}
		// Listen on the given port and update the port if it changed from what was passed in.
		listener, port, err = listenOnAddressTLS(c.ListenerIP, c.Port.Port, config)
		// Store the actual listening port back to the argument.
		c.Port.Port = port
	} else {
		// Listen on the given port and update the port if it changed from what was passed in.
		listener, port, err = listenOnAddress(c.ListenerIP, c.Port.Port)

		klog.Warningf("port is not in the range when release it. port: %v", port)
		return nil
	}

	err := r.alloc.Release(offset)
	if err == nil {
		// update metrics
		r.metrics.setAllocated(r.Used())
		r.metrics.setAvailable(r.Free())
	}
	return err
}

// Has returns true if the provided port is already allocated and a call
// to Allocate(port) would fail with ErrAllocated.
func (r *PortAllocator) Has(port int) bool {

          failureThreshold: 10
        livenessProbe:
          tcpSocket:
            port: tcp-health-port
          initialDelaySeconds: 10
          periodSeconds: 10
          failureThreshold: 10
        startupProbe:
          tcpSocket:
            port: tcp-health-port
          periodSeconds: 1
          failureThreshold: 10
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: multiversion-v-legacy

			port:   basePortRange + sizePortRange,
			errMsg: fmt.Sprintf("provided port is not in the valid range. The range of valid ports is %d-%d", basePortRange, basePortRange+sizePortRange-1),
		},
		{
			name:   "Allocate invalid port",
			port:   -2,

  creationTimestamp: null
  name: echo-port-0-istio-autogenerated-k8s-gateway
  namespace: default
spec:
  gateways:
  - mesh
  hosts:
  - echo-port.default.svc.domain.suffix
  http:
  - match:
    - port: 80
    name: default.echo-port.0
    route:
    - destination:
        host: echo.default.svc.domain.suffix
        port:
          number: 80
---
apiVersion: networking.istio.io/v1alpha3

            # on this list. Setting this to the health check port will ensure that health
            # checks always work. https://github.com/istio/istio/issues/12503
            - port: 15021
              targetPort: 15021
              name: status-port
            - port: 80
              targetPort: 8080
              name: http2
            - port: 443
              targetPort: 8443

	// Then generate the per-port passthrough filter chains.
	for port := range b.applier.PortLevelSetting() {
		// Skip the per-port passthrough filterchain if the port is already handled by InboundMTLSConfiguration().
		if !needPerPortPassthroughFilterChain(port, b.proxy) {
			continue
		}

		authnLog.Debugf("InboundMTLSConfiguration: build extra pass through filter chain for %v:%d", b.proxy.ID, port)

            path: /
            port: 8080
          initialDelaySeconds: 1
          periodSeconds: 2
          failureThreshold: 10
        livenessProbe:
          tcpSocket:
            port: tcp-health-port
          initialDelaySeconds: 10
          periodSeconds: 10
          failureThreshold: 10
        startupProbe:
          tcpSocket:
            port: tcp-health-port
          periodSeconds: 1

	var listener net.PacketConn
	var port int
	var err error
	if s.Port.TLS {
		return fmt.Errorf("TLS not supported for UDP")
	}
	// Listen on the given port and update the port if it changed from what was passed in.
	listener, port, err = listenUDPAddress(s.ListenerIP, s.Port.Port)
	// Store the actual listening port back to the argument.
	s.Port.Port = port
	if err != nil {
		return err
	}

	s.l = listener

					Protocol: service1.Ports[1].Protocol,
				},
				Endpoint: &IstioEndpoint{
					Address:      "192.168.1.2",
					EndpointPort: uint32(service1.Ports[1].Port),
				},
			},
		},
		{
			name: "endpoint port and protocol mismatch",
			instance: &ServiceInstance{
				Service: service1,
				ServicePort: &Port{
					Name:     "http",
					Port:     service1.Ports[1].Port + 1,