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Remove unused and un-enable-able apiserver multiple ports feature

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Theoretically, the apiserver could be told to advertise additional
ports on the kubernetes service, but there was no way to enable this
functionality without forking/vendoring the apiserver code. This was
apparently added in the distant past for OpenShift to use, but it has
not been used in OpenShift since Kubernetes 1.11.
This commit is contained in:
Dan Winship 2022-01-28 14:44:37 -05:00
parent ad06854e5e
commit c44f5467a2
2 changed files with 17 additions and 36 deletions
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42
pkg/controlplane/controller.go
View File

@ -82,8 +82,6 @@ type Controller struct {
// ServiceIP indicates where the kubernetes service will live. It may not be nil.
ServiceIP net.IP
ServicePort int
ExtraServicePorts []corev1.ServicePort
ExtraEndpointPorts []corev1.EndpointPort
PublicServicePort int
KubernetesServiceNodePort int
@ -137,8 +135,6 @@ func (c *completedConfig) NewBootstrapController(legacyRESTStorage corerest.Lega
ServiceIP: c.ExtraConfig.APIServerServiceIP,
ServicePort: c.ExtraConfig.APIServerServicePort,
ExtraServicePorts: c.ExtraConfig.ExtraServicePorts,
ExtraEndpointPorts: c.ExtraConfig.ExtraEndpointPorts,
PublicServicePort: publicServicePort,
KubernetesServiceNodePort: c.ExtraConfig.KubernetesServiceNodePort,
}, nil
@ -164,7 +160,7 @@ func (c *Controller) Start() {
}
// Reconcile during first run removing itself until server is ready.
endpointPorts := createEndpointPortSpec(c.PublicServicePort, "https", c.ExtraEndpointPorts)
endpointPorts := createEndpointPortSpec(c.PublicServicePort, "https")
if err := c.EndpointReconciler.RemoveEndpoints(kubernetesServiceName, c.PublicIP, endpointPorts); err == nil {
klog.Error("Found stale data, removed previous endpoints on kubernetes service, apiserver didn't exit successfully previously")
} else if !storage.IsNotFound(err) {
@ -216,7 +212,7 @@ func (c *Controller) Stop() {
if c.runner != nil {
c.runner.Stop()
}
endpointPorts := createEndpointPortSpec(c.PublicServicePort, "https", c.ExtraEndpointPorts)
endpointPorts := createEndpointPortSpec(c.PublicServicePort, "https")
finishedReconciling := make(chan struct{})
go func() {
defer close(finishedReconciling)
@ -278,11 +274,11 @@ func (c *Controller) UpdateKubernetesService(reconcile bool) error {
return err
}
servicePorts, serviceType := createPortAndServiceSpec(c.ServicePort, c.PublicServicePort, c.KubernetesServiceNodePort, "https", c.ExtraServicePorts)
servicePorts, serviceType := createPortAndServiceSpec(c.ServicePort, c.PublicServicePort, c.KubernetesServiceNodePort, "https")
if err := c.CreateOrUpdateMasterServiceIfNeeded(kubernetesServiceName, c.ServiceIP, servicePorts, serviceType, reconcile); err != nil {
return err
}
endpointPorts := createEndpointPortSpec(c.PublicServicePort, "https", c.ExtraEndpointPorts)
endpointPorts := createEndpointPortSpec(c.PublicServicePort, "https")
if err := c.EndpointReconciler.ReconcileEndpoints(kubernetesServiceName, c.PublicIP, endpointPorts, reconcile); err != nil {
return err
}
@ -291,34 +287,30 @@ func (c *Controller) UpdateKubernetesService(reconcile bool) error {
// createPortAndServiceSpec creates an array of service ports.
// If the NodePort value is 0, just the servicePort is used, otherwise, a node port is exposed.
func createPortAndServiceSpec(servicePort int, targetServicePort int, nodePort int, servicePortName string, extraServicePorts []corev1.ServicePort) ([]corev1.ServicePort, corev1.ServiceType) {
//Use the Cluster IP type for the service port if NodePort isn't provided.
//Otherwise, we will be binding the master service to a NodePort.
servicePorts := []corev1.ServicePort{{Protocol: corev1.ProtocolTCP,
func createPortAndServiceSpec(servicePort int, targetServicePort int, nodePort int, servicePortName string) ([]corev1.ServicePort, corev1.ServiceType) {
// Use the Cluster IP type for the service port if NodePort isn't provided.
// Otherwise, we will be binding the master service to a NodePort.
servicePorts := []corev1.ServicePort{{
Protocol: corev1.ProtocolTCP,
Port: int32(servicePort),
Name: servicePortName,
TargetPort: intstr.FromInt(targetServicePort)}}
TargetPort: intstr.FromInt(targetServicePort),
}}
serviceType := corev1.ServiceTypeClusterIP
if nodePort > 0 {
servicePorts[0].NodePort = int32(nodePort)
serviceType = corev1.ServiceTypeNodePort
}
if extraServicePorts != nil {
servicePorts = append(servicePorts, extraServicePorts...)
}
return servicePorts, serviceType
}
// createEndpointPortSpec creates an array of endpoint ports
func createEndpointPortSpec(endpointPort int, endpointPortName string, extraEndpointPorts []corev1.EndpointPort) []corev1.EndpointPort {
endpointPorts := []corev1.EndpointPort{{Protocol: corev1.ProtocolTCP,
Port: int32(endpointPort),
Name: endpointPortName,
// createEndpointPortSpec creates the endpoint ports
func createEndpointPortSpec(endpointPort int, endpointPortName string) []corev1.EndpointPort {
return []corev1.EndpointPort{{
Protocol: corev1.ProtocolTCP,
Port: int32(endpointPort),
Name: endpointPortName,
}}
if extraEndpointPorts != nil {
endpointPorts = append(endpointPorts, extraEndpointPorts...)
}
return endpointPorts
}
// CreateOrUpdateMasterServiceIfNeeded will create the specified service if it

11
pkg/controlplane/instance.go
View File

@ -159,17 +159,6 @@ type ExtraConfig struct {
// The range of ports to be assigned to services with type=NodePort or greater
ServiceNodePortRange utilnet.PortRange
// Additional ports to be exposed on the GenericAPIServer service
// extraServicePorts is injectable in the event that more ports
// (other than the default 443/tcp) are exposed on the GenericAPIServer
// and those ports need to be load balanced by the GenericAPIServer
// service because this pkg is linked by out-of-tree projects
// like openshift which want to use the GenericAPIServer but also do
// more stuff.
ExtraServicePorts []apiv1.ServicePort
// Additional ports to be exposed on the GenericAPIServer endpoints
// Port names should align with ports defined in ExtraServicePorts
ExtraEndpointPorts []apiv1.EndpointPort
// If non-zero, the "kubernetes" services uses this port as NodePort.
KubernetesServiceNodePort int