feat: Added mkfsParams to storage class example

Longhorn 4642

Signed-off-by: Ray Chang <ray.chang@suse.com>

chart/templates/storageclass.yaml

@@ -23,6 +23,9 @@ data:
       {{- if .Values.persistence.defaultFsType }}
       fsType: "{{ .Values.persistence.defaultFsType }}"
       {{- end }}
+      {{- if .Values.persistence.defaultMkfsParams }}
+      mkfsParams: "{{ .Values.persistence.defaultMkfsParams }}"
+      {{- end }}
       {{- if .Values.persistence.migratable }}
       migratable: "{{ .Values.persistence.migratable }}"
       {{- end }}    

chart/values.yaml

@@ -72,6 +72,7 @@ service:
 persistence:
   defaultClass: true
   defaultFsType: ext4
+  defaultMkfsParams: ""
   defaultClassReplicaCount: 3
   defaultDataLocality: disabled # best-effort otherwise
   reclaimPolicy: Delete

deploy/longhorn.yaml

@@ -56,6 +56,7 @@ data:
       staleReplicaTimeout: "30"
       fromBackup: ""
       fsType: "ext4"
+      mkfsParams: ""
       dataLocality: "disabled"
 ---
 # Source: longhorn/templates/crds.yaml

examples/storageclass.yaml

@@ -11,6 +11,7 @@ parameters:
   staleReplicaTimeout: "2880"
   fromBackup: ""
   fsType: "ext4"
+  mkfsParams: "-I 512 -b 2048 -O ^metadata_csum,^64bit"
 #  backingImage: "bi-test"
 #  backingImageDataSourceType: "download"
 #  backingImageDataSourceParameters: '{"url": "https://backing-image-example.s3-region.amazonaws.com/test-backing-image"}'