Add postgres db for gitea

fighter/config/gitea/docker-compose.yml

@@ -1,6 +1,6 @@
 version: "3"
 services:
-  server:
+  gitea:
     image: gitea/gitea:1.21.0
     container_name: gitea_gitea
     env_file:
@@ -8,6 +8,7 @@ services:
     restart: always
     networks:
       - web
+      - gitea
     volumes:
       - $DOCKER_DATA/gitea:/data
       - /etc/timezone:/etc/timezone:ro
@@ -21,6 +22,21 @@ services:
       - traefik.http.routers.gitea.middlewares=securityheaders@file
       - traefik.http.routers.gitea.service=gitea
       - traefik.http.services.gitea.loadbalancer.server.port=3000
+
+  postgres:
+    image: postgres:13
+    container_name: gitea_postgres
+    networks:
+      - gitea
+    env_file:
+      - postgres_secrets.env
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+
 networks:
   web:
-    external: true
+    external: true
+  gitea:
+
+volumes:
+  postgres_data: