASS)")
+parser.add_argument("--endpoint-id", "-e", type=int, help="Endpoint ID to limit stack operations")
+parser.add_argument("--list-endpoints", action="store_true", help="List endpoints")
+parser.add_argument("--list-stacks", action="store_true", help="List stacks")
+parser.add_argument("--get-stack", metavar="NAME_OR_ID", help="Get stack by name or numeric id")
+parser.add_argument("--create-stack", action='store_true')
+parser.add_argument("--stack-id", "-s", type=str, help="Stack ID for operations")
+parser.add_argument("--token-only", action="store_true", help="Print auth token and exit")
+parser.add_argument("--timeout", type=int, default=10, help="Request timeout seconds")
+args = parser.parse_args()
+
 
 def get_portainer_token(base_url, username=None, password=None, timeout=10):
     """
@@ -81,7 +98,13 @@ def create_stack(base_url, token, endpoint_id=None, data={}, timeout=10):
     path = "/api/stacks/create/standalone/repository"
     if endpoint_id is not None:
         path += f"?endpointId={endpoint_id}"
-    stacks = api_post(base_url, path, token, data, timeout=timeout)
+    try:        
+        stacks = api_post(base_url, path, token, data, timeout=timeout)
+    except Exception as e:
+        #print(f"Error creating stack: {e}")
+        if "Conflict for url" in str(e):
+            print("Stack with this name may already exist.")
+        return []
     if stacks is None:
         return []
     return stacks
@@ -104,7 +127,7 @@ if __name__ == "__main__":
     for stack in stacks:
         print(f"Stack ID: {stack['Id']}, Name: {stack['Name']}")
 
-    stck = get_stack(base, "pihole", token)
+    stck = get_stack(base, args.stack_id, token)
 
 
 
@@ -134,13 +157,13 @@ if __name__ == "__main__":
             "supportRelativePath": True,
             "repositoryAuthentication": True,
             "fromAppTemplate": False,
-            "registries": [],
+            "registries": [6],
             "FromAppTemplate": False,
             "Namespace": "",
             "CreatedByUserId": "",
             "Webhook": "",
             "filesystemPath": "/tmp",
-            "RegistryID": 6
+            "RegistryID": 4
         }
     except:
         req = {
@@ -160,7 +183,7 @@ if __name__ == "__main__":
         "supportRelativePath": True,
         "repositoryAuthentication": True,
         "fromAppTemplate": False,
-        "registries": [],
+        "registries": [6],
         "FromAppTemplate": False,
         "Namespace": "",
         "CreatedByUserId": "",
@@ -169,5 +192,7 @@ if __name__ == "__main__":
         "RegistryID": 6
     }
     print(json.dumps(req, indent=2))
-
-    create_stack(base, token, 41, data=req)
\ No newline at end of file
+    if args.create_stack:
+        create_stack(base, token, 41, data=req)
+    else:
+        print("Not creating stack, --create-stack not provided.")        
\ No newline at end of file