minorfix: set default fluid file prefetcher sidecar image (#5161)

* minorfix: set default fluid file prefetcher sidecar image

Signed-off-by: trafalgarzzz <trafalgarz@outlook.com>

* Promote FilePrefetcher plugin to 1st place to make it work

Signed-off-by: trafalgarzzz <trafalgarz@outlook.com>

---------

Signed-off-by: trafalgarzzz <trafalgarz@outlook.com>

Author: TrafalgarZZZ

charts/fluid/fluid/templates/webhook/webhook.yaml

@@ -55,6 +55,10 @@ spec:
             value: {{ .Values.webhook.serverlessInject.vfuseResourceName | quote }}
           {{- end }}
           {{- end }}
+          {{- if .Values.webhook.filePrefetcher }}
+          - name: FILE_PREFETCHR_IMAGE
+            value: {{ include "fluid.controlplane.imageTransform" (list .Values.webhook.filePrefetcher.imagePrefix .Values.webhook.filePrefetcher.imageName .Values.webhook.filePrefetcher.imageTag . ) }}
+          {{- end }}
         ports:
           - containerPort: 8080
             name: metrics

charts/fluid/fluid/values.yaml

@@ -350,26 +350,31 @@ webhook:
   #     cpu: 1000m
   #     memory: 512Mi
 
+  # TODO: move this into pluginsProfile
+  filePrefetcher:
+    imagePrefix: *defaultImagePrefix
+    imageName: fluid-file-prefetcher
+    imageTag: v0.1.0
   # if configmap `webhook-plugins` exists and not want to replace the content, set this to false.
   forceReplacePluginsProfile: false
   pluginsProfile:
     plugins:
       # serverful webhook plugins
       serverful:
         withDataset:
+          - FilePrefetcher
           - RequireNodeWithFuse
           - NodeAffinityWithCache
           - MountPropagationInjector
           - DatasetUsageInjector
-          - FilePrefetcher
         withoutDataset:
           - PreferNodesWithoutCache
       # serverless webhook plugins
       serverless:
         withDataset:
+          - FilePrefetcher
           - FuseSidecar
           - DatasetUsageInjector
-          - FilePrefetcher
         withoutDataset: []
     pluginConfig:
       - name: NodeAffinityWithCache