chore(ui): modify Affinity of UI for helm chart

Change the number of the replica from 1 to 2 for helm chart

Ref: 4987

Signed-off-by: James Lu <james.lu@suse.com>

chart/templates/deployment-ui.yaml

@@ -15,6 +15,18 @@ spec:
       labels: {{- include "longhorn.labels" . | nindent 8 }}
         app: longhorn-ui
     spec:
+      affinity:
+        podAntiAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - weight: 1
+            podAffinityTerm:
+              labelSelector:
+                matchExpressions:
+                - key: app
+                  operator: In
+                  values:
+                  - longhorn-ui
+              topologyKey: kubernetes.io/hostname
       containers:
       - name: longhorn-ui
         image: {{ template "registry_url" . }}{{ .Values.image.longhorn.ui.repository }}:{{ .Values.image.longhorn.ui.tag }}

chart/values.yaml

@@ -203,7 +203,7 @@ longhornDriver:
   #  label-key2: "label-value2"
 
 longhornUI:
-  replicas: 1
+  replicas: 2
   priorityClass: ~
   tolerations: []
   ## If you want to set tolerations for Longhorn UI Deployment, delete the `[]` in the line above