FilesExpand file tree

25.0

/

docker_cli_attach_test.go

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

199 lines (165 loc) · 4.73 KB

25.0

/

docker_cli_attach_test.go

Copy path

Top

File metadata and controls

• Code
• Blame

199 lines (165 loc) · 4.73 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

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

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

package main

import (

"bufio"

"context"

"fmt"

"io"

"os/exec"

"runtime"

"strings"

"sync"

"testing"

"time"

"github.com/docker/docker/integration-cli/cli"

"gotest.tools/v3/assert"

"gotest.tools/v3/icmd"

)

const attachWait = 5 * time.Second

type DockerCLIAttachSuite struct {

ds *DockerSuite

}

func (s *DockerCLIAttachSuite) TearDownTest(ctx context.Context, c *testing.T) {

s.ds.TearDownTest(ctx, c)

}

func (s *DockerCLIAttachSuite) OnTimeout(c *testing.T) {

s.ds.OnTimeout(c)

}

func (s *DockerCLIAttachSuite) TestAttachMultipleAndRestart(c *testing.T) {

endGroup := &sync.WaitGroup{}

startGroup := &sync.WaitGroup{}

endGroup.Add(3)

startGroup.Add(3)

cli.DockerCmd(c, "run", "--name", "attacher", "-d", "busybox", "/bin/sh", "-c", "while true; do sleep 1; echo hello; done")

cli.WaitRun(c, "attacher")

startDone := make(chan struct{})

endDone := make(chan struct{})

go func() {

endGroup.Wait()

close(endDone)

}()

go func() {

startGroup.Wait()

close(startDone)

}()

for i := 0; i < 3; i++ {

go func() {

cmd := exec.Command(dockerBinary, "attach", "attacher")

defer func() {

cmd.Wait()

endGroup.Done()

}()

out, err := cmd.StdoutPipe()

if err != nil {

c.Error(err)

}

defer out.Close()

if err := cmd.Start(); err != nil {

c.Error(err)

}

buf := make([]byte, 1024)

if _, err := out.Read(buf); err != nil && err != io.EOF {

c.Error(err)

}

startGroup.Done()

if !strings.Contains(string(buf), "hello") {

c.Errorf("unexpected output %s expected hello\n", string(buf))

}

}()

}

select {

case <-startDone:

case <-time.After(attachWait):

c.Fatalf("Attaches did not initialize properly")

}

cli.DockerCmd(c, "kill", "attacher")

select {

case <-endDone:

case <-time.After(attachWait):

c.Fatalf("Attaches did not finish properly")

}

}

func (s *DockerCLIAttachSuite) TestAttachTTYWithoutStdin(c *testing.T) {

// TODO: Figure out how to get this running again reliable on Windows.

// It works by accident at the moment. Sometimes. I've gone back to v1.13.0 and see the same.

// On Windows, docker run -d -ti busybox causes the container to exit immediately.

// Obviously a year back when I updated the test, that was not the case. However,

// with this, and the test racing with the tear-down which panic's, sometimes CI

// will just fail and `MISS` all the other tests. For now, disabling it. Will

// open an issue to track re-enabling this and root-causing the problem.

testRequires(c, DaemonIsLinux)

out := cli.DockerCmd(c, "run", "-d", "-ti", "busybox").Stdout()

id := strings.TrimSpace(out)

cli.WaitRun(c, id)

done := make(chan error, 1)

go func() {

defer close(done)

cmd := exec.Command(dockerBinary, "attach", id)

if _, err := cmd.StdinPipe(); err != nil {

done <- err

return

}

expected := "the input device is not a TTY"

if runtime.GOOS == "windows" {

expected += ". If you are using mintty, try prefixing the command with 'winpty'"

}

result := icmd.RunCmd(icmd.Cmd{

Command: cmd.Args,

Env: cmd.Env,

Dir: cmd.Dir,

Stdin: cmd.Stdin,

Stdout: cmd.Stdout,

})

if result.Error == nil {

done <- fmt.Errorf("attach should have failed")

return

} else if !strings.Contains(result.Combined(), expected) {

done <- fmt.Errorf("attach failed with error %q: expected %q", out, expected)

return

}

}()

select {

case err := <-done:

assert.NilError(c, err)

case <-time.After(attachWait):

c.Fatal("attach is running but should have failed")

}

}

func (s *DockerCLIAttachSuite) TestAttachDisconnect(c *testing.T) {

testRequires(c, DaemonIsLinux)

out := cli.DockerCmd(c, "run", "-di", "busybox", "/bin/cat").Stdout()

id := strings.TrimSpace(out)

cmd := exec.Command(dockerBinary, "attach", id)

stdin, err := cmd.StdinPipe()

if err != nil {

c.Fatal(err)

}

defer stdin.Close()

stdout, err := cmd.StdoutPipe()

assert.NilError(c, err)

defer stdout.Close()

assert.Assert(c, cmd.Start() == nil)

defer func() {

cmd.Process.Kill()

cmd.Wait()

}()

_, err = stdin.Write([]byte("hello\n"))

assert.NilError(c, err)

out, err = bufio.NewReader(stdout).ReadString('\n')

assert.NilError(c, err)

assert.Equal(c, strings.TrimSpace(out), "hello")

assert.Assert(c, stdin.Close() == nil)

// Expect container to still be running after stdin is closed

running := inspectField(c, id, "State.Running")

assert.Equal(c, running, "true")

}

func (s *DockerCLIAttachSuite) TestAttachPausedContainer(c *testing.T) {

testRequires(c, IsPausable)

runSleepingContainer(c, "-d", "--name=test")

cli.DockerCmd(c, "pause", "test")

result := cli.Docker(cli.Args("attach", "test"))

result.Assert(c, icmd.Expected{

Error: "exit status 1",

ExitCode: 1,

Err: "You cannot attach to a paused container, unpause it first",

})

}