/usr/share/gocode/src/gopkg.in/lxc/go-lxc.v2/examples/attach_with_pipes.go is in golang-gopkg-lxc-go-lxc.v2-dev 0.0~git20160405.0.85d46fc-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | // Copyright © 2013, 2014, The Go-LXC Authors. All rights reserved.
// Use of this source code is governed by a LGPLv2.1
// license that can be found in the LICENSE file.
// +build linux,cgo
package main
import (
"flag"
"io"
"log"
"os"
"sync"
"gopkg.in/lxc/go-lxc.v2"
)
var (
lxcpath string
name string
clear bool
x86 bool
regular bool
wg sync.WaitGroup
)
func init() {
flag.StringVar(&lxcpath, "lxcpath", lxc.DefaultConfigPath(), "Use specified container path")
flag.StringVar(&name, "name", "rubik", "Name of the original container")
flag.BoolVar(&clear, "clear", false, "Attach with clear environment")
flag.BoolVar(&x86, "x86", false, "Attach using x86 personality")
flag.BoolVar(®ular, "regular", false, "Attach using a regular user")
flag.Parse()
}
func main() {
c, err := lxc.NewContainer(name, lxcpath)
if err != nil {
log.Fatalf("ERROR: %s\n", err.Error())
}
stdoutReader, stdoutWriter, err := os.Pipe()
if err != nil {
log.Fatalf("ERROR: %s\n", err.Error())
}
stderrReader, stderrWriter, err := os.Pipe()
if err != nil {
log.Fatalf("ERROR: %s\n", err.Error())
}
wg.Add(1)
go func() {
defer wg.Done()
_, err = io.Copy(os.Stdout, stdoutReader)
if err != nil {
log.Fatalf("ERROR: %s\n", err.Error())
}
}()
wg.Add(1)
go func() {
defer wg.Done()
_, err = io.Copy(os.Stderr, stderrReader)
if err != nil {
log.Fatalf("ERROR: %s\n", err.Error())
}
}()
options := lxc.DefaultAttachOptions
options.StdinFd = os.Stdin.Fd()
options.StdoutFd = stdoutWriter.Fd()
options.StderrFd = stderrWriter.Fd()
options.ClearEnv = false
if clear {
options.ClearEnv = true
}
if x86 {
options.Arch = lxc.X86
}
if regular {
options.UID = 1000
options.GID = 1000
}
log.Printf("AttachShell\n")
if err := c.AttachShell(options); err != nil {
log.Fatalf("ERROR: %s\n", err.Error())
}
log.Printf("RunCommand\n")
_, err = c.RunCommand([]string{"uname", "-a"}, options)
if err != nil {
log.Fatalf("ERROR: %s\n", err.Error())
}
if err = stdoutWriter.Close(); err != nil {
log.Fatalf("ERROR: %s\n", err.Error())
}
if err = stderrWriter.Close(); err != nil {
log.Fatalf("ERROR: %s\n", err.Error())
}
wg.Wait()
}
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