cm

Documentation

Index

• Constants
• type ContainerManager
  • func NewContainerManager(mountUtil mount.Interface, cadvisorInterface cadvisor.Interface, ...) (ContainerManager, error)
  • func NewStubContainerManager() ContainerManager
• type KernelTunableBehavior
• type NodeConfig
• type Status

Constants

const (
	// The percent of the machine memory capacity. The value is used to calculate
	// docker memory resource container's hardlimit to workaround docker memory
	// leakage issue. Please see kubernetes/issues/9881 for more detail.
	DockerMemoryLimitThresholdPercent = 70
	// The minimum memory limit allocated to docker container: 150Mi
	MinDockerMemoryLimit = 150 * 1024 * 1024
)

Types

type ContainerManager

type ContainerManager interface {
	// Runs the container manager's housekeeping.
	// - Ensures that the Docker daemon is in a container.
	// - Creates the system container where all non-containerized processes run.
	Start() error

	// Returns resources allocated to system cgroups in the machine.
	// These cgroups include the system and Kubernetes services.
	SystemCgroupsLimit() api.ResourceList

	// Returns a NodeConfig that is being used by the container manager.
	GetNodeConfig() NodeConfig

	// Returns internal Status.
	Status() Status
}

Manages the containers running on a machine.

func NewContainerManager

func NewContainerManager(mountUtil mount.Interface, cadvisorInterface cadvisor.Interface, nodeConfig NodeConfig) (ContainerManager, error)

TODO(vmarmol): Add limits to the system containers. Takes the absolute name of the specified containers. Empty container name disables use of the specified container.

func NewStubContainerManager

func NewStubContainerManager() ContainerManager

type KernelTunableBehavior

type KernelTunableBehavior string

TODO: plumb this up as a flag to Kubelet in a future PR

const (
	KernelTunableWarn   KernelTunableBehavior = "warn"
	KernelTunableError  KernelTunableBehavior = "error"
	KernelTunableModify KernelTunableBehavior = "modify"
)

type NodeConfig

type NodeConfig struct {
	RuntimeCgroupsName string
	SystemCgroupsName  string
	KubeletCgroupsName string
	ContainerRuntime   string
}

type Status

type Status struct {
	// Any soft requirements that were unsatisfied.
	SoftRequirements error
}