fix

psql/docker-compose.yaml

@@ -9,11 +9,16 @@ services:
       POSTGRES_USER: root
       POSTGRES_PASSWORD: pa$$w0rd
       PGDATA: /var/lib/postgresql/data
+    volumes:
+      - pgdata:/var/lib/postgresql/data
     expose:
       - 5432
     networks:
       - vault_net
 
+volumes:
+  pgdata:
+
 networks:
   vault_net:
     name: vault_net