use longhorn instead of ceph

cluster/apps/semaphore/semaphore-pvc.yml

@@ -12,3 +12,18 @@ spec:
     requests:
       storage: 2Gi
   storageClassName: csi-rbd-sc
+
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: semaphore-longhorn
+  namespace: default
+spec:
+  accessModes:
+    - ReadWriteOnce
+  volumeMode: Filesystem
+  resources:
+    requests:
+      storage: 2Gi
+  storageClassName: longhorn

cluster/apps/semaphore/semaphore.yml

@@ -65,4 +65,4 @@ spec:
       volumes:
       - name: db
         persistentVolumeClaim:
-          claimName: semaphore-ceph
+          claimName: semaphore-longhorn