made changes in order to make gitea work

homelab/applications/postgres/compose.yml

@@ -1,18 +1,23 @@
 secrets:
-    postgres_password:
-        environment: POSTGRES_PASSWORD
-    postgres_user:
-        environment: POSTGRES_USER
+  postgres_password:
+    environment: POSTGRES_PASSWORD
+  postgres_user:
+    environment: POSTGRES_USER
 services:
-    postgres:
-        image: postgres:18
-        container_name: postgres
-        user: "1002"
-        restart: always
-        shm_size: 1024mb
-        environment:
-            POSTGRES_USER_FILE: /run/secrets/postgres_user
-            POSTGRES_PASSWORD_FILE: /run/secrets/postgres_password
-        secrets: ['postgres_password', 'postgres_user']
-        ports: ['5432:5432']
-        volumes: ['./data:/var/lib/postgresql']
+  postgres:
+    image: postgres:18
+    container_name: postgres
+    user: "1002"
+    restart: always
+    shm_size: 1024mb
+    environment:
+        POSTGRES_USER_FILE: /run/secrets/postgres_user
+        POSTGRES_PASSWORD_FILE: /run/secrets/postgres_password
+    secrets: ['postgres_password', 'postgres_user']
+    ports: ['5432:5432']
+    volumes: ['./data:/var/lib/postgresql']
+    networks: ['homelab']
+
+networks:
+  homelab:
+    external: true