added env file

docker-compose.yml

@@ -9,8 +9,8 @@ services:
     restart: always
     ports:
       - "8000:8000"
-    environment:
-      - database_url=postgres://postgres:postgres@db:5432/postgres
+    env_file:
+      - .env
     networks:
       - tasktrekernetwork
     volumes:
@@ -21,8 +21,8 @@ services:
 
   db:
     image: postgres:14-alpine
-    environment:
-      - POSTGRES_PASSWORD=postgres
+    env_file:
+      - .env
     ports:
       - "5436:5432"
     volumes: