diff --git a/z2/argocd-app.yml b/z2/argocd-app.yml
deleted file mode 100644
index 8b8c20f..0000000
--- a/z2/argocd-app.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-apiVersion: argoproj.io/v1alpha1
-kind: Application
-metadata:
-  name: tasks-app
-  namespace: argocd
-spec:
-  project: default
-  source:
-    repoURL: https://github.com/miracleqxz/K8s_project.git
-    targetRevision: main
-    path: tasks-app
-    helm:
-      valueFiles:
-        - values.yaml
-  destination:
-    server: https://kubernetes.default.svc
-    namespace: application
-  syncPolicy:
-    automated:
-      prune: true
-      selfHeal: true
-    syncOptions:
-      - CreateNamespace=true
diff --git a/z2/backend/app.py b/z2/backend/app.py
index 59f5f5e..63e4a74 100644
--- a/z2/backend/app.py
+++ b/z2/backend/app.py
@@ -1,3 +1,4 @@
+import os
 from flask import Flask, jsonify, request
 from flask_restful import Api, Resource
 from pymongo import MongoClient
@@ -5,7 +6,7 @@ import bcrypt
 
 app = Flask(__name__)
 api = Api(app)
-client = MongoClient("mongodb://db:27017")
+client = MongoClient(os.environ.get("MONGO_HOST", "mongodb://mongodb:27017"))
 db = client.BankAPI
 users = db["Users"]