overlay

Documentation

Index

• func CleanupContent(containerDir string) (Err error)
• func CleanupMount(contentDir string) (Err error)
• func GenerateStructure(containerDir, containerID, name string, rootUID, rootGID int) (string, error)
• func Mount(contentDir, source, dest string, rootUID, rootGID int, graphOptions []string) (mount specs.Mount, Err error)
• func MountReadOnly(contentDir, source, dest string, rootUID, rootGID int, graphOptions []string) (mount specs.Mount, Err error)
• func RemoveTemp(contentDir string) error
• func TempDir(containerDir string, rootUID, rootGID int) (string, error)
• func Unmount(contentDir string) error

Functions

func CleanupContent

func CleanupContent(containerDir string) (Err error)

CleanupContent removes all temporary mountpoint and all content from directory

func CleanupMount

func CleanupMount(contentDir string) (Err error)

CleanupMount removes all temporary mountpoint content

func GenerateStructure

func GenerateStructure(containerDir, containerID, name string, rootUID, rootGID int) (string, error)

GenerateStructure generates an overlay directory structure for container content

func Mount

func Mount(contentDir, source, dest string, rootUID, rootGID int, graphOptions []string) (mount specs.Mount, Err error)

Mount creates a subdir of the contentDir based on the source directory from the source system. It then mounts up the source directory on to the generated mount point and returns the mount point to the caller.

func MountReadOnly

func MountReadOnly(contentDir, source, dest string, rootUID, rootGID int, graphOptions []string) (mount specs.Mount, Err error)

MountReadOnly creates a subdir of the contentDir based on the source directory from the source system. It then mounts up the source directory on to the generated mount point and returns the mount point to the caller. Note that no upper layer will be created rendering it a read-only mount

func RemoveTemp

func RemoveTemp(contentDir string) error

RemoveTemp removes temporary mountpoint and all content from its parent directory

func TempDir

func TempDir(containerDir string, rootUID, rootGID int) (string, error)

TempDir generates an overlay Temp directory in the container content

func Unmount

func Unmount(contentDir string) error

Unmount the overlay mountpoint