host

Documentation

Overview

Package host contains a utility to run commands on the Docker host by using an image in privileged mode.

Create an HostHelper with NewHostHelper

Index

• Constants
• type HostHelper
  • func NewHostHelper(client *docker.Client, image, volumesDir, configDir, dataDir string) *HostHelper
  • func (h *HostHelper) CanUseNsenterMounter() (bool, error)
  • func (h *HostHelper) CopyFromHost(sourceDir, destDir string) error
  • func (h *HostHelper) CopyMasterConfigToHost(sourceFile, destDir string) error
  • func (h *HostHelper) EnsureHostDirectories() error
  • func (h *HostHelper) EnsureVolumeShare() error
  • func (h *HostHelper) Hostname() (string, error)

Constants

const (
	DefaultVolumesDir = "/var/lib/origin/openshift.local.volumes"
	DefaultConfigDir  = "/var/lib/origin/openshift.local.config"
)

Types

type HostHelper

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

HostHelper contains methods to help check settings on a Docker host machine using a privileged container

func NewHostHelper

func NewHostHelper(client *docker.Client, image, volumesDir, configDir, dataDir string) *HostHelper

NewHostHelper creates a new HostHelper

func (*HostHelper) CanUseNsenterMounter

func (h *HostHelper) CanUseNsenterMounter() (bool, error)

CanUseNsenterMounter returns true if the Docker host machine can execute findmnt through nsenter

func (*HostHelper) CopyFromHost

func (h *HostHelper) CopyFromHost(sourceDir, destDir string) error

CopyFromHost copies a set of files from the Docker host to the local file system

func (*HostHelper) CopyMasterConfigToHost

func (h *HostHelper) CopyMasterConfigToHost(sourceFile, destDir string) error

CopyMasterConfigToHost copies a local file to the Docker host

func (*HostHelper) EnsureHostDirectories

func (h *HostHelper) EnsureHostDirectories() error

func (*HostHelper) EnsureVolumeShare

func (h *HostHelper) EnsureVolumeShare() error

EnsureVolumeShare ensures that the host Docker machine has a shared directory that can be used for OpenShift volumes

func (*HostHelper) Hostname

func (h *HostHelper) Hostname() (string, error)

Hostname retrieves the FQDN of the Docker host machine