package nsenter

import "k8s.io/kubernetes/pkg/util/nsenter"

Index ¶

• Constants
• type Executor
• func NewNsenterExecutor(hostRootFsPath string, executor exec.Interface) *Executor
• func (nsExecutor *Executor) Command(cmd string, args ...string) exec.Cmd
• func (nsExecutor *Executor) CommandContext(ctx context.Context, cmd string, args ...string) exec.Cmd
• func (nsExecutor *Executor) LookPath(file string) (string, error)
• type Nsenter
• func NewNsenter(hostRootFsPath string, executor exec.Interface) (*Nsenter, error)
• func (ne *Nsenter) AbsHostPath(command string) string
• func (ne *Nsenter) Exec(cmd string, args []string) exec.Cmd
• func (ne *Nsenter) SupportsSystemd() (string, bool)

Constants ¶

const (
	// DefaultHostRootFsPath is path to host's filesystem mounted into container
	// with kubelet.
	DefaultHostRootFsPath = "/rootfs"
)

Types ¶

type Executor ¶

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

Executor wraps executor interface to be executed via nsenter

func NewNsenterExecutor ¶

func NewNsenterExecutor(hostRootFsPath string, executor exec.Interface) *Executor

NewNsenterExecutor returns new nsenter based executor

func (*Executor) Command ¶

func (nsExecutor *Executor) Command(cmd string, args ...string) exec.Cmd

Command returns a command wrapped with nenter

func (*Executor) CommandContext ¶

func (nsExecutor *Executor) CommandContext(ctx context.Context, cmd string, args ...string) exec.Cmd

CommandContext returns a CommandContext wrapped with nsenter

func (*Executor) LookPath ¶

func (nsExecutor *Executor) LookPath(file string) (string, error)

LookPath returns a LookPath wrapped with nsenter

type Nsenter ¶

type Nsenter struct {
	// a map of commands to their paths on the host filesystem
	Paths map[string]string
}

Nsenter is part of experimental support for running the kubelet in a container.

func NewNsenter ¶

func NewNsenter(hostRootFsPath string, executor exec.Interface) (*Nsenter, error)

NewNsenter constructs a new instance of Nsenter

func (*Nsenter) AbsHostPath ¶

func (ne *Nsenter) AbsHostPath(command string) string

AbsHostPath returns the absolute runnable path for a specified command

func (*Nsenter) Exec ¶

func (ne *Nsenter) Exec(cmd string, args []string) exec.Cmd

Exec executes nsenter commands in hostProcMountNsPath mount namespace

func (*Nsenter) SupportsSystemd ¶

func (ne *Nsenter) SupportsSystemd() (string, bool)

SupportsSystemd checks whether command systemd-run exists

Source Files ¶

exec_unsupported.go nsenter_unsupported.go