diff --git a/.woodpecker.yaml b/.woodpecker.yaml
new file mode 100644
index 0000000..113c6d5
--- /dev/null
+++ b/.woodpecker.yaml
@@ -0,0 +1,11 @@
+---
+steps:
+  - name: linting
+    image: cytopia/yamllint:latest
+    commands:
+      - yamllint -f colored -s .
+when:
+  - event:
+      - push
+      - manual
+      - pull_request
diff --git a/.yamllint b/.yamllint
new file mode 100644
index 0000000..0453817
--- /dev/null
+++ b/.yamllint
@@ -0,0 +1,12 @@
+---
+yaml-files:
+  - '*.yaml'
+  - '*.yml'
+  - '.yamllint'
+
+extends: default
+
+rules:
+  line-length: disable
+  indentation:
+    indent-sequences: consistent
diff --git a/k8s/deployment.yaml b/k8s/deployment.yaml
index 9c756b4..3af25ac 100644
--- a/k8s/deployment.yaml
+++ b/k8s/deployment.yaml
@@ -30,12 +30,12 @@ spec:
           value: "1000"
         name: forgejo
         ports:
-          - containerPort: 3000
-            name: web
-            protocol: TCP
-          - containerPort: 22
-            name: ssh
-            protocol: TCP
+        - containerPort: 3000
+          name: web
+          protocol: TCP
+        - containerPort: 22
+          name: ssh
+          protocol: TCP
         volumeMounts:
         - mountPath: "/data"
           name: forgejo-pv-storage
diff --git a/k8s/ingress.yaml b/k8s/ingress.yaml
index cdddc40..0e0dc53 100644
--- a/k8s/ingress.yaml
+++ b/k8s/ingress.yaml
@@ -22,6 +22,6 @@ spec:
         path: /
         pathType: Prefix
   tls:
-    - hosts:
-        - git.svc.neuber.io
-      secretName: forgejo-tls-key
+  - hosts:
+    - git.svc.neuber.io
+    secretName: forgejo-tls-key
diff --git a/k8s/persistentvolumeclaim.yaml b/k8s/persistentvolumeclaim.yaml
index 91a0549..15ee3a3 100644
--- a/k8s/persistentvolumeclaim.yaml
+++ b/k8s/persistentvolumeclaim.yaml
@@ -9,7 +9,7 @@ metadata:
   namespace: forgejo
 spec:
   accessModes:
-    - ReadWriteOnce
+  - ReadWriteOnce
   volumeMode: Filesystem
   volumeName: pvc-64e344d5-9dbe-4de4-9e6f-a1bad1da300e
   resources: