open-nomad/client/driver/docker_linux_test.go

100 lines
2.7 KiB
Go

package driver
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"testing"
"time"
"github.com/hashicorp/nomad/client/testutil"
tu "github.com/hashicorp/nomad/testutil"
"github.com/stretchr/testify/require"
)
func TestDockerDriver_authFromHelper(t *testing.T) {
dir, err := ioutil.TempDir("", "test-docker-driver_authfromhelper")
require.NoError(t, err)
defer os.RemoveAll(dir)
helperPayload := "{\"Username\":\"hashi\",\"Secret\":\"nomad\"}"
helperContent := []byte(fmt.Sprintf("#!/bin/sh\ncat > %s/helper-$1.out;echo '%s'", dir, helperPayload))
helperFile := filepath.Join(dir, "docker-credential-testnomad")
err = ioutil.WriteFile(helperFile, helperContent, 0777)
require.NoError(t, err)
path := os.Getenv("PATH")
os.Setenv("PATH", fmt.Sprintf("%s:%s", path, dir))
defer os.Setenv("PATH", path)
helper := authFromHelper("testnomad")
creds, err := helper("registry.local:5000/repo/image")
require.NoError(t, err)
require.NotNil(t, creds)
require.Equal(t, "hashi", creds.Username)
require.Equal(t, "nomad", creds.Password)
if _, err := os.Stat(filepath.Join(dir, "helper-get.out")); os.IsNotExist(err) {
t.Fatalf("Expected helper-get.out to exist")
}
content, err := ioutil.ReadFile(filepath.Join(dir, "helper-get.out"))
require.NoError(t, err)
require.Equal(t, []byte("https://registry.local:5000"), content)
}
func TestDockerDriver_PidsLimit(t *testing.T) {
if !tu.IsTravis() {
t.Parallel()
}
if !testutil.DockerIsConnected(t) {
t.Skip("Docker not connected")
}
task, _, _ := dockerTask(t)
task.Config["pids_limit"] = "1"
task.Config["command"] = "/bin/sh"
task.Config["args"] = []string{"-c", "sleep 2 & sleep 2"}
ctx := testDockerDriverContexts(t, task)
defer ctx.Destroy()
d := NewDockerDriver(ctx.DriverCtx)
// Copy the image into the task's directory
copyImage(t, ctx.ExecCtx.TaskDir, "busybox.tar")
_, err := d.Prestart(ctx.ExecCtx, task)
if err != nil {
t.Fatalf("error in prestart: %v", err)
}
resp, err := d.Start(ctx.ExecCtx, task)
if err != nil {
t.Fatalf("err: %v", err)
}
defer resp.Handle.Kill()
select {
case res := <-resp.Handle.WaitCh():
if res.Successful() {
t.Fatalf("expected error, but container exited successful")
}
case <-time.After(time.Duration(tu.TestMultiplier()*5) * time.Second):
t.Fatalf("timeout")
}
// XXX Logging doesn't work on OSX so just test on Linux
// Check that data was written to the directory.
outputFile := filepath.Join(ctx.ExecCtx.TaskDir.LogDir, "redis-demo.stderr.0")
act, err := ioutil.ReadFile(outputFile)
if err != nil {
t.Fatalf("Couldn't read expected output: %v", err)
}
exp := "can't fork"
if !strings.Contains(string(act), exp) {
t.Fatalf("Expected failed fork: %q", act)
}
}