Scale up webhook deployment to 3 replicas (#710)

Author: alexeykazakov

deploy/templates/webhook/member-operator-webhook.yaml

@@ -97,7 +97,7 @@ objects:
       app: member-operator-webhook
       toolchain.dev.openshift.com/provider: codeready-toolchain
   spec:
-    replicas: 1
+    replicas: 3
     selector:
       matchLabels:
         app: member-operator-webhook

pkg/webhook/deploy/deployment_test.go

@@ -219,7 +219,7 @@ func service(namespace string) string {
 }
 
 func deployment(namespace, sa string, image string) string {
-	return fmt.Sprintf(`{"apiVersion":"apps/v1","kind":"Deployment","metadata":{"name":"member-operator-webhook","namespace":"%s","labels":{"app":"member-operator-webhook","toolchain.dev.openshift.com/provider":"codeready-toolchain"}},"spec":{"replicas":1,"selector":{"matchLabels":{"app":"member-operator-webhook"}},"template":{"metadata":{"name":"member-operator-webhook","labels":{"app":"member-operator-webhook"}},"spec":{"serviceAccountName": "%s","containers":[{"name":"mutator","image":"%s","command":["member-operator-webhook"],"imagePullPolicy":"IfNotPresent","env":[{"name":"WATCH_NAMESPACE","valueFrom":{"fieldRef":{"fieldPath":"metadata.namespace"}}}],"resources":{"requests":{"cpu":"75m","memory":"128Mi"}},"volumeMounts":[{"name":"webhook-certs","mountPath":"/etc/webhook/certs","readOnly":true}]}],"volumes":[{"name":"webhook-certs","secret":{"secretName":"webhook-certs"}}]}}}}`, namespace, sa, image)
+	return fmt.Sprintf(`{"apiVersion":"apps/v1","kind":"Deployment","metadata":{"name":"member-operator-webhook","namespace":"%s","labels":{"app":"member-operator-webhook","toolchain.dev.openshift.com/provider":"codeready-toolchain"}},"spec":{"replicas":3,"selector":{"matchLabels":{"app":"member-operator-webhook"}},"template":{"metadata":{"name":"member-operator-webhook","labels":{"app":"member-operator-webhook"}},"spec":{"serviceAccountName": "%s","containers":[{"name":"mutator","image":"%s","command":["member-operator-webhook"],"imagePullPolicy":"IfNotPresent","env":[{"name":"WATCH_NAMESPACE","valueFrom":{"fieldRef":{"fieldPath":"metadata.namespace"}}}],"resources":{"requests":{"cpu":"75m","memory":"128Mi"}},"volumeMounts":[{"name":"webhook-certs","mountPath":"/etc/webhook/certs","readOnly":true}]}],"volumes":[{"name":"webhook-certs","secret":{"secretName":"webhook-certs"}}]}}}}`, namespace, sa, image)
 }
 
 func mutatingWebhookConfig(namespace, caBundle string) string {