func (rs *REST) Create(ctx api.Context, obj runtime.Object) (runtime.Object, error) {
service := obj.(*api.Service)
if err := rest.BeforeCreate(rest.Services, 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(rest.Services, 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
}
func (rs *REST) Update(ctx api.Context, obj runtime.Object) (runtime.Object, bool, error) {
service := obj.(*api.Service)
if !api.ValidNamespace(ctx, &service.ObjectMeta) {
return nil, false, errors.NewConflict("service", service.Namespace, fmt.Errorf("Service.Namespace does not match the provided context"))
}
oldService, err := rs.registry.GetService(ctx, service.Name)
if err != nil {
return nil, false, err
}
// Copy over non-user fields
// TODO: make this a merge function
if errs := validation.ValidateServiceUpdate(oldService, service); len(errs) > 0 {
return nil, false, errors.NewInvalid("service", service.Name, errs)
}
nodePortOp := portallocator.StartOperation(rs.serviceNodePorts)
defer nodePortOp.Finish()
assignNodePorts := shouldAssignNodePorts(service)
oldNodePorts := CollectServiceNodePorts(oldService)
newNodePorts := []int{}
if assignNodePorts {
for i := range service.Spec.Ports {
servicePort := &service.Spec.Ports[i]
nodePort := servicePort.NodePort
if nodePort != 0 {
if !contains(oldNodePorts, nodePort) {
err := nodePortOp.Allocate(nodePort)
if err != nil {
el := fielderrors.ValidationErrorList{fielderrors.NewFieldInvalid("nodePort", nodePort, err.Error())}.PrefixIndex(i).Prefix("spec.ports")
return nil, false, errors.NewInvalid("Service", service.Name, el)
}
}
} else {
nodePort, err = nodePortOp.AllocateNext()
if err != nil {
el := fielderrors.ValidationErrorList{fielderrors.NewFieldInvalid("nodePort", nodePort, err.Error())}.PrefixIndex(i).Prefix("spec.ports")
return nil, false, errors.NewInvalid("Service", service.Name, el)
}
servicePort.NodePort = nodePort
}
// Detect duplicate node ports; this should have been caught by validation, so we panic
if contains(newNodePorts, nodePort) {
panic("duplicate node port")
}
newNodePorts = append(newNodePorts, nodePort)
}
} else {
// Validate should have validated that nodePort == 0
}
// The comparison loops are O(N^2), but we don't expect N to be huge
// (there's a hard-limit at 2^16, because they're ports; and even 4 ports would be a lot)
for _, oldNodePort := range oldNodePorts {
if !contains(newNodePorts, oldNodePort) {
continue
}
nodePortOp.ReleaseDeferred(oldNodePort)
}
// Remove any LoadBalancerStatus now if Type != LoadBalancer;
// although loadbalancer delete is actually asynchronous, we don't need to expose the user to that complexity.
if service.Spec.Type != api.ServiceTypeLoadBalancer {
service.Status.LoadBalancer = api.LoadBalancerStatus{}
}
out, err := rs.registry.UpdateService(ctx, service)
if err == nil {
el := nodePortOp.Commit()
if el != nil {
// problems should be fixed by an eventual reconciliation / restart
glog.Errorf("error(s) committing NodePorts changes: %v", el)
}
}
return out, false, err
}