globalDNSCache = &dnscache.Resolver{
		Timeout: 5 * time.Second,
	}

	globalForwarder *handlers.Forwarder

	globalTierConfigMgr *TierConfigMgr

	globalConsoleSrv *consoleapi.Server

	// handles service freeze or un-freeze S3 API calls.
	globalServiceFreeze atomic.Value

	// Only needed for tracking
	globalServiceFreezeCnt int32
	globalServiceFreezeMu  sync.Mutex // Updates.

			{
				Description: MetricDescription{
					Namespace: nodeMetricNamespace,
					Subsystem: iamSubsystem,
					Name:      "plugin_authn_service_last_succ_seconds",
					Help:      "When plugin authentication is configured, returns time (in seconds) since the last successful request to the service",
					Type:      gaugeMetric,
				},
				Value: pluginAuthNMetrics.LastReachableSecs,
			},
			{

	srv.listener = listener
	srv.listenerMutex.Unlock()

	var l net.Listener = listener
	if tlsConfig != nil {
		l = tls.NewListener(listener, tlsConfig)
	}

	serve = func() error {
		return srv.Server.Serve(l)
	}

	return
}

// Shutdown - shuts down HTTP server.
func (srv *Server) Shutdown() error {
	srv.listenerMutex.Lock()
	if srv.listener == nil {

func IsKubernetes() bool {
	// Kubernetes env used to validate if we are
	// indeed running inside a kubernetes pod
	// is KUBERNETES_SERVICE_HOST
	// https://github.com/kubernetes/kubernetes/blob/master/pkg/kubelet/kubelet_pods.go#L541
	return env.Get("KUBERNETES_SERVICE_HOST", "") != ""
}

// IsBOSH returns true if minio is deployed from a bosh package
func IsBOSH() bool {

	owner := cred.AccessKey == globalActiveCred.AccessKey || (cred.ParentUser == globalActiveCred.AccessKey && cred.AccessKey != siteReplicatorSvcAcc)
	if owner && !globalAPIConfig.permitRootAccess() {
		// We disable root access and its service accounts if asked for.
		return cred, owner, ErrAccessKeyDisabled
	}

	if _, ok := claims[policy.SessionPolicyName]; ok {
		owner = false
	}

	return cred, owner, ErrNone
}

      the terms of any separate license agreement you may have executed
      with Licensor regarding such Contributions.

   6. Trademarks. This License does not grant permission to use the trade
      names, trademarks, service marks, or product names of the Licensor,
      except as required for reasonable and customary use in describing the
      origin of the Work and reproducing the content of the NOTICE file.

(or (eq .Values.service.type "ClusterIP" "") (empty .Values.service.type)) }} type: ClusterIP {{- if not (empty .Values.service.clusterIP) }} clusterIP: {{ .Values.service.clusterIP }} {{- end }} {{- else if eq .Values.service.type "LoadBalancer" }} type: {{ .Values.service.type }} loadBalancerIP: {{ default "" .Values.service.loadBalancerIP }} {{- else }} type: {{ .Values.service.type }} {{- end }} ports: - name: {{ $scheme }} port: {{ .Values.service.port }} protocol: TCP {{- if (and (eq .Values.service.type...

(or (eq .Values.service.type "ClusterIP" "") (empty .Values.service.type)) }} type: ClusterIP {{- if not (empty .Values.service.clusterIP) }} clusterIP: {{ .Values.service.clusterIP }} {{- end }} {{- else if eq .Values.service.type "LoadBalancer" }} type: {{ .Values.service.type }} loadBalancerIP: {{ default "" .Values.service.loadBalancerIP }} {{- else }} type: {{ .Values.service.type }} {{- end }} ports: - name: {{ $scheme }} port: {{ .Values.service.port }} protocol: TCP {{- if (and (eq .Values.service.type...

  failureThreshold: 3
```

## Cluster probe

### Cluster-writeable probe

The reply is '200 OK' if cluster has write quorum if not it returns '503 Service Unavailable'.

```
curl http://minio1:9001/minio/health/cluster
HTTP/1.1 503 Service Unavailable
Accept-Ranges: bytes
Content-Length: 0
Server: MinIO
Vary: Origin
X-Amz-Bucket-Region: us-east-1
X-Minio-Write-Quorum: 3

(or (eq .Values.service.type "ClusterIP" "") (empty .Values.service.type)) }} type: ClusterIP {{- if not (empty .Values.service.clusterIP) }} clusterIP: {{ .Values.service.clusterIP }} {{- end }} {{- else if eq .Values.service.type "LoadBalancer" }} type: {{ .Values.service.type }} loadBalancerIP: {{ default "" .Values.service.loadBalancerIP }} {{- else }} type: {{ .Values.service.type }} {{- end }} ports: - name: {{ $scheme }} port: {{ .Values.service.port }} protocol: TCP {{- if (and (eq .Values.service.type...