docker/integration/container_test.go

1721 строка
39 KiB
Go
Исходник Обычный вид История

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package docker
import (
"bufio"
"fmt"
"github.com/dotcloud/docker"
"github.com/dotcloud/docker/utils"
"io"
"io/ioutil"
"os"
"path"
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"regexp"
"sort"
"strings"
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"testing"
"time"
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)
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func TestIDFormat(t *testing.T) {
runtime := mkRuntime(t)
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defer nuke(runtime)
container1, _, err := runtime.Create(
&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/sh", "-c", "echo hello world"},
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},
"",
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)
if err != nil {
t.Fatal(err)
}
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match, err := regexp.Match("^[0-9a-f]{64}$", []byte(container1.ID))
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if err != nil {
t.Fatal(err)
}
if !match {
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t.Fatalf("Invalid container ID: %s", container1.ID)
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}
}
func TestMultipleAttachRestart(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
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container, _, _ := mkContainer(
runtime,
[]string{"_", "/bin/sh", "-c", "i=1; while [ $i -le 5 ]; do i=`expr $i + 1`; echo hello; done"},
t,
)
defer runtime.Destroy(container)
// Simulate 3 client attaching to the container and stop/restart
stdout1, err := container.StdoutPipe()
if err != nil {
t.Fatal(err)
}
stdout2, err := container.StdoutPipe()
if err != nil {
t.Fatal(err)
}
stdout3, err := container.StdoutPipe()
if err != nil {
t.Fatal(err)
}
if err := container.Start(); err != nil {
t.Fatal(err)
}
l1, err := bufio.NewReader(stdout1).ReadString('\n')
if err != nil {
t.Fatal(err)
}
if strings.Trim(l1, " \r\n") != "hello" {
t.Fatalf("Unexpected output. Expected [%s], received [%s]", "hello", l1)
}
l2, err := bufio.NewReader(stdout2).ReadString('\n')
if err != nil {
t.Fatal(err)
}
if strings.Trim(l2, " \r\n") != "hello" {
t.Fatalf("Unexpected output. Expected [%s], received [%s]", "hello", l2)
}
l3, err := bufio.NewReader(stdout3).ReadString('\n')
if err != nil {
t.Fatal(err)
}
if strings.Trim(l3, " \r\n") != "hello" {
t.Fatalf("Unexpected output. Expected [%s], received [%s]", "hello", l3)
}
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if err := container.Stop(10); err != nil {
t.Fatal(err)
}
stdout1, err = container.StdoutPipe()
if err != nil {
t.Fatal(err)
}
stdout2, err = container.StdoutPipe()
if err != nil {
t.Fatal(err)
}
stdout3, err = container.StdoutPipe()
if err != nil {
t.Fatal(err)
}
if err := container.Start(); err != nil {
t.Fatal(err)
}
setTimeout(t, "Timeout reading from the process", 3*time.Second, func() {
l1, err = bufio.NewReader(stdout1).ReadString('\n')
if err != nil {
t.Fatal(err)
}
if strings.Trim(l1, " \r\n") != "hello" {
t.Fatalf("Unexpected output. Expected [%s], received [%s]", "hello", l1)
}
l2, err = bufio.NewReader(stdout2).ReadString('\n')
if err != nil {
t.Fatal(err)
}
if strings.Trim(l2, " \r\n") != "hello" {
t.Fatalf("Unexpected output. Expected [%s], received [%s]", "hello", l2)
}
l3, err = bufio.NewReader(stdout3).ReadString('\n')
if err != nil {
t.Fatal(err)
}
if strings.Trim(l3, " \r\n") != "hello" {
t.Fatalf("Unexpected output. Expected [%s], received [%s]", "hello", l3)
}
})
container.Wait()
}
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func TestDiff(t *testing.T) {
eng := NewTestEngine(t)
runtime := mkRuntimeFromEngine(eng, t)
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defer nuke(runtime)
// Create a container and remove a file
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container1, _, _ := mkContainer(runtime, []string{"_", "/bin/rm", "/etc/passwd"}, t)
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defer runtime.Destroy(container1)
// The changelog should be empty and not fail before run. See #1705
c, err := container1.Changes()
if err != nil {
t.Fatal(err)
}
if len(c) != 0 {
t.Fatalf("Changelog should be empty before run")
}
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if err := container1.Run(); err != nil {
t.Fatal(err)
}
// Check the changelog
c, err = container1.Changes()
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if err != nil {
t.Fatal(err)
}
success := false
for _, elem := range c {
if elem.Path == "/etc/passwd" && elem.Kind == 2 {
success = true
}
}
if !success {
t.Fatalf("/etc/passwd as been removed but is not present in the diff")
}
// Commit the container
img, err := runtime.Commit(container1, "", "", "unit test commited image - diff", "", nil)
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if err != nil {
t.Fatal(err)
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}
// Create a new container from the commited image
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container2, _, _ := mkContainer(runtime, []string{img.ID, "cat", "/etc/passwd"}, t)
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defer runtime.Destroy(container2)
if err := container2.Run(); err != nil {
t.Fatal(err)
}
// Check the changelog
c, err = container2.Changes()
if err != nil {
t.Fatal(err)
}
for _, elem := range c {
if elem.Path == "/etc/passwd" {
t.Fatalf("/etc/passwd should not be present in the diff after commit.")
}
}
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// Create a new container
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container3, _, _ := mkContainer(runtime, []string{"_", "rm", "/bin/httpd"}, t)
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defer runtime.Destroy(container3)
if err := container3.Run(); err != nil {
t.Fatal(err)
}
// Check the changelog
c, err = container3.Changes()
if err != nil {
t.Fatal(err)
}
success = false
for _, elem := range c {
if elem.Path == "/bin/httpd" && elem.Kind == 2 {
success = true
}
}
if !success {
t.Fatalf("/bin/httpd should be present in the diff after commit.")
}
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}
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func TestCommitAutoRun(t *testing.T) {
runtime := mkRuntime(t)
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defer nuke(runtime)
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container1, _, _ := mkContainer(runtime, []string{"_", "/bin/sh", "-c", "echo hello > /world"}, t)
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defer runtime.Destroy(container1)
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if container1.State.IsRunning() {
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t.Errorf("Container shouldn't be running")
}
if err := container1.Run(); err != nil {
t.Fatal(err)
}
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if container1.State.IsRunning() {
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t.Errorf("Container shouldn't be running")
}
img, err := runtime.Commit(container1, "", "", "unit test commited image", "", &docker.Config{Cmd: []string{"cat", "/world"}})
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if err != nil {
t.Error(err)
}
// FIXME: Make a TestCommit that stops here and check docker.root/layers/img.id/world
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container2, _, _ := mkContainer(runtime, []string{img.ID}, t)
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defer runtime.Destroy(container2)
stdout, err := container2.StdoutPipe()
if err != nil {
t.Fatal(err)
}
stderr, err := container2.StderrPipe()
if err != nil {
t.Fatal(err)
}
if err := container2.Start(); err != nil {
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t.Fatal(err)
}
container2.Wait()
output, err := ioutil.ReadAll(stdout)
if err != nil {
t.Fatal(err)
}
output2, err := ioutil.ReadAll(stderr)
if err != nil {
t.Fatal(err)
}
if err := stdout.Close(); err != nil {
t.Fatal(err)
}
if err := stderr.Close(); err != nil {
t.Fatal(err)
}
if string(output) != "hello\n" {
t.Fatalf("Unexpected output. Expected %s, received: %s (err: %s)", "hello\n", output, output2)
}
}
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func TestCommitRun(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
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container1, _, _ := mkContainer(runtime, []string{"_", "/bin/sh", "-c", "echo hello > /world"}, t)
defer runtime.Destroy(container1)
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if container1.State.IsRunning() {
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t.Errorf("Container shouldn't be running")
}
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if err := container1.Run(); err != nil {
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t.Fatal(err)
}
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if container1.State.IsRunning() {
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t.Errorf("Container shouldn't be running")
}
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img, err := runtime.Commit(container1, "", "", "unit test commited image", "", nil)
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if err != nil {
t.Error(err)
}
// FIXME: Make a TestCommit that stops here and check docker.root/layers/img.id/world
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container2, _, _ := mkContainer(runtime, []string{img.ID, "cat", "/world"}, t)
defer runtime.Destroy(container2)
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stdout, err := container2.StdoutPipe()
if err != nil {
t.Fatal(err)
}
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stderr, err := container2.StderrPipe()
if err != nil {
t.Fatal(err)
}
if err := container2.Start(); err != nil {
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t.Fatal(err)
}
container2.Wait()
output, err := ioutil.ReadAll(stdout)
if err != nil {
t.Fatal(err)
}
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output2, err := ioutil.ReadAll(stderr)
if err != nil {
t.Fatal(err)
}
if err := stdout.Close(); err != nil {
t.Fatal(err)
}
if err := stderr.Close(); err != nil {
t.Fatal(err)
}
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if string(output) != "hello\n" {
t.Fatalf("Unexpected output. Expected %s, received: %s (err: %s)", "hello\n", output, output2)
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}
}
func TestStart(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, _ := mkContainer(runtime, []string{"-i", "_", "/bin/cat"}, t)
defer runtime.Destroy(container)
cStdin, err := container.StdinPipe()
if err != nil {
t.Fatal(err)
}
if err := container.Start(); err != nil {
t.Fatal(err)
}
// Give some time to the process to start
container.WaitTimeout(500 * time.Millisecond)
if !container.State.IsRunning() {
t.Errorf("Container should be running")
}
if err := container.Start(); err == nil {
t.Fatalf("A running container should be able to be started")
}
// Try to avoid the timeout in destroy. Best effort, don't check error
cStdin.Close()
container.WaitTimeout(2 * time.Second)
}
func TestCpuShares(t *testing.T) {
_, err1 := os.Stat("/sys/fs/cgroup/cpuacct,cpu")
_, err2 := os.Stat("/sys/fs/cgroup/cpu,cpuacct")
if err1 == nil || err2 == nil {
t.Skip("Fixme. Setting cpu cgroup shares doesn't work in dind on a Fedora host. The lxc utils are confused by the cpu,cpuacct mount.")
}
runtime := mkRuntime(t)
defer nuke(runtime)
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container, _, _ := mkContainer(runtime, []string{"-m", "33554432", "-c", "1000", "-i", "_", "/bin/cat"}, t)
defer runtime.Destroy(container)
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cStdin, err := container.StdinPipe()
if err != nil {
t.Fatal(err)
}
if err := container.Start(); err != nil {
t.Fatal(err)
}
// Give some time to the process to start
container.WaitTimeout(500 * time.Millisecond)
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if !container.State.IsRunning() {
t.Errorf("Container should be running")
}
if err := container.Start(); err == nil {
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t.Fatalf("A running container should be able to be started")
}
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// Try to avoid the timeout in destroy. Best effort, don't check error
cStdin.Close()
container.WaitTimeout(2 * time.Second)
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}
func TestRun(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
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container, _, _ := mkContainer(runtime, []string{"_", "ls", "-al"}, t)
defer runtime.Destroy(container)
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if container.State.IsRunning() {
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t.Errorf("Container shouldn't be running")
}
if err := container.Run(); err != nil {
t.Fatal(err)
}
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if container.State.IsRunning() {
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t.Errorf("Container shouldn't be running")
}
}
func TestOutput(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(
&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"echo", "-n", "foobar"},
},
"",
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)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
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output, err := container.Output()
if err != nil {
t.Fatal(err)
}
if string(output) != "foobar" {
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t.Fatalf("%s != %s", string(output), "foobar")
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}
}
func TestContainerNetwork(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(
&docker.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"ping", "-c", "1", "127.0.0.1"},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
if err := container.Run(); err != nil {
t.Fatal(err)
}
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if code := container.State.GetExitCode(); code != 0 {
t.Fatalf("Unexpected ping 127.0.0.1 exit code %d (expected 0)", code)
}
}
func TestKillDifferentUser(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(&docker.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"cat"},
OpenStdin: true,
User: "daemon",
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
// FIXME @shykes: this seems redundant, but is very old, I'm leaving it in case
// there is a side effect I'm not seeing.
// defer container.stdin.Close()
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if container.State.IsRunning() {
t.Errorf("Container shouldn't be running")
}
if err := container.Start(); err != nil {
t.Fatal(err)
}
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setTimeout(t, "Waiting for the container to be started timed out", 2*time.Second, func() {
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for !container.State.IsRunning() {
time.Sleep(10 * time.Millisecond)
}
})
setTimeout(t, "read/write assertion timed out", 2*time.Second, func() {
out, _ := container.StdoutPipe()
in, _ := container.StdinPipe()
if err := assertPipe("hello\n", "hello", out, in, 150); err != nil {
t.Fatal(err)
}
})
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if err := container.Kill(); err != nil {
t.Fatal(err)
}
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if container.State.IsRunning() {
t.Errorf("Container shouldn't be running")
}
container.Wait()
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if container.State.IsRunning() {
t.Errorf("Container shouldn't be running")
}
// Try stopping twice
if err := container.Kill(); err != nil {
t.Fatal(err)
}
}
// Test that creating a container with a volume doesn't crash. Regression test for #995.
func TestCreateVolume(t *testing.T) {
eng := NewTestEngine(t)
runtime := mkRuntimeFromEngine(eng, t)
defer nuke(runtime)
config, hc, _, err := docker.ParseRun([]string{"-v", "/var/lib/data", unitTestImageID, "echo", "hello", "world"}, nil)
if err != nil {
t.Fatal(err)
}
jobCreate := eng.Job("create")
if err := jobCreate.ImportEnv(config); err != nil {
t.Fatal(err)
}
var id string
jobCreate.Stdout.AddString(&id)
if err := jobCreate.Run(); err != nil {
t.Fatal(err)
}
jobStart := eng.Job("start", id)
if err := jobStart.ImportEnv(hc); err != nil {
t.Fatal(err)
}
if err := jobStart.Run(); err != nil {
t.Fatal(err)
}
// FIXME: this hack can be removed once Wait is a job
c := runtime.Get(id)
if c == nil {
t.Fatalf("Couldn't retrieve container %s from runtime", id)
}
c.WaitTimeout(500 * time.Millisecond)
c.Wait()
}
func TestKill(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"sleep", "2"},
},
"",
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)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
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if container.State.IsRunning() {
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t.Errorf("Container shouldn't be running")
}
if err := container.Start(); err != nil {
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t.Fatal(err)
}
// Give some time to lxc to spawn the process
container.WaitTimeout(500 * time.Millisecond)
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if !container.State.IsRunning() {
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t.Errorf("Container should be running")
}
if err := container.Kill(); err != nil {
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t.Fatal(err)
}
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if container.State.IsRunning() {
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t.Errorf("Container shouldn't be running")
}
container.Wait()
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if container.State.IsRunning() {
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t.Errorf("Container shouldn't be running")
}
// Try stopping twice
if err := container.Kill(); err != nil {
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t.Fatal(err)
}
}
func TestExitCode(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
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trueContainer, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/true"},
}, "")
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if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(trueContainer)
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if err := trueContainer.Run(); err != nil {
t.Fatal(err)
}
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if code := trueContainer.State.GetExitCode(); code != 0 {
t.Fatalf("Unexpected exit code %d (expected 0)", code)
}
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falseContainer, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/false"},
}, "")
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if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(falseContainer)
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if err := falseContainer.Run(); err != nil {
t.Fatal(err)
}
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if code := falseContainer.State.GetExitCode(); code != 1 {
t.Fatalf("Unexpected exit code %d (expected 1)", code)
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}
}
func TestRestart(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"echo", "-n", "foobar"},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
output, err := container.Output()
if err != nil {
t.Fatal(err)
}
if string(output) != "foobar" {
t.Error(string(output))
}
// Run the container again and check the output
output, err = container.Output()
if err != nil {
t.Fatal(err)
}
if string(output) != "foobar" {
t.Error(string(output))
}
}
func TestRestartStdin(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"cat"},
OpenStdin: true,
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
stdin, err := container.StdinPipe()
if err != nil {
t.Fatal(err)
}
stdout, err := container.StdoutPipe()
if err != nil {
t.Fatal(err)
}
if err := container.Start(); err != nil {
t.Fatal(err)
}
if _, err := io.WriteString(stdin, "hello world"); err != nil {
t.Fatal(err)
}
if err := stdin.Close(); err != nil {
t.Fatal(err)
}
container.Wait()
output, err := ioutil.ReadAll(stdout)
if err != nil {
t.Fatal(err)
}
if err := stdout.Close(); err != nil {
t.Fatal(err)
}
if string(output) != "hello world" {
t.Fatalf("Unexpected output. Expected %s, received: %s", "hello world", string(output))
}
// Restart and try again
stdin, err = container.StdinPipe()
if err != nil {
t.Fatal(err)
}
stdout, err = container.StdoutPipe()
if err != nil {
t.Fatal(err)
}
if err := container.Start(); err != nil {
t.Fatal(err)
}
if _, err := io.WriteString(stdin, "hello world #2"); err != nil {
t.Fatal(err)
}
if err := stdin.Close(); err != nil {
t.Fatal(err)
}
container.Wait()
output, err = ioutil.ReadAll(stdout)
if err != nil {
t.Fatal(err)
}
if err := stdout.Close(); err != nil {
t.Fatal(err)
}
if string(output) != "hello world #2" {
t.Fatalf("Unexpected output. Expected %s, received: %s", "hello world #2", string(output))
}
}
func TestUser(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
// Default user must be root
container, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"id"},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
output, err := container.Output()
if err != nil {
t.Fatal(err)
}
if !strings.Contains(string(output), "uid=0(root) gid=0(root)") {
t.Error(string(output))
}
// Set a username
container, _, err = runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"id"},
User: "root",
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
output, err = container.Output()
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if code := container.State.GetExitCode(); err != nil || code != 0 {
t.Fatal(err)
}
if !strings.Contains(string(output), "uid=0(root) gid=0(root)") {
t.Error(string(output))
}
// Set a UID
container, _, err = runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"id"},
User: "0",
},
"",
)
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if code := container.State.GetExitCode(); err != nil || code != 0 {
t.Fatal(err)
}
defer runtime.Destroy(container)
output, err = container.Output()
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if code := container.State.GetExitCode(); err != nil || code != 0 {
t.Fatal(err)
}
if !strings.Contains(string(output), "uid=0(root) gid=0(root)") {
t.Error(string(output))
}
// Set a different user by uid
container, _, err = runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"id"},
User: "1",
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
output, err = container.Output()
if err != nil {
t.Fatal(err)
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} else if code := container.State.GetExitCode(); code != 0 {
t.Fatalf("Container exit code is invalid: %d\nOutput:\n%s\n", code, output)
}
if !strings.Contains(string(output), "uid=1(daemon) gid=1(daemon)") {
t.Error(string(output))
}
// Set a different user by username
container, _, err = runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"id"},
User: "daemon",
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
output, err = container.Output()
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if code := container.State.GetExitCode(); err != nil || code != 0 {
t.Fatal(err)
}
if !strings.Contains(string(output), "uid=1(daemon) gid=1(daemon)") {
t.Error(string(output))
}
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// Test an wrong username
container, _, err = runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"id"},
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User: "unknownuser",
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},
"",
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)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
output, err = container.Output()
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if container.State.GetExitCode() == 0 {
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t.Fatal("Starting container with wrong uid should fail but it passed.")
}
}
func TestMultipleContainers(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container1, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"sleep", "2"},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container1)
container2, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"sleep", "2"},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container2)
// Start both containers
if err := container1.Start(); err != nil {
t.Fatal(err)
}
if err := container2.Start(); err != nil {
t.Fatal(err)
}
// Make sure they are running before trying to kill them
container1.WaitTimeout(250 * time.Millisecond)
container2.WaitTimeout(250 * time.Millisecond)
// If we are here, both containers should be running
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if !container1.State.IsRunning() {
t.Fatal("Container not running")
}
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if !container2.State.IsRunning() {
t.Fatal("Container not running")
}
// Kill them
if err := container1.Kill(); err != nil {
t.Fatal(err)
}
if err := container2.Kill(); err != nil {
t.Fatal(err)
}
}
func TestStdin(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"cat"},
OpenStdin: true,
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
stdin, err := container.StdinPipe()
if err != nil {
t.Fatal(err)
}
stdout, err := container.StdoutPipe()
if err != nil {
t.Fatal(err)
}
if err := container.Start(); err != nil {
t.Fatal(err)
}
defer stdin.Close()
defer stdout.Close()
if _, err := io.WriteString(stdin, "hello world"); err != nil {
t.Fatal(err)
}
if err := stdin.Close(); err != nil {
t.Fatal(err)
}
container.Wait()
output, err := ioutil.ReadAll(stdout)
if err != nil {
t.Fatal(err)
}
if string(output) != "hello world" {
t.Fatalf("Unexpected output. Expected %s, received: %s", "hello world", string(output))
}
}
func TestTty(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"cat"},
OpenStdin: true,
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
stdin, err := container.StdinPipe()
if err != nil {
t.Fatal(err)
}
stdout, err := container.StdoutPipe()
if err != nil {
t.Fatal(err)
}
if err := container.Start(); err != nil {
t.Fatal(err)
}
defer stdin.Close()
defer stdout.Close()
if _, err := io.WriteString(stdin, "hello world"); err != nil {
t.Fatal(err)
}
if err := stdin.Close(); err != nil {
t.Fatal(err)
}
container.Wait()
output, err := ioutil.ReadAll(stdout)
if err != nil {
t.Fatal(err)
}
if string(output) != "hello world" {
t.Fatalf("Unexpected output. Expected %s, received: %s", "hello world", string(output))
}
}
func TestEnv(t *testing.T) {
os.Setenv("TRUE", "false")
os.Setenv("TRICKY", "tri\ncky\n")
runtime := mkRuntime(t)
defer nuke(runtime)
config, _, _, err := docker.ParseRun([]string{"-e=FALSE=true", "-e=TRUE", "-e=TRICKY", GetTestImage(runtime).ID, "env"}, nil)
if err != nil {
t.Fatal(err)
}
container, _, err := runtime.Create(config, "")
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
stdout, err := container.StdoutPipe()
if err != nil {
t.Fatal(err)
}
defer stdout.Close()
if err := container.Start(); err != nil {
t.Fatal(err)
}
container.Wait()
output, err := ioutil.ReadAll(stdout)
if err != nil {
t.Fatal(err)
}
actualEnv := strings.Split(string(output), "\n")
if actualEnv[len(actualEnv)-1] == "" {
actualEnv = actualEnv[:len(actualEnv)-1]
}
sort.Strings(actualEnv)
goodEnv := []string{
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"HOME=/",
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"container=lxc",
"HOSTNAME=" + utils.TruncateID(container.ID),
"FALSE=true",
"TRUE=false",
"TRICKY=tri",
"cky",
"",
}
sort.Strings(goodEnv)
if len(goodEnv) != len(actualEnv) {
t.Fatalf("Wrong environment: should be %d variables, not: '%s'\n", len(goodEnv), strings.Join(actualEnv, ", "))
}
for i := range goodEnv {
if actualEnv[i] != goodEnv[i] {
t.Fatalf("Wrong environment variable: should be %s, not %s", goodEnv[i], actualEnv[i])
}
}
}
func TestEntrypoint(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(
&docker.Config{
Image: GetTestImage(runtime).ID,
Entrypoint: []string{"/bin/echo"},
Cmd: []string{"-n", "foobar"},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
output, err := container.Output()
if err != nil {
t.Fatal(err)
}
if string(output) != "foobar" {
t.Error(string(output))
}
}
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func TestEntrypointNoCmd(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(
&docker.Config{
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Image: GetTestImage(runtime).ID,
Entrypoint: []string{"/bin/echo", "foobar"},
},
"",
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)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
output, err := container.Output()
if err != nil {
t.Fatal(err)
}
if strings.Trim(string(output), "\r\n") != "foobar" {
t.Error(string(output))
}
}
func BenchmarkRunSequencial(b *testing.B) {
runtime := mkRuntime(b)
defer nuke(runtime)
for i := 0; i < b.N; i++ {
container, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"echo", "-n", "foo"},
},
"",
)
if err != nil {
b.Fatal(err)
}
defer runtime.Destroy(container)
output, err := container.Output()
if err != nil {
b.Fatal(err)
}
if string(output) != "foo" {
b.Fatalf("Unexpected output: %s", output)
}
if err := runtime.Destroy(container); err != nil {
b.Fatal(err)
}
}
}
func BenchmarkRunParallel(b *testing.B) {
runtime := mkRuntime(b)
defer nuke(runtime)
var tasks []chan error
for i := 0; i < b.N; i++ {
complete := make(chan error)
tasks = append(tasks, complete)
go func(i int, complete chan error) {
container, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"echo", "-n", "foo"},
},
"",
)
if err != nil {
complete <- err
return
}
defer runtime.Destroy(container)
if err := container.Start(); err != nil {
complete <- err
return
}
if err := container.WaitTimeout(15 * time.Second); err != nil {
complete <- err
return
}
// if string(output) != "foo" {
// complete <- fmt.Errorf("Unexecpted output: %v", string(output))
// }
if err := runtime.Destroy(container); err != nil {
complete <- err
return
}
complete <- nil
}(i, complete)
}
var errors []error
for _, task := range tasks {
err := <-task
if err != nil {
errors = append(errors, err)
}
}
if len(errors) > 0 {
b.Fatal(errors)
}
}
func tempDir(t *testing.T) string {
tmpDir, err := ioutil.TempDir("", "docker-test-container")
if err != nil {
t.Fatal(err)
}
return tmpDir
}
// Test for #1737
func TestCopyVolumeUidGid(t *testing.T) {
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eng := NewTestEngine(t)
r := mkRuntimeFromEngine(eng, t)
defer r.Nuke()
// Add directory not owned by root
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container1, _, _ := mkContainer(r, []string{"_", "/bin/sh", "-c", "mkdir -p /hello && touch /hello/test.txt && chown daemon.daemon /hello"}, t)
defer r.Destroy(container1)
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if container1.State.IsRunning() {
t.Errorf("Container shouldn't be running")
}
if err := container1.Run(); err != nil {
t.Fatal(err)
}
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if container1.State.IsRunning() {
t.Errorf("Container shouldn't be running")
}
img, err := r.Commit(container1, "", "", "unit test commited image", "", nil)
if err != nil {
t.Error(err)
}
// Test that the uid and gid is copied from the image to the volume
tmpDir1 := tempDir(t)
defer os.RemoveAll(tmpDir1)
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stdout1, _ := runContainer(eng, r, []string{"-v", "/hello", img.ID, "stat", "-c", "%U %G", "/hello"}, t)
if !strings.Contains(stdout1, "daemon daemon") {
t.Fatal("Container failed to transfer uid and gid to volume")
}
}
// Test for #1582
func TestCopyVolumeContent(t *testing.T) {
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eng := NewTestEngine(t)
r := mkRuntimeFromEngine(eng, t)
defer r.Nuke()
// Put some content in a directory of a container and commit it
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container1, _, _ := mkContainer(r, []string{"_", "/bin/sh", "-c", "mkdir -p /hello/local && echo hello > /hello/local/world"}, t)
defer r.Destroy(container1)
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if container1.State.IsRunning() {
t.Errorf("Container shouldn't be running")
}
if err := container1.Run(); err != nil {
t.Fatal(err)
}
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if container1.State.IsRunning() {
t.Errorf("Container shouldn't be running")
}
img, err := r.Commit(container1, "", "", "unit test commited image", "", nil)
if err != nil {
t.Error(err)
}
// Test that the content is copied from the image to the volume
tmpDir1 := tempDir(t)
defer os.RemoveAll(tmpDir1)
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stdout1, _ := runContainer(eng, r, []string{"-v", "/hello", img.ID, "find", "/hello"}, t)
if !(strings.Contains(stdout1, "/hello/local/world") && strings.Contains(stdout1, "/hello/local")) {
t.Fatal("Container failed to transfer content to volume")
}
}
func TestBindMounts(t *testing.T) {
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eng := NewTestEngine(t)
r := mkRuntimeFromEngine(eng, t)
defer r.Nuke()
tmpDir := tempDir(t)
defer os.RemoveAll(tmpDir)
writeFile(path.Join(tmpDir, "touch-me"), "", t)
// Test reading from a read-only bind mount
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stdout, _ := runContainer(eng, r, []string{"-v", fmt.Sprintf("%s:/tmp:ro", tmpDir), "_", "ls", "/tmp"}, t)
if !strings.Contains(stdout, "touch-me") {
t.Fatal("Container failed to read from bind mount")
}
// test writing to bind mount
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runContainer(eng, r, []string{"-v", fmt.Sprintf("%s:/tmp:rw", tmpDir), "_", "touch", "/tmp/holla"}, t)
readFile(path.Join(tmpDir, "holla"), t) // Will fail if the file doesn't exist
// test mounting to an illegal destination directory
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if _, err := runContainer(eng, r, []string{"-v", fmt.Sprintf("%s:.", tmpDir), "_", "ls", "."}, nil); err == nil {
t.Fatal("Container bind mounted illegal directory")
}
// test mount a file
runContainer(eng, r, []string{"-v", fmt.Sprintf("%s/holla:/tmp/holla:rw", tmpDir), "_", "sh", "-c", "echo -n 'yotta' > /tmp/holla"}, t)
content := readFile(path.Join(tmpDir, "holla"), t) // Will fail if the file doesn't exist
if content != "yotta" {
t.Fatal("Container failed to write to bind mount file")
}
}
// Test that -volumes-from supports both read-only mounts
func TestFromVolumesInReadonlyMode(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(
&docker.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/echo", "-n", "foobar"},
Volumes: map[string]struct{}{"/test": {}},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
_, err = container.Output()
if err != nil {
t.Fatal(err)
}
if !container.VolumesRW["/test"] {
t.Fail()
}
container2, _, err := runtime.Create(
&docker.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/echo", "-n", "foobar"},
VolumesFrom: container.ID + ":ro",
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container2)
_, err = container2.Output()
if err != nil {
t.Fatal(err)
}
if container.Volumes["/test"] != container2.Volumes["/test"] {
t.Logf("container volumes do not match: %s | %s ",
container.Volumes["/test"],
container2.Volumes["/test"])
t.Fail()
}
_, exists := container2.VolumesRW["/test"]
if !exists {
t.Logf("container2 is missing '/test' volume: %s", container2.VolumesRW)
t.Fail()
}
if container2.VolumesRW["/test"] != false {
t.Log("'/test' volume mounted in read-write mode, expected read-only")
t.Fail()
}
}
// Test that VolumesRW values are copied to the new container. Regression test for #1201
func TestVolumesFromReadonlyMount(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(
&docker.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/echo", "-n", "foobar"},
Volumes: map[string]struct{}{"/test": {}},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
_, err = container.Output()
if err != nil {
t.Fatal(err)
}
if !container.VolumesRW["/test"] {
t.Fail()
}
container2, _, err := runtime.Create(
&docker.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/echo", "-n", "foobar"},
VolumesFrom: container.ID,
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container2)
_, err = container2.Output()
if err != nil {
t.Fatal(err)
}
if container.Volumes["/test"] != container2.Volumes["/test"] {
t.Fail()
}
actual, exists := container2.VolumesRW["/test"]
if !exists {
t.Fail()
}
if container.VolumesRW["/test"] != actual {
t.Fail()
}
}
// Test that restarting a container with a volume does not create a new volume on restart. Regression test for #819.
func TestRestartWithVolumes(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(&docker.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"echo", "-n", "foobar"},
Volumes: map[string]struct{}{"/test": {}},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
for key := range container.Config.Volumes {
if key != "/test" {
t.Fail()
}
}
_, err = container.Output()
if err != nil {
t.Fatal(err)
}
expected := container.Volumes["/test"]
if expected == "" {
t.Fail()
}
// Run the container again to verify the volume path persists
_, err = container.Output()
if err != nil {
t.Fatal(err)
}
actual := container.Volumes["/test"]
if expected != actual {
t.Fatalf("Expected volume path: %s Actual path: %s", expected, actual)
}
}
// Test for #1351
func TestVolumesFromWithVolumes(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(&docker.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"sh", "-c", "echo -n bar > /test/foo"},
Volumes: map[string]struct{}{"/test": {}},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
for key := range container.Config.Volumes {
if key != "/test" {
t.Fail()
}
}
_, err = container.Output()
if err != nil {
t.Fatal(err)
}
expected := container.Volumes["/test"]
if expected == "" {
t.Fail()
}
container2, _, err := runtime.Create(
&docker.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"cat", "/test/foo"},
VolumesFrom: container.ID,
Volumes: map[string]struct{}{"/test": {}},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container2)
output, err := container2.Output()
if err != nil {
t.Fatal(err)
}
if string(output) != "bar" {
t.Fail()
}
if container.Volumes["/test"] != container2.Volumes["/test"] {
t.Fail()
}
// Ensure it restarts successfully
_, err = container2.Output()
if err != nil {
t.Fatal(err)
}
}
func TestOnlyLoopbackExistsWhenUsingDisableNetworkOption(t *testing.T) {
eng := NewTestEngine(t)
runtime := mkRuntimeFromEngine(eng, t)
defer nuke(runtime)
config, hc, _, err := docker.ParseRun([]string{"-n=false", GetTestImage(runtime).ID, "ip", "addr", "show"}, nil)
if err != nil {
t.Fatal(err)
}
jobCreate := eng.Job("create")
if err := jobCreate.ImportEnv(config); err != nil {
t.Fatal(err)
}
var id string
jobCreate.Stdout.AddString(&id)
if err := jobCreate.Run(); err != nil {
t.Fatal(err)
}
// FIXME: this hack can be removed once Wait is a job
c := runtime.Get(id)
if c == nil {
t.Fatalf("Couldn't retrieve container %s from runtime", id)
}
stdout, err := c.StdoutPipe()
if err != nil {
t.Fatal(err)
}
jobStart := eng.Job("start", id)
if err := jobStart.ImportEnv(hc); err != nil {
t.Fatal(err)
}
if err := jobStart.Run(); err != nil {
t.Fatal(err)
}
c.WaitTimeout(500 * time.Millisecond)
c.Wait()
output, err := ioutil.ReadAll(stdout)
if err != nil {
t.Fatal(err)
}
interfaces := regexp.MustCompile(`(?m)^[0-9]+: [a-zA-Z0-9]+`).FindAllString(string(output), -1)
if len(interfaces) != 1 {
t.Fatalf("Wrong interface count in test container: expected [*: lo], got %s", interfaces)
}
if !strings.HasSuffix(interfaces[0], ": lo") {
t.Fatalf("Wrong interface in test container: expected [*: lo], got %s", interfaces)
}
}
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func TestPrivilegedCanMknod(t *testing.T) {
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eng := NewTestEngine(t)
runtime := mkRuntimeFromEngine(eng, t)
defer runtime.Nuke()
if output, _ := runContainer(eng, runtime, []string{"-privileged", "_", "sh", "-c", "mknod /tmp/sda b 8 0 && echo ok"}, t); output != "ok\n" {
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t.Fatal("Could not mknod into privileged container")
}
}
func TestPrivilegedCanMount(t *testing.T) {
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eng := NewTestEngine(t)
runtime := mkRuntimeFromEngine(eng, t)
defer runtime.Nuke()
if output, _ := runContainer(eng, runtime, []string{"-privileged", "_", "sh", "-c", "mount -t tmpfs none /tmp && echo ok"}, t); output != "ok\n" {
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t.Fatal("Could not mount into privileged container")
}
}
func TestPrivilegedCannotMknod(t *testing.T) {
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eng := NewTestEngine(t)
runtime := mkRuntimeFromEngine(eng, t)
defer runtime.Nuke()
if output, _ := runContainer(eng, runtime, []string{"_", "sh", "-c", "mknod /tmp/sda b 8 0 || echo ok"}, t); output != "ok\n" {
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t.Fatal("Could mknod into secure container")
}
}
func TestPrivilegedCannotMount(t *testing.T) {
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eng := NewTestEngine(t)
runtime := mkRuntimeFromEngine(eng, t)
defer runtime.Nuke()
if output, _ := runContainer(eng, runtime, []string{"_", "sh", "-c", "mount -t tmpfs none /tmp || echo ok"}, t); output != "ok\n" {
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t.Fatal("Could mount into secure container")
}
}
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func TestMultipleVolumesFrom(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"sh", "-c", "echo -n bar > /test/foo"},
Volumes: map[string]struct{}{"/test": {}},
},
"",
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)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
for key := range container.Config.Volumes {
if key != "/test" {
t.Fail()
}
}
_, err = container.Output()
if err != nil {
t.Fatal(err)
}
expected := container.Volumes["/test"]
if expected == "" {
t.Fail()
}
container2, _, err := runtime.Create(
&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"sh", "-c", "echo -n bar > /other/foo"},
Volumes: map[string]struct{}{"/other": {}},
},
"",
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)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container2)
for key := range container2.Config.Volumes {
if key != "/other" {
t.FailNow()
}
}
if _, err := container2.Output(); err != nil {
t.Fatal(err)
}
container3, _, err := runtime.Create(
&docker.Config{
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Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/echo", "-n", "foobar"},
VolumesFrom: strings.Join([]string{container.ID, container2.ID}, ","),
}, "")
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if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container3)
if _, err := container3.Output(); err != nil {
t.Fatal(err)
}
if container3.Volumes["/test"] != container.Volumes["/test"] {
t.Fail()
}
if container3.Volumes["/other"] != container2.Volumes["/other"] {
t.Fail()
}
}
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func TestRestartGhost(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(
&docker.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"sh", "-c", "echo -n bar > /test/foo"},
Volumes: map[string]struct{}{"/test": {}},
},
"",
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)
if err != nil {
t.Fatal(err)
}
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if err := container.Kill(); err != nil {
t.Fatal(err)
}
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container.State.SetGhost(true)
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_, err = container.Output()
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if err != nil {
t.Fatal(err)
}
}