feat: add database/postgres

database/docker-compose.yml

@@ -0,0 +1,15 @@
+version: "3.9"
+
+services:
+  postgresql:
+    image: postgres:alpine
+    container_name: "postgresql"
+    environment:
+      - "POSTGRES_PASSWORD=${POSTGRES_PASSWORD}"
+    volumes:
+      - ./data:/var/lib/postgresql/data
+    networks:
+      - database
+networks:
+  database:
+    external: true