diff --git a/.drone.yml b/.drone.yml
index c5e9f5e..caaab54 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -3,16 +3,16 @@ kind: pipeline
 type: docker
 name: pull_request
 image_pull_secrets:
-    - dockerconfigjson
+  - dockerconfigjson
 
 steps:
-    - name: lint yaml
-      image: registry.fedy95.com/baseimage-yamllint:latest
-      commands:
-          - yamllint -c /yamllint/relaxed.yaml etc/docker/registry/config.yml
-          - yamllint -c /yamllint/relaxed.yaml docker-compose.yml
-      when:
-          event: pull_request
+  - name: lint yaml
+    image: registry.fedy95.com/baseimage-yamllint:latest
+    commands:
+      - yamllint -c /yamllint/relaxed.yaml etc/docker/registry/config.yml
+      - yamllint -c /yamllint/relaxed.yaml docker-compose.yml
+    when:
+      event: pull_request
 
 ---
 kind: pipeline
@@ -20,26 +20,26 @@ type: ssh
 name: master_push
 
 clone:
-    disable: true
+  disable: true
 
 server:
-    host:
-        from_secret: host
-    user:
-        from_secret: user
-    password:
-        from_secret: password
+  host:
+    from_secret: host
+  user:
+    from_secret: user
+  password:
+    from_secret: password
 
 steps:
-    - name: release
-      commands:
-          - cd /mnt/md0/infra/docker_registry
-          - git pull
-          - make restart
+  - name: release
+    commands:
+      - cd /mnt/md0/infra/docker_registry
+      - git pull
+      - make restart
 
 trigger:
-    branch:
-        - master
-    event:
-        - push
+  branch:
+    - master
+  event:
+    - push
 ...
diff --git a/.editorconfig b/.editorconfig
index 9141329..73069d4 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -1,8 +1,10 @@
 root = true
 
 [*]
-end_of_line = lf
-insert_final_newline = true
 charset = utf-8
+end_of_line = lf
 indent_style = space
-indent_size = 4
+indent_size = 2
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 100
diff --git a/docker-compose.yml b/docker-compose.yml
index bd9db28..5c276f9 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,17 +2,17 @@
 version: "3"
 
 services:
-    registry:
-        image: registry:2.7.1
-        container_name: registry
+  registry:
+    image: registry:2.7.1
+    container_name: registry
 
-        hostname: registry
-        restart: always
+    hostname: registry
+    restart: always
 
-        ports:
-            - "5000:5000"
+    ports:
+      - "5000:5000"
 
-        volumes:
-            - ./etc/docker/registry/config.yml:/etc/docker/registry/config.yml
-            - ./var/lib/registry:/var/lib/registry
+    volumes:
+      - ./etc/docker/registry/config.yml:/etc/docker/registry/config.yml
+      - ./var/lib/registry:/var/lib/registry
 ...
diff --git a/etc/docker/registry/config.yml b/etc/docker/registry/config.yml
index afb0310..8b4146d 100644
--- a/etc/docker/registry/config.yml
+++ b/etc/docker/registry/config.yml
@@ -1,20 +1,20 @@
 ---
 version: 0.1
 log:
-    fields:
-        service: registry
+  fields:
+    service: registry
 storage:
-    cache:
-        blobdescriptor: inmemory
-    filesystem:
-        rootdirectory: /var/lib/registry
+  cache:
+    blobdescriptor: inmemory
+  filesystem:
+    rootdirectory: /var/lib/registry
 http:
-    addr: :5000
-    headers:
-        X-Content-Type-Options: [nosniff]
+  addr: :5000
+  headers:
+    X-Content-Type-Options: [ nosniff ]
 health:
-    storagedriver:
-        enabled: true
-        interval: 10s
-        threshold: 3
+  storagedriver:
+    enabled: true
+    interval: 10s
+    threshold: 3
 ...