Add quoting to sysctls because numeric values need to be presented as strings (#5823)

Author: towolf

charts/ingress-nginx/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: ingress-nginx
-version: 2.9.0
+version: 2.9.1
 appVersion: 0.33.0
 home: https://github.com/kubernetes/ingress-nginx
 description: Ingress controller for Kubernetes using NGINX as a reverse proxy and load balancer

charts/ingress-nginx/templates/controller-daemonset.yaml

@@ -51,8 +51,8 @@ spec:
     {{- if .Values.controller.sysctls }}
         sysctls:
     {{- range $sysctl, $value := .Values.controller.sysctls }}
-        - name: {{ $sysctl }}
-          value: {{ $value }}
+        - name: {{ $sysctl | quote }}
+          value: {{ $value | quote }}
     {{- end }}
     {{- end }}
       containers:

charts/ingress-nginx/templates/controller-deployment.yaml

@@ -55,8 +55,8 @@ spec:
     {{- if .Values.controller.sysctls }}
         sysctls:
     {{- range $sysctl, $value := .Values.controller.sysctls }}
-        - name: {{ $sysctl }}
-          value: {{ $value }}
+        - name: {{ $sysctl | quote }}
+          value: {{ $value | quote }}
     {{- end }}
     {{- end }}
       containers: