address review comments

Author: Rahul Sharma

cloud/linode/cloud.go

@@ -35,7 +35,7 @@ var Options struct {
 	KubeconfigFlag        *pflag.Flag
 	LinodeGoDebug         bool
 	EnableRouteController bool
-	// deprecated: use VPCNames instead
+	// Deprecated: use VPCNames instead
 	VPCName               string
 	VPCNames              string
 	LoadBalancerType      string

deploy/chart/templates/daemonset.yaml

@@ -38,6 +38,12 @@ spec:
             {{- end }}
             {{- if .Values.routeController }}
             - --enable-route-controller=true
+            {{- if and .Values.routeController.vpcName .Values.routeController.vpcNames }}
+            {{- fail "Both vpcName and vpcNames are set. Please use only vpcNames." }}
+            {{- end }}
+            {{- if not (or .Values.routeController.vpcName .Values.routeController.vpcNames) }}
+            {{- fail "Neither vpcName nor vpcNames is set. Please set one of them." }}
+            {{- end }}
             {{- if .Values.routeController.vpcName }}
             - --vpc-name={{ .Values.routeController.vpcName }}
             {{- end }}