move backend check interval to crd

pkg/apis/blindage/v1alpha1/redis_types.go

@@ -20,11 +20,12 @@ type RedisSpec struct {
 	PersistentVolumeSize resource.Quantity `json:"persistentVolumeSize,omitempty"` // default 1Gi
 
 	// haproxy
-	UseHAProxy           bool   `json:"useHAProxy,omitempty"`           // set true to activate HAProxy deployment
-	HAProxyImage         string `json:"haproxyImage,omitempty"`         // override default haproxy:1.9.4-alpine
-	HAProxyReplicas      *int32 `json:"haproxyReplicas,omitempty"`      // override default 1
-	HAProxyTimeoutServer int    `json:"haproxyTimeoutServer,omitempty"` // default 30
-	HAProxyTimeoutClient int    `json:"haproxyTimeoutClient,omitempty"` // default 30
+	UseHAProxy                  bool   `json:"useHAProxy,omitempty"`                  // set true to activate HAProxy deployment
+	HAProxyImage                string `json:"haproxyImage,omitempty"`                // override default haproxy:1.9.4-alpine
+	HAProxyReplicas             *int32 `json:"haproxyReplicas,omitempty"`             // override default 1
+	HAProxyTimeoutServer        int    `json:"haproxyTimeoutServer,omitempty"`        // default 30 (seconds)
+	HAProxyTimeoutClient        int    `json:"haproxyTimeoutClient,omitempty"`        // default 30 (seconds)
+	HAProxyBackendCheckInterval int    `json:"haproxyBackendCheckInterval,omitempty"` // default 1 (seconds)
 
 	// manage resources
 	PodRequests *v1.ResourceList `json:"podRequests,omitempty"`

pkg/controller/redis/redis_controller.go

@@ -266,11 +266,16 @@ done
 			return reconcile.Result{}, err
 		}
 
-		redisEndpointTemplate := "  server redis_backend_%v %v:6379 maxconn 1024 check inter 1s\n"
+		redisEndpointTemplate := "  server redis_backend_%v %v:6379 maxconn 1024 check inter %vs\n"
 		redisEndpoints := ""
 
+		haproxyBackendCheckInterval := 1
+		if instance.Spec.HAProxyBackendCheckInterval > 0 {
+			haproxyBackendCheckInterval = instance.Spec.HAProxyBackendCheckInterval
+		}
+
 		for num, ip := range podIPs {
-			redisEndpoints = redisEndpoints + fmt.Sprintf(redisEndpointTemplate, num, ip)
+			redisEndpoints = redisEndpoints + fmt.Sprintf(redisEndpointTemplate, num, ip, haproxyBackendCheckInterval)
 		}
 
 		configHaproxyConfigName := instance.Name + "-haproxy"