default enviroment variables

docker-compose.yaml

@@ -5,8 +5,8 @@ services:
     volumes:
       - postgres:/var/lib/postgresql
     environment:
-      POSTGRES_DB: ${POSTGRES_DB}
+      POSTGRES_DB: ${POSTGRES_DB:-naliia}
-      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-SUp3r-pass*DB}
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U postgres"]
       interval: 10s