expectedError:       nil,
		},
		{
			desc:                "Unhealthy - 500 status code",
			statusCode:          500,
			expectedProbeResult: Unhealthy,
			expectedError:       errors.New("status code was not from [200,400)"),
		},
		{
			desc:                "Unhealthy - Could not connect to server",
			statusCode:          -1,
			expectedProbeResult: Unhealthy,

	fs.Float32Var(&o.SecondaryNodeEvictionRate, "secondary-node-eviction-rate", 0.01, "Number of nodes per second on which pods are deleted in case of node failure when a zone is unhealthy (see --unhealthy-zone-threshold for definition of healthy/unhealthy). Zone refers to entire cluster in non-multizone clusters. This...

	SecondaryNodeEvictionRate float32
	// nodeStartupGracePeriod is the amount of time which we allow starting a node to
	// be unresponsive before marking it unhealthy.
	NodeStartupGracePeriod metav1.Duration
	// NodeMonitorGracePeriod is the amount of time which we allow a running node to be
	// unresponsive before marking it unhealthy. Must be N times more than kubelet's

	// target was healthy.
	Probe(timeout time.Duration) (ProbeResult, error)
}

type ProbeResult string

const (
	Healthy   ProbeResult = "HEALTHY"
	Unhealthy ProbeResult = "UNHEALTHY"
	Unknown   ProbeResult = "UNKNOWN"
)

func (p *ProbeResult) IsHealthy() bool {
	return *p == Healthy
}

type HTTPProber struct {
	Config    *v1alpha3.HTTPHealthCheckConfig

	erasureSetReadHealthMD = NewGaugeMD(erasureSetReadHealth,
		"Health of the erasure set in a pool for read operations (1=healthy, 0=unhealthy)",
		poolIDL, setIDL)
	erasureSetWriteHealthMD = NewGaugeMD(erasureSetWriteHealth,
		"Health of the erasure set in a pool for write operations (1=healthy, 0=unhealthy)",
		poolIDL, setIDL)
)

func b2f(v bool) float64 {
	if v {
		return 1
	}
	return 0
}

    args = {
      service_version = "v-unavailable"
    }
    source = "ratings"
  },
  {
    name = "examples-bookinfo-ratings-v-unhealthy"
    args = {
      service_version = "v-unhealthy"
    }
    source = "ratings"
  },

  // mysql
  {
    name   = "examples-bookinfo-mysqldb"
    source = "mysql"
  },

  // mongo
  {

/**
 * A {@link DaemonExpirationStrategy} which monitors daemon health and expires the daemon
 * whenever unhealthy conditions are detected. Currently, this strategy monitors JVM memory
 * health by detecting GC thrashing and excessive heap or metaspace usage. In addition to
 * expiring the daemon, whenever unhealthy conditions are detected, this strategy will
 * print a warning log to the console informing the user of the issue and instructing them

				lastState = lastStateHealthy
			}
		} else {
			healthCheckLog.Debugf("probe completed with unhealthy status: %v", err)
			// we were not healthy, increment fail counter
			numFail++
			// wipe numSuccess (need consecutive failure)
			numSuccess = 0
			// if we reached the fail threshold, mark the target as unhealthy
			if numFail == w.config.FailThresh && lastState != lastStateUnhealthy {

	// by specifying 0. This is a mutually exclusive setting with "minAvailable".
	// +optional
	MaxUnavailable *intstr.IntOrString

	// UnhealthyPodEvictionPolicy defines the criteria for when unhealthy pods
	// should be considered for eviction. Current implementation considers healthy pods,
	// as pods that have status.conditions item with type="Ready",status="True".
	//
	// Valid policies are IfHealthyBudget and AlwaysAllow.

	// health checks are enabled.
	// If this annotation is present, a WorkloadEntry with the condition Healthy=False or Healthy not set
	// should be treated as unhealthy and not sent to proxies
	WorkloadEntryHealthCheckAnnotation = "proxy.istio.io/health-checks-enabled"

	// ConditionHealthy defines a status field to declare if a WorkloadEntry is healthy or not
	ConditionHealthy = "Healthy"