diff --git a/docker-compose.yaml b/docker-compose.yaml
index 644bddf6..4a3bb8ee 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -1,39 +1,40 @@
 # This docker-compose file provides quick setups for testing different storage backend options.
 version: "3.8"
+
 services:
-  mysql:
-    # For using percona-xtradb you need to make strict mode permissive with:
-    # docker-compose exec mysql mysql -uroot -proot -e "SET GLOBAL pxc_strict_mode=PERMISSIVE;"
-    # See: https://www.percona.com/doc/percona-xtradb-cluster/5.7/features/pxc-strict-mode.html
-    # image: percona/percona-xtradb-cluster:5.7
-    # image: mariadb:10.5
-    # image: mysql:5.6
-    # image: mysql:8.0
-    image: mysql:5.7
-    environment:
-      MYSQL_DATABASE: dex
-      MYSQL_USER: mysql
-      MYSQL_PASSWORD: mysql
-      MYSQL_ROOT_PASSWORD: root
-    ports:
-      - "127.0.0.1:3306:3306"
+    mysql:
+        # For using percona-xtradb you need to make strict mode permissive with:
+        # docker-compose exec mysql mysql -uroot -proot -e "SET GLOBAL pxc_strict_mode=PERMISSIVE;"
+        # See: https://www.percona.com/doc/percona-xtradb-cluster/5.7/features/pxc-strict-mode.html
+        # image: percona/percona-xtradb-cluster:5.7
+        # image: mariadb:10.5
+        # image: mysql:5.6
+        # image: mysql:8.0
+        image: mysql:5.7
+        environment:
+            MYSQL_DATABASE: dex
+            MYSQL_USER: mysql
+            MYSQL_PASSWORD: mysql
+            MYSQL_ROOT_PASSWORD: root
+        ports:
+            - "127.0.0.1:3306:3306"
 
-  postgres:
-    image: postgres:10.15
-    environment:
-      POSTGRES_DB: dex
-      POSTGRES_USER: postgres
-      POSTGRES_PASSWORD: postgres
-    ports:
-      - "127.0.0.1:5432:5432"
+    postgres:
+        image: postgres:10.15
+        environment:
+            POSTGRES_DB: dex
+            POSTGRES_USER: postgres
+            POSTGRES_PASSWORD: postgres
+        ports:
+            - "127.0.0.1:5432:5432"
 
-  etcd:
-    image: gcr.io/etcd-development/etcd:v3.4.9
-    environment:
-      ETCD_LISTEN_CLIENT_URLS: http://0.0.0.0:2379
-      ETCD_ADVERTISE_CLIENT_URLS: http://0.0.0.0:2379
-    ports:
-      - "127.0.0.1:2379:2379"
+    etcd:
+        image: gcr.io/etcd-development/etcd:v3.4.9
+        environment:
+            ETCD_LISTEN_CLIENT_URLS: http://0.0.0.0:2379
+            ETCD_ADVERTISE_CLIENT_URLS: http://0.0.0.0:2379
+        ports:
+            - "127.0.0.1:2379:2379"
 
-  # For testing the Kubernetes storage backend we suggest https://kind.sigs.k8s.io/:
-  # kind create cluster
+    # For testing the Kubernetes storage backend we suggest https://kind.sigs.k8s.io/:
+    # kind create cluster