Exemplo n.º 1
0
func (rs *REST) Create(ctx api.Context, obj runtime.Object) (runtime.Object, error) {
	service := obj.(*api.Service)

	if err := rest.BeforeCreate(Strategy, ctx, obj); err != nil {
		return nil, err
	}

	releaseServiceIP := false
	defer func() {
		if releaseServiceIP {
			if api.IsServiceIPSet(service) {
				rs.serviceIPs.Release(net.ParseIP(service.Spec.ClusterIP))
			}
		}
	}()

	nodePortOp := portallocator.StartOperation(rs.serviceNodePorts)
	defer nodePortOp.Finish()

	if api.IsServiceIPRequested(service) {
		// Allocate next available.
		ip, err := rs.serviceIPs.AllocateNext()
		if err != nil {
			el := fielderrors.ValidationErrorList{fielderrors.NewFieldInvalid("spec.clusterIP", service.Spec.ClusterIP, err.Error())}
			return nil, errors.NewInvalid("Service", service.Name, el)
		}
		service.Spec.ClusterIP = ip.String()
		releaseServiceIP = true
	} else if api.IsServiceIPSet(service) {
		// Try to respect the requested IP.
		if err := rs.serviceIPs.Allocate(net.ParseIP(service.Spec.ClusterIP)); err != nil {
			el := fielderrors.ValidationErrorList{fielderrors.NewFieldInvalid("spec.clusterIP", service.Spec.ClusterIP, err.Error())}
			return nil, errors.NewInvalid("Service", service.Name, el)
		}
		releaseServiceIP = true
	}

	assignNodePorts := shouldAssignNodePorts(service)
	for i := range service.Spec.Ports {
		servicePort := &service.Spec.Ports[i]
		if servicePort.NodePort != 0 {
			err := nodePortOp.Allocate(servicePort.NodePort)
			if err != nil {
				el := fielderrors.ValidationErrorList{fielderrors.NewFieldInvalid("nodePort", servicePort.NodePort, err.Error())}.PrefixIndex(i).Prefix("spec.ports")
				return nil, errors.NewInvalid("Service", service.Name, el)
			}
		} else if assignNodePorts {
			nodePort, err := nodePortOp.AllocateNext()
			if err != nil {
				el := fielderrors.ValidationErrorList{fielderrors.NewFieldInvalid("nodePort", servicePort.NodePort, err.Error())}.PrefixIndex(i).Prefix("spec.ports")
				return nil, errors.NewInvalid("Service", service.Name, el)
			}
			servicePort.NodePort = nodePort
		}
	}

	out, err := rs.registry.CreateService(ctx, service)
	if err != nil {
		err = rest.CheckGeneratedNameError(Strategy, err, service)
	}

	if err == nil {
		el := nodePortOp.Commit()
		if el != nil {
			// these should be caught by an eventual reconciliation / restart
			glog.Errorf("error(s) committing service node-ports changes: %v", el)
		}

		releaseServiceIP = false
	}

	return out, err
}
Exemplo n.º 2
0
func (rs *REST) Create(ctx api.Context, obj runtime.Object) (runtime.Object, error) {
	service := obj.(*api.Service)

	if err := rest.BeforeCreate(Strategy, ctx, obj); err != nil {
		return nil, err
	}

	// TODO: this should probably move to strategy.PrepareForCreate()
	releaseServiceIP := false
	defer func() {
		if releaseServiceIP {
			if api.IsServiceIPSet(service) {
				rs.serviceIPs.Release(net.ParseIP(service.Spec.ClusterIP))
			}
		}
	}()

	nodePortOp := portallocator.StartOperation(rs.serviceNodePorts)
	defer nodePortOp.Finish()

	if api.IsServiceIPRequested(service) {
		// Allocate next available.
		ip, err := rs.serviceIPs.AllocateNext()
		if err != nil {
			// TODO: what error should be returned here?  It's not a
			// field-level validation failure (the field is valid), and it's
			// not really an internal error.
			return nil, errors.NewInternalError(fmt.Errorf("failed to allocate a serviceIP: %v", err))
		}
		service.Spec.ClusterIP = ip.String()
		releaseServiceIP = true
	} else if api.IsServiceIPSet(service) {
		// Try to respect the requested IP.
		if err := rs.serviceIPs.Allocate(net.ParseIP(service.Spec.ClusterIP)); err != nil {
			// TODO: when validation becomes versioned, this gets more complicated.
			el := field.ErrorList{field.Invalid(field.NewPath("spec", "clusterIP"), service.Spec.ClusterIP, err.Error())}
			return nil, errors.NewInvalid("Service", service.Name, el)
		}
		releaseServiceIP = true
	}

	assignNodePorts := shouldAssignNodePorts(service)
	for i := range service.Spec.Ports {
		servicePort := &service.Spec.Ports[i]
		if servicePort.NodePort != 0 {
			err := nodePortOp.Allocate(servicePort.NodePort)
			if err != nil {
				// TODO: when validation becomes versioned, this gets more complicated.
				el := field.ErrorList{field.Invalid(field.NewPath("spec", "ports").Index(i).Child("nodePort"), servicePort.NodePort, err.Error())}
				return nil, errors.NewInvalid("Service", service.Name, el)
			}
		} else if assignNodePorts {
			nodePort, err := nodePortOp.AllocateNext()
			if err != nil {
				// TODO: what error should be returned here?  It's not a
				// field-level validation failure (the field is valid), and it's
				// not really an internal error.
				return nil, errors.NewInternalError(fmt.Errorf("failed to allocate a nodePort: %v", err))
			}
			servicePort.NodePort = nodePort
		}
	}

	out, err := rs.registry.CreateService(ctx, service)
	if err != nil {
		err = rest.CheckGeneratedNameError(Strategy, err, service)
	}

	if err == nil {
		el := nodePortOp.Commit()
		if el != nil {
			// these should be caught by an eventual reconciliation / restart
			glog.Errorf("error(s) committing service node-ports changes: %v", el)
		}

		releaseServiceIP = false
	}

	return out, err
}
Exemplo n.º 3
0
func (rs *REST) Create(ctx api.Context, obj runtime.Object) (runtime.Object, error) {
	service := obj.(*api.Service)

	if err := rest.BeforeCreate(Strategy, ctx, obj); err != nil {
		return nil, err
	}

	// TODO: this should probably move to strategy.PrepareForCreate()
	releaseServiceIP := false
	defer func() {
		if releaseServiceIP {
			if api.IsServiceIPSet(service) {
				rs.serviceIPs.Release(net.ParseIP(service.Spec.ClusterIP))
			}
		}
	}()

	nodePortOp := portallocator.StartOperation(rs.serviceNodePorts)
	defer nodePortOp.Finish()

	if api.IsServiceIPRequested(service) {
		// Allocate next available.
		ip, err := rs.serviceIPs.AllocateNext()
		if err != nil {
			// TODO: what error should be returned here?  It's not a
			// field-level validation failure (the field is valid), and it's
			// not really an internal error.
			return nil, errors.NewInternalError(fmt.Errorf("failed to allocate a serviceIP: %v", err))
		}
		service.Spec.ClusterIP = ip.String()
		releaseServiceIP = true
	} else if api.IsServiceIPSet(service) {
		// Try to respect the requested IP.
		if err := rs.serviceIPs.Allocate(net.ParseIP(service.Spec.ClusterIP)); err != nil {
			// TODO: when validation becomes versioned, this gets more complicated.
			el := field.ErrorList{field.Invalid(field.NewPath("spec", "clusterIP"), service.Spec.ClusterIP, err.Error())}
			return nil, errors.NewInvalid(api.Kind("Service"), service.Name, el)
		}
		releaseServiceIP = true
	}

	assignNodePorts := shouldAssignNodePorts(service)
	svcPortToNodePort := map[int]int{}
	for i := range service.Spec.Ports {
		servicePort := &service.Spec.Ports[i]
		allocatedNodePort := svcPortToNodePort[int(servicePort.Port)]
		if allocatedNodePort == 0 {
			// This will only scan forward in the service.Spec.Ports list because any matches
			// before the current port would have been found in svcPortToNodePort. This is really
			// looking for any user provided values.
			np := findRequestedNodePort(int(servicePort.Port), service.Spec.Ports)
			if np != 0 {
				err := nodePortOp.Allocate(np)
				if err != nil {
					// TODO: when validation becomes versioned, this gets more complicated.
					el := field.ErrorList{field.Invalid(field.NewPath("spec", "ports").Index(i).Child("nodePort"), np, err.Error())}
					return nil, errors.NewInvalid(api.Kind("Service"), service.Name, el)
				}
				servicePort.NodePort = int32(np)
				svcPortToNodePort[int(servicePort.Port)] = np
			} else if assignNodePorts {
				nodePort, err := nodePortOp.AllocateNext()
				if err != nil {
					// TODO: what error should be returned here?  It's not a
					// field-level validation failure (the field is valid), and it's
					// not really an internal error.
					return nil, errors.NewInternalError(fmt.Errorf("failed to allocate a nodePort: %v", err))
				}
				servicePort.NodePort = int32(nodePort)
				svcPortToNodePort[int(servicePort.Port)] = nodePort
			}
		} else if int(servicePort.NodePort) != allocatedNodePort {
			if servicePort.NodePort == 0 {
				servicePort.NodePort = int32(allocatedNodePort)
			} else {
				err := nodePortOp.Allocate(int(servicePort.NodePort))
				if err != nil {
					// TODO: when validation becomes versioned, this gets more complicated.
					el := field.ErrorList{field.Invalid(field.NewPath("spec", "ports").Index(i).Child("nodePort"), servicePort.NodePort, err.Error())}
					return nil, errors.NewInvalid(api.Kind("Service"), service.Name, el)
				}
			}
		}
	}

	if shouldCheckOrAssignHealthCheckNodePort(service) {
		var healthCheckNodePort int
		var err error
		if l, ok := service.Annotations[apiservice.AnnotationHealthCheckNodePort]; ok {
			healthCheckNodePort, err = strconv.Atoi(l)
			if err != nil || healthCheckNodePort <= 0 {
				return nil, errors.NewInternalError(fmt.Errorf("Failed to parse annotation %v: %v", apiservice.AnnotationHealthCheckNodePort, err))
			}
		}
		if healthCheckNodePort > 0 {
			// If the request has a health check nodePort in mind, attempt to reserve it
			err := nodePortOp.Allocate(int(healthCheckNodePort))
			if err != nil {
				return nil, errors.NewInternalError(fmt.Errorf("Failed to allocate requested HealthCheck nodePort %v: %v", healthCheckNodePort, err))
			}
		} else {
			// If the request has no health check nodePort specified, allocate any
			healthCheckNodePort, err = nodePortOp.AllocateNext()
			if err != nil {
				// TODO: what error should be returned here?  It's not a
				// field-level validation failure (the field is valid), and it's
				// not really an internal error.
				return nil, errors.NewInternalError(fmt.Errorf("failed to allocate a nodePort: %v", err))
			}
			// Insert the newly allocated health check port as an annotation (plan of record for Alpha)
			service.Annotations[apiservice.AnnotationHealthCheckNodePort] = fmt.Sprintf("%d", healthCheckNodePort)
		}
	}

	out, err := rs.registry.CreateService(ctx, service)
	if err != nil {
		err = rest.CheckGeneratedNameError(Strategy, err, service)
	}

	if err == nil {
		el := nodePortOp.Commit()
		if el != nil {
			// these should be caught by an eventual reconciliation / restart
			glog.Errorf("error(s) committing service node-ports changes: %v", el)
		}

		releaseServiceIP = false
	}

	return out, err
}