remove shared cache config from helm (#8211)

Author: vepatel

charts/nginx-ingress/templates/_helpers.tpl

@@ -391,24 +391,14 @@ List of volumes for controller.
 {{- if eq (include "nginx-ingress.readOnlyRootFilesystem" .) "true" }}
 - name: nginx-etc
   emptyDir: {}
-{{- if .Values.controller.cache.enableShared }}
-- name: nginx-cache
-  persistentVolumeClaim:
-    claimName: {{ .Values.controller.cache.sharedPVCName }}
-{{- else }}
 - name: nginx-cache
   emptyDir: {}
-{{- end }}
 - name: nginx-lib
   emptyDir: {}
 - name: nginx-state
   emptyDir: {}
 - name: nginx-log
   emptyDir: {}
-{{- else if .Values.controller.cache.enableShared }}
-- name: nginx-cache
-  persistentVolumeClaim:
-    claimName: {{ .Values.controller.cache.sharedPVCName }}
 {{- end }}
 {{- if .Values.controller.appprotect.v5 }}
 {{ toYaml .Values.controller.appprotect.volumes }}
@@ -468,9 +458,6 @@ volumeMounts:
   name: nginx-state
 - mountPath: /var/log/nginx
   name: nginx-log
-{{- else if .Values.controller.cache.enableShared }}
-- mountPath: /var/cache/nginx
-  name: nginx-cache
 {{- end }}
 {{- if .Values.controller.appprotect.v5 }}
 - name: app-protect-bd-config

charts/nginx-ingress/values.yaml

@@ -168,16 +168,6 @@ controller:
   ## See https://docs.nginx.com/nginx-ingress-controller/configuration/proxy-buffers-configuration/  for more details of which configuration options are affected
   directiveAutoAdjust: false
 
-  ## Cache configuration options
-  cache:
-    ## Enables shared cache across multiple pods using an external persistent volume
-    ## When enabled, the /var/cache/nginx directory will be mounted from a PVC instead of using emptyDir
-    ## User must create and configure a PVC with appropriate access mode
-    enableShared: false
-
-    ## The name of the PersistentVolumeClaim to use for shared cache, should match the name of the PVC created by the user
-    sharedPVCName: "nginx-shared-cache"
-
   ## A list of custom ports to expose on the NGINX Ingress Controller pod. Follows the conventional Kubernetes yaml syntax for container ports.
   customPorts: []