server

Documentation

Overview

Package server contains functions related to serving Kubelet's external interface.

Index

• func ListenAndServeKubeletReadOnlyServer(host HostInterface, resourceAnalyzer stats.ResourceAnalyzer, address net.IP, ...)
• func ListenAndServeKubeletServer(host HostInterface, resourceAnalyzer stats.ResourceAnalyzer, address net.IP, ...)
• func ServePortForward(w http.ResponseWriter, req *http.Request, portForwarder PortForwarder, ...)
• type AuthInterface
  • func NewKubeletAuth(authenticator authenticator.Request, ...) AuthInterface
• type HostInterface
• type KubeletAuth
• type PortForwarder
• type Server
  • func NewServer(host HostInterface, resourceAnalyzer stats.ResourceAnalyzer, ...) Server
  • func (s *Server) InstallAuthFilter()
  • func (s *Server) InstallDebuggingHandlers()
  • func (s *Server) InstallDefaultHandlers()
  • func (s *Server) ServeHTTP(w http.ResponseWriter, req *http.Request)
• type TLSOptions

Functions

func ListenAndServeKubeletReadOnlyServer

func ListenAndServeKubeletReadOnlyServer(host HostInterface, resourceAnalyzer stats.ResourceAnalyzer, address net.IP, port uint, runtime kubecontainer.Runtime)

ListenAndServeKubeletReadOnlyServer initializes a server to respond to HTTP network requests on the Kubelet.

func ListenAndServeKubeletServer

func ListenAndServeKubeletServer(
	host HostInterface,
	resourceAnalyzer stats.ResourceAnalyzer,
	address net.IP,
	port uint,
	tlsOptions *TLSOptions,
	auth AuthInterface,
	enableDebuggingHandlers bool,
	runtime kubecontainer.Runtime)

ListenAndServeKubeletServer initializes a server to respond to HTTP network requests on the Kubelet.

func ServePortForward

func ServePortForward(w http.ResponseWriter, req *http.Request, portForwarder PortForwarder, podName string, uid types.UID, idleTimeout time.Duration, streamCreationTimeout time.Duration)

ServePortForward handles a port forwarding request. A single request is kept alive as long as the client is still alive and the connection has not been timed out due to idleness. This function handles multiple forwarded connections; i.e., multiple `curl http://localhost:8888/` requests will be handled by a single invocation of ServePortForward.

Types

type AuthInterface

type AuthInterface interface {
	authenticator.Request
	authorizer.RequestAttributesGetter
	authorizer.Authorizer
}

AuthInterface contains all methods required by the auth filters

func NewKubeletAuth

func NewKubeletAuth(authenticator authenticator.Request, authorizerAttributeGetter authorizer.RequestAttributesGetter, authorizer authorizer.Authorizer) AuthInterface

NewKubeletAuth returns a kubelet.AuthInterface composed of the given authenticator, attribute getter, and authorizer

type HostInterface

type HostInterface interface {
	GetContainerInfo(podFullName string, uid types.UID, containerName string, req *cadvisorapi.ContainerInfoRequest) (*cadvisorapi.ContainerInfo, error)
	GetContainerInfoV2(name string, options cadvisorapiv2.RequestOptions) (map[string]cadvisorapiv2.ContainerInfo, error)
	GetRawContainerInfo(containerName string, req *cadvisorapi.ContainerInfoRequest, subcontainers bool) (map[string]*cadvisorapi.ContainerInfo, error)
	GetCachedMachineInfo() (*cadvisorapi.MachineInfo, error)
	GetPods() []*api.Pod
	GetRunningPods() ([]*api.Pod, error)
	GetPodByName(namespace, name string) (*api.Pod, bool)
	RunInContainer(name string, uid types.UID, container string, cmd []string) ([]byte, error)
	ExecInContainer(name string, uid types.UID, container string, cmd []string, in io.Reader, out, err io.WriteCloser, tty bool, resize <-chan term.Size) error
	AttachContainer(name string, uid types.UID, container string, in io.Reader, out, err io.WriteCloser, tty bool, resize <-chan term.Size) error
	GetKubeletContainerLogs(podFullName, containerName string, logOptions *api.PodLogOptions, stdout, stderr io.Writer) error
	ServeLogs(w http.ResponseWriter, req *http.Request)
	PortForward(name string, uid types.UID, port uint16, stream io.ReadWriteCloser) error
	StreamingConnectionIdleTimeout() time.Duration
	ResyncInterval() time.Duration
	GetHostname() string
	GetNode() (*api.Node, error)
	GetNodeConfig() cm.NodeConfig
	LatestLoopEntryTime() time.Time
	ImagesFsInfo() (cadvisorapiv2.FsInfo, error)
	RootFsInfo() (cadvisorapiv2.FsInfo, error)
	ListVolumesForPod(podUID types.UID) (map[string]volume.Volume, bool)
	PLEGHealthCheck() (bool, error)
}

HostInterface contains all the kubelet methods required by the server. For testablitiy.

type KubeletAuth

type KubeletAuth struct {
	// authenticator identifies the user for requests to the Kubelet API
	authenticator.Request
	// authorizerAttributeGetter builds authorization.Attributes for a request to the Kubelet API
	authorizer.RequestAttributesGetter
	// authorizer determines whether a given authorization.Attributes is allowed
	authorizer.Authorizer
}

KubeletAuth implements AuthInterface

type PortForwarder

type PortForwarder interface {
	// PortForwarder copies data between a data stream and a port in a pod.
	PortForward(name string, uid types.UID, port uint16, stream io.ReadWriteCloser) error
}

PortForwarder knows how to forward content from a data stream to/from a port in a pod.

type Server

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

Server is a http.Handler which exposes kubelet functionality over HTTP.

func NewServer

func NewServer(
	host HostInterface,
	resourceAnalyzer stats.ResourceAnalyzer,
	auth AuthInterface,
	enableDebuggingHandlers bool,
	runtime kubecontainer.Runtime) Server

NewServer initializes and configures a kubelet.Server object to handle HTTP requests.

func (*Server) InstallAuthFilter

func (s *Server) InstallAuthFilter()

InstallAuthFilter installs authentication filters with the restful Container.

func (*Server) InstallDebuggingHandlers

func (s *Server) InstallDebuggingHandlers()

InstallDeguggingHandlers registers the HTTP request patterns that serve logs or run commands/containers

func (*Server) InstallDefaultHandlers

func (s *Server) InstallDefaultHandlers()

InstallDefaultHandlers registers the default set of supported HTTP request patterns with the restful Container.

func (*Server) ServeHTTP

func (s *Server) ServeHTTP(w http.ResponseWriter, req *http.Request)

ServeHTTP responds to HTTP requests on the Kubelet.

type TLSOptions

type TLSOptions struct {
	Config   *tls.Config
	CertFile string
	KeyFile  string
}