fix: исправлено по pep8

Author: levinadev

docker-compose.production.yml

@@ -7,13 +7,13 @@ services:
   db:
     image: postgres:13.10
     environment:
-      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
-      - POSTGRES_USER=${POSTGRES_USER}
-      - POSTGRES_DB=${POSTGRES_DB}
+      - POSTGRES_PASSWORD=kittygram_password
+      - POSTGRES_USER=kittygram_user
+      - POSTGRES_DB=kittygram
     volumes:
       - pg_data_production:/var/lib/postgresql/data
     healthcheck:
-      test: [ "CMD-SHELL", "pg_isready -U $POSTGRES_USER" ]
+      test: [ "CMD-SHELL", "pg_isready -U kittygram_user" ]
       interval: 10s
       timeout: 5s
       retries: 5