controller

package
v0.14.1 Latest Latest
Warning

This package is not in the latest version of its module.

Go to latest
Published: Apr 1, 2015 License: Apache-2.0 Imports: 16 Imported by: 0

Documentation

Overview

Package controller contains code for syncing cloud instances with minion registry

Index

Constants

This section is empty.

Variables

View Source
var (
	ErrRegistration   = errors.New("unable to register all nodes.")
	ErrQueryIPAddress = errors.New("unable to query IP address.")
	ErrCloudInstance  = errors.New("cloud provider doesn't support instances.")
)

Functions

This section is empty.

Types

type NodeController added in v0.9.0

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

func NewNodeController added in v0.9.0

func NewNodeController(
	cloud cloudprovider.Interface,
	matchRE string,
	nodes []string,
	staticResources *api.NodeResources,
	kubeClient client.Interface,
	kubeletClient client.KubeletClient,
	recorder record.EventRecorder,
	registerRetryCount int,
	podEvictionTimeout time.Duration) *NodeController

NewNodeController returns a new node controller to sync instances from cloudprovider.

func (*NodeController) DoCheck added in v0.10.0

func (nc *NodeController) DoCheck(node *api.Node) []api.NodeCondition

DoCheck performs various condition checks for given node.

func (*NodeController) GetCloudNodesWithSpec added in v0.13.0

func (nc *NodeController) GetCloudNodesWithSpec() (*api.NodeList, error)

GetCloudNodesWithSpec constructs and returns api.NodeList from cloudprovider. If error occurs, an empty NodeList will be returned with a non-nil error info. The method only constructs spec fields for nodes.

func (*NodeController) GetStaticNodesWithSpec added in v0.13.0

func (nc *NodeController) GetStaticNodesWithSpec() (*api.NodeList, error)

GetStaticNodesWithSpec constructs and returns api.NodeList for static nodes. If error occurs, an empty NodeList will be returned with a non-nil error info. The method only constructs spec fields for nodes.

func (*NodeController) MonitorNodeStatus added in v0.14.0

func (nc *NodeController) MonitorNodeStatus() error

MonitorNodeStatus verifies node status are constantly updated by kubelet, and if not, post "NodeReady==ConditionUnknown". It also evicts all pods if node is not ready or not reachable for a long period of time.

func (*NodeController) PopulateAddresses added in v0.13.0

func (nc *NodeController) PopulateAddresses(nodes *api.NodeList) (*api.NodeList, error)

PopulateAddresses queries Address for given list of nodes.

func (*NodeController) PopulateNodesStatus added in v0.14.0

func (nc *NodeController) PopulateNodesStatus(nodes *api.NodeList) (*api.NodeList, error)

PopulateNodesStatus populates node status for given list of nodes.

func (*NodeController) RegisterNodes added in v0.10.0

func (nc *NodeController) RegisterNodes(nodes *api.NodeList, retryCount int, retryInterval time.Duration) error

RegisterNodes registers the given list of nodes, it keeps retrying for `retryCount` times.

func (*NodeController) Run added in v0.9.0

func (nc *NodeController) Run(period time.Duration, syncNodeList, syncNodeStatus bool)

Run creates initial node list and start syncing instances from cloudprovider, if any. It also starts syncing or monitoring cluster node status.

  1. RegisterNodes() is called only once to register all initial nodes (from cloudprovider or from command line flag). To make cluster bootstrap faster, node controller populates node addresses.
  2. SyncCloudNodes() is called periodically (if enabled) to sync instances from cloudprovider. Node created here will only have specs.
  3. Depending on how k8s is configured, there are two ways of syncing the node status: 3.1 SyncProbedNodeStatus() is called periodically to trigger master to probe kubelet, and incorporate the resulting node status. 3.2 MonitorNodeStatus() is called periodically to incorporate the results of node status pushed from kubelet to master.

func (*NodeController) SyncCloudNodes added in v0.14.0

func (nc *NodeController) SyncCloudNodes() error

SyncCloudNodes synchronizes the list of instances from cloudprovider to master server.

func (*NodeController) SyncProbedNodeStatus added in v0.14.0

func (nc *NodeController) SyncProbedNodeStatus() error

SyncProbedNodeStatus synchronizes cluster nodes status to master server.

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL