43fb19e01c
This adds both container and task loading of running tasks as well as reattaching to the IO of the task after load. Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
580 lines
11 KiB
Go
580 lines
11 KiB
Go
package containerd
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"os"
|
|
"sync"
|
|
"syscall"
|
|
"testing"
|
|
)
|
|
|
|
func empty() IOCreation {
|
|
null := ioutil.Discard
|
|
return NewIO(bytes.NewBuffer(nil), null, null)
|
|
}
|
|
|
|
func TestContainerList(t *testing.T) {
|
|
if testing.Short() {
|
|
t.Skip()
|
|
}
|
|
client, err := New(address)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer client.Close()
|
|
|
|
containers, err := client.Containers(context.Background())
|
|
if err != nil {
|
|
t.Errorf("container list returned error %v", err)
|
|
return
|
|
}
|
|
if len(containers) != 0 {
|
|
t.Errorf("expected 0 containers but received %d", len(containers))
|
|
}
|
|
}
|
|
|
|
func TestNewContainer(t *testing.T) {
|
|
if testing.Short() {
|
|
t.Skip()
|
|
}
|
|
id := "NewContainer"
|
|
client, err := New(address)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer client.Close()
|
|
|
|
spec, err := GenerateSpec()
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
container, err := client.NewContainer(context.Background(), id, spec)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer container.Delete(context.Background())
|
|
if container.ID() != id {
|
|
t.Errorf("expected container id %q but received %q", id, container.ID())
|
|
}
|
|
if spec, err = container.Spec(); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
if err := container.Delete(context.Background()); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
}
|
|
|
|
func TestContainerStart(t *testing.T) {
|
|
if testing.Short() {
|
|
t.Skip()
|
|
}
|
|
client, err := New(address)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer client.Close()
|
|
|
|
var (
|
|
ctx = context.Background()
|
|
id = "ContainerStart"
|
|
)
|
|
image, err := client.GetImage(ctx, testImage)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
spec, err := GenerateSpec(WithImageConfig(ctx, image), WithProcessArgs("sh", "-c", "exit 7"))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
container, err := client.NewContainer(ctx, id, spec, WithImage(image), WithNewRootFS(id, image))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer container.Delete(ctx)
|
|
|
|
task, err := container.NewTask(ctx, Stdio)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer task.Delete(ctx)
|
|
|
|
statusC := make(chan uint32, 1)
|
|
go func() {
|
|
status, err := task.Wait(ctx)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
statusC <- status
|
|
}()
|
|
|
|
if pid := task.Pid(); pid <= 0 {
|
|
t.Errorf("invalid task pid %d", pid)
|
|
}
|
|
if err := task.Start(ctx); err != nil {
|
|
t.Error(err)
|
|
task.Delete(ctx)
|
|
return
|
|
}
|
|
status := <-statusC
|
|
if status != 7 {
|
|
t.Errorf("expected status 7 from wait but received %d", status)
|
|
}
|
|
if status, err = task.Delete(ctx); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
if status != 7 {
|
|
t.Errorf("expected status 7 from delete but received %d", status)
|
|
}
|
|
}
|
|
|
|
func TestContainerOutput(t *testing.T) {
|
|
if testing.Short() {
|
|
t.Skip()
|
|
}
|
|
client, err := New(address)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer client.Close()
|
|
|
|
var (
|
|
ctx = context.Background()
|
|
id = "ContainerOutput"
|
|
expected = "kingkoye"
|
|
)
|
|
image, err := client.GetImage(ctx, testImage)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
spec, err := GenerateSpec(WithImageConfig(ctx, image), WithProcessArgs("echo", expected))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
container, err := client.NewContainer(ctx, id, spec, WithImage(image), WithNewRootFS(id, image))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer container.Delete(ctx)
|
|
|
|
stdout := bytes.NewBuffer(nil)
|
|
task, err := container.NewTask(ctx, NewIO(bytes.NewBuffer(nil), stdout, bytes.NewBuffer(nil)))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer task.Delete(ctx)
|
|
|
|
statusC := make(chan uint32, 1)
|
|
go func() {
|
|
status, err := task.Wait(ctx)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
statusC <- status
|
|
}()
|
|
|
|
if err := task.Start(ctx); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
|
|
status := <-statusC
|
|
if status != 0 {
|
|
t.Errorf("expected status 0 but received %d", status)
|
|
}
|
|
if _, err := task.Delete(ctx); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
|
|
actual := stdout.String()
|
|
// echo adds a new line
|
|
expected = expected + "\n"
|
|
if actual != expected {
|
|
t.Errorf("expected output %q but received %q", expected, actual)
|
|
}
|
|
}
|
|
|
|
func TestContainerExec(t *testing.T) {
|
|
if testing.Short() {
|
|
t.Skip()
|
|
}
|
|
client, err := New(address)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer client.Close()
|
|
|
|
var (
|
|
ctx = context.Background()
|
|
id = "ContainerExec"
|
|
)
|
|
image, err := client.GetImage(ctx, testImage)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
spec, err := GenerateSpec(WithImageConfig(ctx, image), WithProcessArgs("sleep", "100"))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
container, err := client.NewContainer(ctx, id, spec, WithImage(image), WithNewRootFS(id, image))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer container.Delete(ctx)
|
|
|
|
task, err := container.NewTask(ctx, empty())
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer task.Delete(ctx)
|
|
|
|
finished := make(chan struct{}, 1)
|
|
go func() {
|
|
if _, err := task.Wait(ctx); err != nil {
|
|
t.Error(err)
|
|
}
|
|
close(finished)
|
|
}()
|
|
|
|
// start an exec process without running the original container process info
|
|
processSpec := spec.Process
|
|
processSpec.Args = []string{
|
|
"sh", "-c",
|
|
"exit 6",
|
|
}
|
|
|
|
process, err := task.Exec(ctx, &processSpec, empty())
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
processStatusC := make(chan uint32, 1)
|
|
go func() {
|
|
status, err := process.Wait(ctx)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
processStatusC <- status
|
|
}()
|
|
|
|
if err := process.Start(ctx); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
|
|
// wait for the exec to return
|
|
status := <-processStatusC
|
|
|
|
if status != 6 {
|
|
t.Errorf("expected exec exit code 6 but received %d", status)
|
|
}
|
|
if err := task.Kill(ctx, syscall.SIGKILL); err != nil {
|
|
t.Error(err)
|
|
}
|
|
<-finished
|
|
}
|
|
|
|
func TestContainerProcesses(t *testing.T) {
|
|
if testing.Short() {
|
|
t.Skip()
|
|
}
|
|
client, err := New(address)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer client.Close()
|
|
|
|
var (
|
|
ctx = context.Background()
|
|
id = "ContainerProcesses"
|
|
)
|
|
image, err := client.GetImage(ctx, testImage)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
spec, err := GenerateSpec(WithImageConfig(ctx, image), WithProcessArgs("sleep", "100"))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
container, err := client.NewContainer(ctx, id, spec, WithImage(image), WithNewRootFS(id, image))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer container.Delete(ctx)
|
|
|
|
task, err := container.NewTask(ctx, empty())
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer task.Delete(ctx)
|
|
|
|
statusC := make(chan uint32, 1)
|
|
go func() {
|
|
status, err := task.Wait(ctx)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
statusC <- status
|
|
}()
|
|
|
|
pid := task.Pid()
|
|
if pid <= 0 {
|
|
t.Errorf("invalid task pid %d", pid)
|
|
}
|
|
processes, err := task.Processes(ctx)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
if l := len(processes); l != 1 {
|
|
t.Errorf("expected 1 process but received %d", l)
|
|
}
|
|
if len(processes) > 0 {
|
|
actual := processes[0]
|
|
if pid != actual {
|
|
t.Errorf("expected pid %d but received %d", pid, actual)
|
|
}
|
|
}
|
|
if err := task.Kill(ctx, syscall.SIGKILL); err != nil {
|
|
t.Error(err)
|
|
}
|
|
<-statusC
|
|
}
|
|
|
|
func TestContainerCloseStdin(t *testing.T) {
|
|
if testing.Short() {
|
|
t.Skip()
|
|
}
|
|
client, err := New(address)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer client.Close()
|
|
|
|
var (
|
|
ctx = context.Background()
|
|
id = "ContainerCloseStdin"
|
|
)
|
|
image, err := client.GetImage(ctx, testImage)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
spec, err := GenerateSpec(WithImageConfig(ctx, image), WithProcessArgs("cat"))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
container, err := client.NewContainer(ctx, id, spec, WithImage(image), WithNewRootFS(id, image))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer container.Delete(ctx)
|
|
|
|
const expected = "hello\n"
|
|
stdout := bytes.NewBuffer(nil)
|
|
|
|
r, w, err := os.Pipe()
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
|
|
task, err := container.NewTask(ctx, NewIO(r, stdout, ioutil.Discard))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer task.Delete(ctx)
|
|
|
|
statusC := make(chan uint32, 1)
|
|
go func() {
|
|
status, err := task.Wait(ctx)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
statusC <- status
|
|
}()
|
|
|
|
if err := task.Start(ctx); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
|
|
if _, err := fmt.Fprint(w, expected); err != nil {
|
|
t.Error(err)
|
|
}
|
|
w.Close()
|
|
if err := task.CloseStdin(ctx); err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
<-statusC
|
|
|
|
if _, err := task.Delete(ctx); err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
output := stdout.String()
|
|
|
|
if output != expected {
|
|
t.Errorf("expected output %q but received %q", expected, output)
|
|
}
|
|
}
|
|
|
|
func TestContainerAttach(t *testing.T) {
|
|
if testing.Short() {
|
|
t.Skip()
|
|
}
|
|
client, err := New(address)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer client.Close()
|
|
|
|
var (
|
|
ctx = context.Background()
|
|
id = "ContainerAttach"
|
|
)
|
|
image, err := client.GetImage(ctx, testImage)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
spec, err := GenerateSpec(WithImageConfig(ctx, image), WithProcessArgs("cat"))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
container, err := client.NewContainer(ctx, id, spec, WithImage(image), WithNewRootFS(id, image))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer container.Delete(ctx)
|
|
|
|
expected := "hello\n"
|
|
stdout := bytes.NewBuffer(nil)
|
|
|
|
r, w, err := os.Pipe()
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
or, ow, err := os.Pipe()
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
|
|
wg := &sync.WaitGroup{}
|
|
|
|
wg.Add(1)
|
|
go func() {
|
|
io.Copy(stdout, or)
|
|
wg.Done()
|
|
}()
|
|
|
|
// TODO: return fifo information from shim based on task/process
|
|
dir, err := ioutil.TempDir("", "attach")
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
task, err := container.NewTask(ctx, WithIO(r, ow, ioutil.Discard, dir))
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer task.Delete(ctx)
|
|
originalIO := task.IO()
|
|
|
|
statusC := make(chan uint32, 1)
|
|
go func() {
|
|
status, err := task.Wait(ctx)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
statusC <- status
|
|
}()
|
|
|
|
if err := task.Start(ctx); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
|
|
if _, err := fmt.Fprint(w, expected); err != nil {
|
|
t.Error(err)
|
|
}
|
|
w.Close()
|
|
|
|
// load the container and re-load the task
|
|
if container, err = client.LoadContainer(ctx, id); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
|
|
// create new IO for the loaded task
|
|
if r, w, err = os.Pipe(); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
if task, err = container.LoadTask(ctx, WithIO(r, ow, ioutil.Discard, dir)); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
|
|
if _, err := fmt.Fprint(w, expected); err != nil {
|
|
t.Error(err)
|
|
}
|
|
w.Close()
|
|
|
|
if err := task.CloseStdin(ctx); err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
<-statusC
|
|
|
|
originalIO.Close()
|
|
if _, err := task.Delete(ctx); err != nil {
|
|
t.Error(err)
|
|
}
|
|
ow.Close()
|
|
|
|
wg.Wait()
|
|
output := stdout.String()
|
|
|
|
// we wrote the same thing after attach
|
|
expected = expected + expected
|
|
if output != expected {
|
|
t.Errorf("expected output %q but received %q", expected, output)
|
|
}
|
|
}
|