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docker_cli_commit_test.go

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package main

import (

"os/exec"

"strings"

"testing"

)

func TestCommitAfterContainerIsDone(t *testing.T) {

runCmd := exec.Command(dockerBinary, "run", "-i", "-a", "stdin", "busybox", "echo", "foo")

out, _, _, err := runCommandWithStdoutStderr(runCmd)

if err != nil {

t.Fatalf("failed to run container: %s, %v", out, err)

}

cleanedContainerID := stripTrailingCharacters(out)

waitCmd := exec.Command(dockerBinary, "wait", cleanedContainerID)

if _, _, err = runCommandWithOutput(waitCmd); err != nil {

t.Fatalf("error thrown while waiting for container: %s, %v", out, err)

}

commitCmd := exec.Command(dockerBinary, "commit", cleanedContainerID)

out, _, err = runCommandWithOutput(commitCmd)

if err != nil {

t.Fatalf("failed to commit container to image: %s, %v", out, err)

}

cleanedImageID := stripTrailingCharacters(out)

inspectCmd := exec.Command(dockerBinary, "inspect", cleanedImageID)

if out, _, err = runCommandWithOutput(inspectCmd); err != nil {

t.Fatalf("failed to inspect image: %s, %v", out, err)

}

deleteContainer(cleanedContainerID)

deleteImages(cleanedImageID)

logDone("commit - echo foo and commit the image")

}

func TestCommitWithoutPause(t *testing.T) {

runCmd := exec.Command(dockerBinary, "run", "-i", "-a", "stdin", "busybox", "echo", "foo")

out, _, _, err := runCommandWithStdoutStderr(runCmd)

if err != nil {

t.Fatalf("failed to run container: %s, %v", out, err)

}

cleanedContainerID := stripTrailingCharacters(out)

waitCmd := exec.Command(dockerBinary, "wait", cleanedContainerID)

if _, _, err = runCommandWithOutput(waitCmd); err != nil {

t.Fatalf("error thrown while waiting for container: %s, %v", out, err)

}

commitCmd := exec.Command(dockerBinary, "commit", "-p=false", cleanedContainerID)

out, _, err = runCommandWithOutput(commitCmd)

if err != nil {

t.Fatalf("failed to commit container to image: %s, %v", out, err)

}

cleanedImageID := stripTrailingCharacters(out)

inspectCmd := exec.Command(dockerBinary, "inspect", cleanedImageID)

if out, _, err = runCommandWithOutput(inspectCmd); err != nil {

t.Fatalf("failed to inspect image: %s, %v", out, err)

}

deleteContainer(cleanedContainerID)

deleteImages(cleanedImageID)

logDone("commit - echo foo and commit the image with --pause=false")

}

//test commit a paused container should not unpause it after commit

func TestCommitPausedContainer(t *testing.T) {

defer deleteAllContainers()

defer unpauseAllContainers()

cmd := exec.Command(dockerBinary, "run", "-i", "-d", "busybox")

out, _, _, err := runCommandWithStdoutStderr(cmd)

if err != nil {

t.Fatalf("failed to run container: %v, output: %q", err, out)

}

cleanedContainerID := stripTrailingCharacters(out)

cmd = exec.Command(dockerBinary, "pause", cleanedContainerID)

out, _, _, err = runCommandWithStdoutStderr(cmd)

if err != nil {

t.Fatalf("failed to pause container: %v, output: %q", err, out)

}

commitCmd := exec.Command(dockerBinary, "commit", cleanedContainerID)

out, _, err = runCommandWithOutput(commitCmd)

if err != nil {

t.Fatalf("failed to commit container to image: %s, %v", out, err)

}

cleanedImageID := stripTrailingCharacters(out)

defer deleteImages(cleanedImageID)

cmd = exec.Command(dockerBinary, "inspect", "-f", "{{.State.Paused}}", cleanedContainerID)

out, _, _, err = runCommandWithStdoutStderr(cmd)

if err != nil {

t.Fatalf("failed to inspect container: %v, output: %q", err, out)

}

if !strings.Contains(out, "true") {

t.Fatalf("commit should not unpause a paused container")

}

logDone("commit - commit a paused container will not unpause it")

}

func TestCommitNewFile(t *testing.T) {

defer deleteAllContainers()

cmd := exec.Command(dockerBinary, "run", "--name", "commiter", "busybox", "/bin/sh", "-c", "echo koye > /foo")

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

t.Fatal(err)

}

cmd = exec.Command(dockerBinary, "commit", "commiter")

imageID, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(err)

}

imageID = strings.Trim(imageID, "\r\n")

defer deleteImages(imageID)

cmd = exec.Command(dockerBinary, "run", imageID, "cat", "/foo")

out, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(err, out)

}

if actual := strings.Trim(out, "\r\n"); actual != "koye" {

t.Fatalf("expected output koye received %q", actual)

}

logDone("commit - commit file and read")

}

func TestCommitHardlink(t *testing.T) {

defer deleteAllContainers()

cmd := exec.Command(dockerBinary, "run", "-t", "--name", "hardlinks", "busybox", "sh", "-c", "touch file1 && ln file1 file2 && ls -di file1 file2")

firstOuput, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(err)

}

chunks := strings.Split(strings.TrimSpace(firstOuput), " ")

inode := chunks[0]

found := false

for _, chunk := range chunks[1:] {

if chunk == inode {

found = true

break

}

}

if !found {

t.Fatalf("Failed to create hardlink in a container. Expected to find %q in %q", inode, chunks[1:])

}

cmd = exec.Command(dockerBinary, "commit", "hardlinks", "hardlinks")

imageID, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(imageID, err)

}

imageID = strings.Trim(imageID, "\r\n")

defer deleteImages(imageID)

cmd = exec.Command(dockerBinary, "run", "-t", "hardlinks", "ls", "-di", "file1", "file2")

secondOuput, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(err)

}

chunks = strings.Split(strings.TrimSpace(secondOuput), " ")

inode = chunks[0]

found = false

for _, chunk := range chunks[1:] {

if chunk == inode {

found = true

break

}

}

if !found {

t.Fatalf("Failed to create hardlink in a container. Expected to find %q in %q", inode, chunks[1:])

}

logDone("commit - commit hardlinks")

}

func TestCommitTTY(t *testing.T) {

defer deleteImages("ttytest")

defer deleteAllContainers()

cmd := exec.Command(dockerBinary, "run", "-t", "--name", "tty", "busybox", "/bin/ls")

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

t.Fatal(err)

}

cmd = exec.Command(dockerBinary, "commit", "tty", "ttytest")

imageID, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(err)

}

imageID = strings.Trim(imageID, "\r\n")

cmd = exec.Command(dockerBinary, "run", "ttytest", "/bin/ls")

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

t.Fatal(err)

}

logDone("commit - commit tty")

}

func TestCommitWithHostBindMount(t *testing.T) {

defer deleteAllContainers()

cmd := exec.Command(dockerBinary, "run", "--name", "bind-commit", "-v", "/dev/null:/winning", "busybox", "true")

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

t.Fatal(err)

}

cmd = exec.Command(dockerBinary, "commit", "bind-commit", "bindtest")

imageID, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(imageID, err)

}

imageID = strings.Trim(imageID, "\r\n")

defer deleteImages(imageID)

cmd = exec.Command(dockerBinary, "run", "bindtest", "true")

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

t.Fatal(err)

}

logDone("commit - commit bind mounted file")

}

func TestCommitChange(t *testing.T) {

defer deleteAllContainers()

cmd := exec.Command(dockerBinary, "run", "--name", "test", "busybox", "true")

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

t.Fatal(err)

}

cmd = exec.Command(dockerBinary, "commit",

"--change", "EXPOSE 8080",

"--change", "ENV DEBUG true",

"--change", "ENV test 1",

"--change", "ENV PATH /foo",

"test", "test-commit")

imageId, _, err := runCommandWithOutput(cmd)

if err != nil {

t.Fatal(imageId, err)

}

imageId = strings.Trim(imageId, "\r\n")

defer deleteImages(imageId)

expected := map[string]string{

"Config.ExposedPorts": "map[8080/tcp:map[]]",

"Config.Env": "[DEBUG=true test=1 PATH=/foo]",

}

for conf, value := range expected {

res, err := inspectField(imageId, conf)

if err != nil {

t.Errorf("failed to get value %s, error: %s", conf, err)

}

if res != value {

t.Errorf("%s('%s'), expected %s", conf, res, value)

}

}

logDone("commit - commit --change")

}