diff --git a/docker-compose.yml b/docker-compose.yml
index 2600eae..ce7de3a 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -13,13 +13,18 @@ services:
     environment:
       REPO_URL: ${REPO_URL}
       BRANCH: ${REPO_BRANCH:-main}
+      DB_HOST: mariadb
+      DB_PORT: 3306
       APP_NAME: ${APP_NAME}
       APP_URL: ${APP_URL}
       NGINX_HOST: ${APP_DOMAIN}
       NGINX_PORT: ${APP_PORT:-80}
     networks:
+      - mariadb_internal
       - app_network
 
 networks:
+  mariadb_internal:
+    external: true
   app_network:
     driver: bridge
\ No newline at end of file
diff --git a/docker/entrypoint.sh b/docker/entrypoint.sh
index 6695906..617332b 100644
--- a/docker/entrypoint.sh
+++ b/docker/entrypoint.sh
@@ -23,6 +23,8 @@ cd "$TARGET_DIR"
 update_env() { local k=$1 v=$2; grep -q "^$k=" .env && sed -i "s|^$k=.*|$k=$v|" .env || echo "$k=$v" >> .env; }
 update_env APP_NAME "$APP_NAME"
 update_env APP_URL  "${APP_URL%/}"
+update_env DB_HOST "$DB_HOST"
+update_env DB_PORT "$DB_PORT"
 
 php artisan key:generate --force
 php artisan migrate --force