kubernetes

package
v0.0.0-...-d3d374b Latest Latest
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 Go to latest Published: Apr 15, 2018 License: Apache-2.0 Imports: 157 Imported by: 0

Documentation

Overview

Package kubernetes provides objects for starting the Kubernetes master and node code.

Index

Constants

View Source 
const (
	KubeAPIPrefix      = "/api"
	KubeAPIGroupPrefix = "/apis"
)

Variables

This section is empty.

Functions

func BuildDefaultAPIServer 

func BuildDefaultAPIServer(options configapi.MasterConfig) (*apiserveroptions.APIServer, genericapiserver.StorageFactory, error)

BuildDefaultAPIServer constructs the appropriate APIServer and StorageFactory for the kubernetes server. It returns an error if no KubernetesMasterConfig was defined.

func SetFakeCadvisorInterfaceForIntegrationTest 

func SetFakeCadvisorInterfaceForIntegrationTest()

SetFakeCadvisorInterfaceForIntegrationTest sets a fake cadvisor implementation to allow the node to run in integration tests

func SetFakeContainerManagerInterfaceForIntegrationTest 

func SetFakeContainerManagerInterfaceForIntegrationTest()

SetFakeContainerManagerInterfaceForIntegrationTest sets a fake container manager implementation to allow the node to run in integration tests

Types

type MasterConfig 

type MasterConfig struct {
	Options    configapi.KubernetesMasterConfig
	KubeClient *kclient.Client

	Master            *master.Config
	ControllerManager *cmapp.CMServer
	SchedulerServer   *scheduleroptions.SchedulerServer
	CloudProvider     cloudprovider.Interface

	Informers shared.InformerFactory
}

MasterConfig defines the required values to start a Kubernetes master

func BuildKubernetesMasterConfig 

func BuildKubernetesMasterConfig(options configapi.MasterConfig, requestContextMapper kapi.RequestContextMapper, kubeClient *kclient.Client, informers shared.InformerFactory, admissionControl admission.Interface, originAuthenticator authenticator.Request) (*MasterConfig, error)

func (*MasterConfig) InstallAPI 

func (c *MasterConfig) InstallAPI(container *restful.Container) ([]string, error)

InstallAPI starts a Kubernetes master and registers the supported REST APIs into the provided mux, then returns an array of strings indicating what endpoints were started (these are format strings that will expect to be sent a single string value).

func (*MasterConfig) RunDaemonSetsController 

func (c *MasterConfig) RunDaemonSetsController(client *client.Client)

func (*MasterConfig) RunDeploymentController 

func (c *MasterConfig) RunDeploymentController(client *client.Client)

func (*MasterConfig) RunDisruptionBudgetController 

func (c *MasterConfig) RunDisruptionBudgetController(client *client.Client)

RunDisruptionBudgetController starts the Kubernetes disruption budget controller

func (*MasterConfig) RunEndpointController 

func (c *MasterConfig) RunEndpointController(client *client.Client)

RunEndpointController starts the Kubernetes replication controller sync loop

func (*MasterConfig) RunGCController 

func (c *MasterConfig) RunGCController(client *client.Client)

RunGCController handles deletion of terminated pods.

func (*MasterConfig) RunGarbageCollectorController 

func (c *MasterConfig) RunGarbageCollectorController(client *osclient.Client, config *restclient.Config)

RunGarbageCollectorController starts generic garbage collection for the cluster.

func (*MasterConfig) RunHPAController 

func (c *MasterConfig) RunHPAController(oc *osclient.Client, kc *client.Client, heapsterNamespace string)

RunHPAController starts the Kubernetes hpa controller sync loop

func (*MasterConfig) RunJobController 

func (c *MasterConfig) RunJobController(client *client.Client)

RunJobController starts the Kubernetes job controller sync loop

func (*MasterConfig) RunNamespaceController 

func (c *MasterConfig) RunNamespaceController(kubeClient internalclientset.Interface, clientPool dynamic.ClientPool)

RunNamespaceController starts the Kubernetes Namespace Manager

func (*MasterConfig) RunNodeController 

func (c *MasterConfig) RunNodeController()

RunNodeController starts the node controller TODO: handle node CIDR and route allocation

func (*MasterConfig) RunPersistentVolumeAttachDetachController 

func (c *MasterConfig) RunPersistentVolumeAttachDetachController(client *client.Client)

func (*MasterConfig) RunPersistentVolumeController 

func (c *MasterConfig) RunPersistentVolumeController(client *client.Client, namespace, recyclerImageName, recyclerServiceAccountName string)

func (*MasterConfig) RunPetSetController 

func (c *MasterConfig) RunPetSetController(client *client.Client)

RunPetSetController starts the PetSet controller

func (*MasterConfig) RunReplicaSetController 

func (c *MasterConfig) RunReplicaSetController(client *client.Client)

func (*MasterConfig) RunReplicationController 

func (c *MasterConfig) RunReplicationController(client *client.Client)

RunReplicationController starts the Kubernetes replication controller sync loop

func (*MasterConfig) RunScheduledJobController 

func (c *MasterConfig) RunScheduledJobController(config *restclient.Config)

RunScheduledJobController starts the Kubernetes scheduled job controller sync loop

func (*MasterConfig) RunScheduler 

func (c *MasterConfig) RunScheduler()

RunScheduler starts the Kubernetes scheduler

func (*MasterConfig) RunServiceLoadBalancerController 

func (c *MasterConfig) RunServiceLoadBalancerController(client *client.Client)

RunServiceLoadBalancerController starts the service loadbalancer controller if the cloud provider is configured.

type NodeAuthorizerAttributesGetter 

type NodeAuthorizerAttributesGetter struct {
	// contains filtered or unexported fields
}

func (NodeAuthorizerAttributesGetter) GetRequestAttributes 

func (n NodeAuthorizerAttributesGetter) GetRequestAttributes(u user.Info, r *http.Request) kauthorizer.Attributes

GetRequestAttributes populates authorizer attributes for the requests to the kubelet API. Default attributes are {apiVersion=v1,verb=proxy,resource=nodes,resourceName=<node name>} More specific verb/resource is set for the following request patterns: 

/stats/*   => verb=<api verb from request>, resource=nodes/stats
/metrics/* => verb=<api verb from request>, resource=nodes/metrics
/logs/*    => verb=<api verb from request>, resource=nodes/log

type NodeConfig 

type NodeConfig struct {
	// BindAddress is the address to bind to
	BindAddress string
	// VolumeDir is the directory that volumes will be stored under
	VolumeDir string
	// AllowDisabledDocker if true, will make the Kubelet ignore errors from Docker
	AllowDisabledDocker bool
	// Containerized is true if we are expected to be running inside of a container
	Containerized bool

	// Client to connect to the master.
	Client *client.Client
	// DockerClient is a client to connect to Docker
	DockerClient dockertools.DockerInterface
	// KubeletServer contains the KubeletServer configuration
	KubeletServer *kubeletoptions.KubeletServer
	// KubeletDeps are the injected code dependencies for the kubelet, fully initialized
	KubeletDeps *kubelet.KubeletDeps
	// ProxyConfig is the configuration for the kube-proxy, fully initialized
	ProxyConfig *proxyoptions.ProxyServerConfig
	// IPTablesSyncPeriod is how often iptable rules are refreshed
	IPTablesSyncPeriod string
	// EnableUnidling indicates whether or not the unidling hybrid proxy should be used
	EnableUnidling bool

	// ServiceStore is reused between proxy and DNS
	ServiceStore cache.Store
	// EndpointsStore is reused between proxy and DNS
	EndpointsStore cache.Store
	// ServicesReady is closed when the service and endpoint stores are ready to be used
	ServicesReady chan struct{}

	// DNSConfig controls the DNS configuration.
	DNSServer *dns.Server

	// SDNPlugin is an optional SDN plugin
	SDNPlugin *sdnplugin.OsdnNode
	// SDNProxy is an optional service endpoints filterer
	SDNProxy *sdnplugin.OsdnProxy
}

NodeConfig represents the required parameters to start the OpenShift node through Kubernetes. All fields are required.

func BuildKubernetesNodeConfig 

func BuildKubernetesNodeConfig(options configapi.NodeConfig, enableProxy, enableDNS bool) (*NodeConfig, error)

func (*NodeConfig) EnsureDocker 

func (c *NodeConfig) EnsureDocker(docker *dockerutil.Helper)

EnsureDocker attempts to connect to the Docker daemon defined by the helper, and if it is unable to it will print a warning.

func (*NodeConfig) EnsureKubeletAccess 

func (c *NodeConfig) EnsureKubeletAccess()

EnsureKubeletAccess performs a number of test operations that the Kubelet requires to properly function. All errors here are fatal.

func (*NodeConfig) EnsureLocalQuota 

func (c *NodeConfig) EnsureLocalQuota(nodeConfig configapi.NodeConfig)

EnsureLocalQuota checks if the node config specifies a local storage perFSGroup quota, and if so will test that the volumeDirectory is on a filesystem suitable for quota enforcement. If checks pass the k8s emptyDir volume plugin will be replaced with a wrapper version which adds quota functionality.

func (*NodeConfig) EnsureVolumeDir 

func (c *NodeConfig) EnsureVolumeDir()

EnsureVolumeDir attempts to convert the provided volume directory argument to an absolute path and create the directory if it does not exist. Will exit if an error is encountered.

func (*NodeConfig) HandleDockerError 

func (c *NodeConfig) HandleDockerError(message string)

HandleDockerError handles an an error from the docker daemon

func (*NodeConfig) RunDNS 

func (c *NodeConfig) RunDNS()

RunDNS starts the DNS server as soon as services are loaded.

func (*NodeConfig) RunKubelet 

func (c *NodeConfig) RunKubelet()

RunKubelet starts the Kubelet.

func (*NodeConfig) RunPlugin 

func (c *NodeConfig) RunPlugin()

RunPlugin starts the local SDN plugin, if enabled in configuration.

func (*NodeConfig) RunProxy 

func (c *NodeConfig) RunProxy()

RunProxy starts the proxy

func (*NodeConfig) RunServiceStores 

func (c *NodeConfig) RunServiceStores(enableProxy, enableDNS bool)

RunServiceStores retrieves service info from the master, and closes the ServicesReady channel when done.

type ProxyConfig 

type ProxyConfig struct {
	ClientConfig *restclient.Config
}

func (*ProxyConfig) InstallAPI 

func (c *ProxyConfig) InstallAPI(container *restful.Container) ([]string, error)

Source Files

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