mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
690 lines
14 KiB
Go
690 lines
14 KiB
Go
package docker
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import (
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"bufio"
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"fmt"
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"io"
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"io/ioutil"
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"math/rand"
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"os"
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"sort"
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"strings"
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"testing"
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"time"
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)
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func TestCommitRun(t *testing.T) {
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runtime, err := newTestRuntime()
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if err != nil {
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t.Fatal(err)
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}
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defer nuke(runtime)
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container1, err := runtime.Create(
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GetTestImage(runtime).Id,
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&Config{
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Cmd: []string{"/bin/sh", "-c", "echo hello > /world"},
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Memory: 33554432,
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container1)
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if container1.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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if err := container1.Run(); err != nil {
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t.Fatal(err)
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}
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if container1.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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rwTar, err := container1.ExportRw()
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if err != nil {
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t.Error(err)
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}
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img, err := runtime.graph.Create(rwTar, container1, "unit test commited image")
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if err != nil {
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t.Error(err)
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}
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// FIXME: Make a TestCommit that stops here and check docker.root/layers/img.id/world
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container2, err := runtime.Create(
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img.Id,
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&Config{
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Memory: 33554432,
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Cmd: []string{"cat", "/world"},
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container2)
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stdout, err := container2.StdoutPipe()
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stderr, err := container2.StderrPipe()
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if err := container2.Start(); err != nil {
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t.Fatal(err)
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}
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container2.Wait()
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output, err := ioutil.ReadAll(stdout)
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output2, err := ioutil.ReadAll(stderr)
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stdout.Close()
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stderr.Close()
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if string(output) != "hello\n" {
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t.Fatalf("\nout: %s\nerr: %s\n", string(output), string(output2))
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}
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}
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func TestRun(t *testing.T) {
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runtime, err := newTestRuntime()
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if err != nil {
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t.Fatal(err)
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}
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defer nuke(runtime)
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container, err := runtime.Create(
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GetTestImage(runtime).Id,
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&Config{
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Memory: 33554432,
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Cmd: []string{"ls", "-al"},
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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if err := container.Run(); err != nil {
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t.Fatal(err)
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}
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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}
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func TestOutput(t *testing.T) {
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runtime, err := newTestRuntime()
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if err != nil {
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t.Fatal(err)
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}
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defer nuke(runtime)
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container, err := runtime.Create(
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GetTestImage(runtime).Id,
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&Config{
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Cmd: []string{"echo", "-n", "foobar"},
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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output, err := container.Output()
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if err != nil {
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t.Fatal(err)
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}
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if string(output) != "foobar" {
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t.Error(string(output))
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}
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}
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func TestKill(t *testing.T) {
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runtime, err := newTestRuntime()
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if err != nil {
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t.Fatal(err)
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}
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defer nuke(runtime)
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container, err := runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"cat", "/dev/zero"},
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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if err := container.Start(); err != nil {
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t.Fatal(err)
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}
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if !container.State.Running {
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t.Errorf("Container should be running")
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}
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if err := container.Kill(); err != nil {
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t.Fatal(err)
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}
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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container.Wait()
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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// Try stopping twice
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if err := container.Kill(); err != nil {
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t.Fatal(err)
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}
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}
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func TestExitCode(t *testing.T) {
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runtime, err := newTestRuntime()
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if err != nil {
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t.Fatal(err)
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}
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defer nuke(runtime)
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trueContainer, err := runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"/bin/true", ""},
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(trueContainer)
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if err := trueContainer.Run(); err != nil {
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t.Fatal(err)
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}
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falseContainer, err := runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"/bin/false", ""},
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(falseContainer)
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if err := falseContainer.Run(); err != nil {
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t.Fatal(err)
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}
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if trueContainer.State.ExitCode != 0 {
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t.Errorf("Unexpected exit code %v", trueContainer.State.ExitCode)
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}
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if falseContainer.State.ExitCode != 1 {
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t.Errorf("Unexpected exit code %v", falseContainer.State.ExitCode)
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}
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}
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func TestRestart(t *testing.T) {
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runtime, err := newTestRuntime()
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if err != nil {
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t.Fatal(err)
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}
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defer nuke(runtime)
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container, err := runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"echo", "-n", "foobar"},
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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output, err := container.Output()
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if err != nil {
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t.Fatal(err)
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}
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if string(output) != "foobar" {
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t.Error(string(output))
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}
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// Run the container again and check the output
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output, err = container.Output()
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if err != nil {
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t.Fatal(err)
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}
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if string(output) != "foobar" {
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t.Error(string(output))
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}
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}
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func TestRestartStdin(t *testing.T) {
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runtime, err := newTestRuntime()
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if err != nil {
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t.Fatal(err)
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}
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defer nuke(runtime)
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container, err := runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"cat"},
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OpenStdin: true,
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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stdin, err := container.StdinPipe()
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stdout, err := container.StdoutPipe()
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if err := container.Start(); err != nil {
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t.Fatal(err)
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}
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io.WriteString(stdin, "hello world")
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stdin.Close()
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container.Wait()
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output, err := ioutil.ReadAll(stdout)
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stdout.Close()
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if string(output) != "hello world" {
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t.Fatal(string(output))
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}
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// Restart and try again
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stdin, err = container.StdinPipe()
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stdout, err = container.StdoutPipe()
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if err := container.Start(); err != nil {
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t.Fatal(err)
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}
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io.WriteString(stdin, "hello world #2")
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stdin.Close()
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container.Wait()
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output, err = ioutil.ReadAll(stdout)
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stdout.Close()
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if string(output) != "hello world #2" {
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t.Fatal(string(output))
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}
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}
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func TestUser(t *testing.T) {
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runtime, err := newTestRuntime()
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if err != nil {
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t.Fatal(err)
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}
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defer nuke(runtime)
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// Default user must be root
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container, err := runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"id"},
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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output, err := container.Output()
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if err != nil {
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t.Fatal(err)
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}
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if !strings.Contains(string(output), "uid=0(root) gid=0(root)") {
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t.Error(string(output))
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}
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// Set a username
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container, err = runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"id"},
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User: "root",
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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output, err = container.Output()
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if err != nil || container.State.ExitCode != 0 {
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t.Fatal(err)
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}
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if !strings.Contains(string(output), "uid=0(root) gid=0(root)") {
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t.Error(string(output))
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}
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// Set a UID
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container, err = runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"id"},
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User: "0",
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},
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)
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if err != nil || container.State.ExitCode != 0 {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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output, err = container.Output()
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if err != nil || container.State.ExitCode != 0 {
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t.Fatal(err)
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}
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if !strings.Contains(string(output), "uid=0(root) gid=0(root)") {
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t.Error(string(output))
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}
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// Set a different user by uid
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container, err = runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"id"},
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User: "1",
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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output, err = container.Output()
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if err != nil {
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t.Fatal(err)
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} else if container.State.ExitCode != 0 {
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t.Fatalf("Container exit code is invalid: %d\nOutput:\n%s\n", container.State.ExitCode, output)
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}
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if !strings.Contains(string(output), "uid=1(daemon) gid=1(daemon)") {
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t.Error(string(output))
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}
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// Set a different user by username
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container, err = runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"id"},
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User: "daemon",
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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output, err = container.Output()
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if err != nil || container.State.ExitCode != 0 {
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t.Fatal(err)
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}
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if !strings.Contains(string(output), "uid=1(daemon) gid=1(daemon)") {
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t.Error(string(output))
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}
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}
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func TestMultipleContainers(t *testing.T) {
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runtime, err := newTestRuntime()
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if err != nil {
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t.Fatal(err)
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}
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defer nuke(runtime)
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container1, err := runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"cat", "/dev/zero"},
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container1)
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container2, err := runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"cat", "/dev/zero"},
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container2)
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// Start both containers
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if err := container1.Start(); err != nil {
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t.Fatal(err)
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}
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if err := container2.Start(); err != nil {
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t.Fatal(err)
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}
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// If we are here, both containers should be running
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if !container1.State.Running {
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t.Fatal("Container not running")
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}
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if !container2.State.Running {
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t.Fatal("Container not running")
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}
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// Kill them
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if err := container1.Kill(); err != nil {
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t.Fatal(err)
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}
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if err := container2.Kill(); err != nil {
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t.Fatal(err)
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}
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}
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func TestStdin(t *testing.T) {
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runtime, err := newTestRuntime()
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if err != nil {
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t.Fatal(err)
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}
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defer nuke(runtime)
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container, err := runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"cat"},
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OpenStdin: true,
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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stdin, err := container.StdinPipe()
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stdout, err := container.StdoutPipe()
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defer stdin.Close()
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defer stdout.Close()
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if err := container.Start(); err != nil {
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t.Fatal(err)
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}
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io.WriteString(stdin, "hello world")
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stdin.Close()
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container.Wait()
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output, err := ioutil.ReadAll(stdout)
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if string(output) != "hello world" {
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t.Fatal(string(output))
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}
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}
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func TestTty(t *testing.T) {
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runtime, err := newTestRuntime()
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if err != nil {
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t.Fatal(err)
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}
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defer nuke(runtime)
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container, err := runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"cat"},
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OpenStdin: true,
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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stdin, err := container.StdinPipe()
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stdout, err := container.StdoutPipe()
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defer stdin.Close()
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defer stdout.Close()
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if err := container.Start(); err != nil {
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t.Fatal(err)
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}
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io.WriteString(stdin, "hello world")
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stdin.Close()
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container.Wait()
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output, err := ioutil.ReadAll(stdout)
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if string(output) != "hello world" {
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t.Fatal(string(output))
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}
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}
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|
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func TestEnv(t *testing.T) {
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runtime, err := newTestRuntime()
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if err != nil {
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t.Fatal(err)
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}
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defer nuke(runtime)
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container, err := runtime.Create(GetTestImage(runtime).Id, &Config{
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Cmd: []string{"/usr/bin/env"},
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer runtime.Destroy(container)
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stdout, err := container.StdoutPipe()
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if err != nil {
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t.Fatal(err)
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}
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defer stdout.Close()
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if err := container.Start(); err != nil {
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t.Fatal(err)
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}
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container.Wait()
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output, err := ioutil.ReadAll(stdout)
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if err != nil {
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t.Fatal(err)
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}
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actualEnv := strings.Split(string(output), "\n")
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if actualEnv[len(actualEnv)-1] == "" {
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actualEnv = actualEnv[:len(actualEnv)-1]
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}
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sort.Strings(actualEnv)
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goodEnv := []string{
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"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
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"HOME=/",
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}
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sort.Strings(goodEnv)
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if len(goodEnv) != len(actualEnv) {
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t.Fatalf("Wrong environment: should be %d variables, not: '%s'\n", len(goodEnv), strings.Join(actualEnv, ", "))
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}
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for i := range goodEnv {
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if actualEnv[i] != goodEnv[i] {
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t.Fatalf("Wrong environment variable: should be %s, not %s", goodEnv[i], actualEnv[i])
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}
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}
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}
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func grepFile(t *testing.T, path string, pattern string) {
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f, err := os.Open(path)
|
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if err != nil {
|
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t.Fatal(err)
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}
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defer f.Close()
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r := bufio.NewReader(f)
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var (
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line string
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)
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err = nil
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for err == nil {
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line, err = r.ReadString('\n')
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if strings.Contains(line, pattern) == true {
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return
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}
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}
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t.Fatalf("grepFile: pattern \"%s\" not found in \"%s\"", pattern, path)
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}
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func TestLXCConfig(t *testing.T) {
|
|
runtime, err := newTestRuntime()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer nuke(runtime)
|
|
// Memory is allocated randomly for testing
|
|
rand.Seed(time.Now().UTC().UnixNano())
|
|
memMin := 33554432
|
|
memMax := 536870912
|
|
mem := memMin + rand.Intn(memMax-memMin)
|
|
container, err := runtime.Create(GetTestImage(runtime).Id, &Config{
|
|
Cmd: []string{"/bin/true"},
|
|
|
|
Hostname: "foobar",
|
|
Memory: int64(mem),
|
|
},
|
|
)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer runtime.Destroy(container)
|
|
container.generateLXCConfig()
|
|
grepFile(t, container.lxcConfigPath(), "lxc.utsname = foobar")
|
|
grepFile(t, container.lxcConfigPath(),
|
|
fmt.Sprintf("lxc.cgroup.memory.limit_in_bytes = %d", mem))
|
|
grepFile(t, container.lxcConfigPath(),
|
|
fmt.Sprintf("lxc.cgroup.memory.memsw.limit_in_bytes = %d", mem*2))
|
|
}
|
|
|
|
func BenchmarkRunSequencial(b *testing.B) {
|
|
runtime, err := newTestRuntime()
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
defer nuke(runtime)
|
|
for i := 0; i < b.N; i++ {
|
|
container, err := runtime.Create(GetTestImage(runtime).Id, &Config{
|
|
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("Unexecpted output: %v", string(output))
|
|
}
|
|
if err := runtime.Destroy(container); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func BenchmarkRunParallel(b *testing.B) {
|
|
runtime, err := newTestRuntime()
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
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(GetTestImage(runtime).Id, &Config{
|
|
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)
|
|
}
|
|
}
|