common

Documentation

Overview

Package common defines values shared by different parts of rkt (e.g. stage0 and stage1)

Index

• Constants
• func AppImageManifestPath(root string, appName types.ACName) string
• func AppInfoPath(root string, appName types.ACName) string
• func AppPath(root string, appName types.ACName) string
• func AppRootfsPath(root string, appName types.ACName) string
• func AppTreeStoreIDPath(root string, appName types.ACName) string
• func AppsInfoPath(root string) string
• func AppsPath(root string) string
• func FSSupportsOverlay(path string) bool
• func GetRktLockFD() (int, error)
• func ImageManifestPath(root string, appName types.ACName) string
• func LookupGid(groupName string) (gid int, err error)
• func LookupPath(bin string, paths string) (string, error)
• func MetadataServicePublicURL(ip net.IP, token string) string
• func PodManifestPath(root string) string
• func RelAppPath(appName types.ACName) string
• func RelAppRootfsPath(appName types.ACName) string
• func SharedVolumesPath(root string) string
• func SliceToPath(unit string) (string, error)
• func Stage1ImagePath(root string) string
• func Stage1ManifestPath(root string) string
• func Stage1RootfsPath(root string) string
• func SupportsOverlay() bool
• func SupportsUserNS() bool
• func SystemdVersion(systemdBinaryPath string) (int, error)
• type NetList
  • func (l *NetList) All() bool
  • func (l *NetList) Contained() bool
  • func (l *NetList) Host() bool
  • func (l *NetList) None() bool
  • func (l *NetList) Set(value string) error
  • func (l *NetList) Specific(net string) bool
  • func (l *NetList) SpecificArgs(net string) string
  • func (l *NetList) String() string
  • func (l *NetList) Strings() []string
  • func (l *NetList) StringsOnlyNames() (list []string)
  • func (l *NetList) Type() string

Constants

const (
	AppsInfoDir = "/appsinfo"

	EnvLockFd                    = "RKT_LOCK_FD"
	EnvSELinuxContext            = "RKT_SELINUX_CONTEXT"
	EnvSELinuxMountContext       = "RKT_SELINUX_MOUNT_CONTEXT"
	Stage1TreeStoreIDFilename    = "stage1TreeStoreID"
	AppTreeStoreIDFilename       = "treeStoreID"
	OverlayPreparedFilename      = "overlay-prepared"
	PrivateUsersPreparedFilename = "private-users-prepared"

	PrepareLock = "prepareLock"

	MetadataServicePort    = 18112
	MetadataServiceRegSock = "/run/rkt/metadata-svc.sock"

	APIServiceListenAddr = "localhost:15441"

	DefaultLocalConfigDir  = "/etc/rkt"
	DefaultSystemConfigDir = "/usr/lib/rkt"
)

const (
	FsMagicAUFS = int64(0x61756673) // https://goo.gl/CBwx43
	FsMagicZFS  = int64(0x2FC12FC1) // https://goo.gl/xTvzO5
)

const (
	RktGroup = "rkt"
)

Functions

func AppImageManifestPath

func AppImageManifestPath(root string, appName types.ACName) string

AppImageManifestPath returns the path to the app's ImageManifest file

func AppInfoPath

func AppInfoPath(root string, appName types.ACName) string

AppInfoPath returns the path to the app's appsinfo directory of a pod.

func AppPath

func AppPath(root string, appName types.ACName) string

AppPath returns the path to an app's rootfs.

func AppRootfsPath

func AppRootfsPath(root string, appName types.ACName) string

AppRootfsPath returns the path to an app's rootfs.

func AppTreeStoreIDPath

func AppTreeStoreIDPath(root string, appName types.ACName) string

AppTreeStoreIDPath returns the path to the app's treeStoreID file of a pod.

func AppsInfoPath

func AppsInfoPath(root string) string

AppsInfoPath returns the path to the appsinfo directory of a pod.

func AppsPath

func AppsPath(root string) string

AppsPath returns the path where the apps within a pod live.

func FSSupportsOverlay

func FSSupportsOverlay(path string) bool

FSSupportsOverlay checks whether the filesystem under which a specified path resides is compatible with OverlayFS

func GetRktLockFD

func GetRktLockFD() (int, error)

func ImageManifestPath

func ImageManifestPath(root string, appName types.ACName) string

ImageManifestPath returns the path to the app's manifest file of a pod.

func LookupGid

func LookupGid(groupName string) (gid int, err error)

LookupGid reads the group file and returns the gid of the group specified by groupName.

func LookupPath

func LookupPath(bin string, paths string) (string, error)

LookupPath search for bin in paths. If found, it returns its absolute path, if not, an error

func MetadataServicePublicURL

func MetadataServicePublicURL(ip net.IP, token string) string

MetadataServicePublicURL returns the public URL used to host the metadata service

func PodManifestPath

func PodManifestPath(root string) string

PodManifestPath returns the path in root to the Pod Manifest

func RelAppPath

func RelAppPath(appName types.ACName) string

RelAppPath returns the path of an app relative to the stage1 chroot.

func RelAppRootfsPath

func RelAppRootfsPath(appName types.ACName) string

RelAppRootfsPath returns the path of an app's rootfs relative to the stage1 chroot.

func SharedVolumesPath

func SharedVolumesPath(root string) string

SharedVolumesPath returns the path to the shared (empty) volumes of a pod.

func SliceToPath

func SliceToPath(unit string) (string, error)

SliceToPath explodes a slice name to its corresponding path in the cgroup hierarchy. For example, a slice named "foo-bar-baz.slice" corresponds to the path "foo.slice/foo-bar.slice/foo-bar-baz.slice". See systemd.slice(5)

func Stage1ImagePath

func Stage1ImagePath(root string) string

Stage1ImagePath returns the path where the stage1 app image (unpacked ACI) is rooted, (i.e. where its contents are extracted during stage0).

func Stage1ManifestPath

func Stage1ManifestPath(root string) string

Stage1ManifestPath returns the path to the stage1's manifest file inside the expanded ACI.

func Stage1RootfsPath

func Stage1RootfsPath(root string) string

Stage1RootfsPath returns the path to the stage1 rootfs

func SupportsOverlay

func SupportsOverlay() bool

SupportsOverlay returns whether the system supports overlay filesystem

func SupportsUserNS

func SupportsUserNS() bool

SupportsUserNS returns whether the kernel has CONFIG_USER_NS set

func SystemdVersion

func SystemdVersion(systemdBinaryPath string) (int, error)

SystemdVersion parses and returns the version of a given systemd binary

Types

type NetList

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

NetList implements the flag.Value interface to allow specification of --net with and without values Example: --net="all,net1:k1=v1;k2=v2,net2:l1=w1"

func (*NetList) All

func (l *NetList) All() bool

func (*NetList) Contained

func (l *NetList) Contained() bool

Check if the container needs to be put in a separate network namespace

func (*NetList) Host

func (l *NetList) Host() bool

Check if host networking has been requested

func (*NetList) None

func (l *NetList) None() bool

Check if 'none' (loopback only) networking has been requested

func (*NetList) Set

func (l *NetList) Set(value string) error

func (*NetList) Specific

func (l *NetList) Specific(net string) bool

func (*NetList) SpecificArgs

func (l *NetList) SpecificArgs(net string) string

func (*NetList) String

func (l *NetList) String() string

func (*NetList) Strings

func (l *NetList) Strings() []string

func (*NetList) StringsOnlyNames

func (l *NetList) StringsOnlyNames() (list []string)

func (*NetList) Type

func (l *NetList) Type() string