utils

Documentation

Index

• Variables
• func CopyDetachable(dst io.Writer, src io.Reader, keys []byte) (written int64, err error)
• func ExecCmd(name string, args ...string) (string, error)
• func ExecCmdWithStdStreams(stdin io.Reader, stdout, stderr io.Writer, env []string, name string, ...) error
• func RunUnderSystemdScope(pid int, slice string, unitName string) error
• func Tar(source string) (io.ReadCloser, error)
• func TarToFilesystem(source string, tarball *os.File) error
• func UntarToFileSystem(dest string, tarball *os.File, options *archive.TarOptions) error

Variables

var ErrDetach = errors.New("detached from container")

ErrDetach is an error indicating that the user manually detached from the container.

Functions

func CopyDetachable

func CopyDetachable(dst io.Writer, src io.Reader, keys []byte) (written int64, err error)

CopyDetachable is similar to io.Copy but support a detach key sequence to break out.

func ExecCmd

func ExecCmd(name string, args ...string) (string, error)

ExecCmd executes a command with args and returns its output as a string along with an error, if any

func ExecCmdWithStdStreams

func ExecCmdWithStdStreams(stdin io.Reader, stdout, stderr io.Writer, env []string, name string, args ...string) error

ExecCmdWithStdStreams execute a command with the specified standard streams.

func RunUnderSystemdScope

func RunUnderSystemdScope(pid int, slice string, unitName string) error

RunUnderSystemdScope adds the specified pid to a systemd scope

func Tar

func Tar(source string) (io.ReadCloser, error)

Tar creates a tarball from source and returns a readcloser of it

func TarToFilesystem

func TarToFilesystem(source string, tarball *os.File) error

TarToFilesystem creates a tarball from source and writes to an os.file provided

func UntarToFileSystem

func UntarToFileSystem(dest string, tarball *os.File, options *archive.TarOptions) error

UntarToFileSystem untars an os.file of a tarball to a destination in the filesystem