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|
package libcontainer
import (
"errors"
"os"
"path/filepath"
"reflect"
"testing"
"github.com/moby/sys/mountinfo"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/opencontainers/runc/libcontainer/utils"
"github.com/opencontainers/runtime-spec/specs-go"
"golang.org/x/sys/unix"
)
func TestFactoryNew(t *testing.T) {
root := t.TempDir()
factory, err := New(root)
if err != nil {
t.Fatal(err)
}
if factory == nil {
t.Fatal("factory should not be nil")
}
lfactory, ok := factory.(*LinuxFactory)
if !ok {
t.Fatal("expected linux factory returned on linux based systems")
}
if lfactory.Root != root {
t.Fatalf("expected factory root to be %q but received %q", root, lfactory.Root)
}
if factory.Type() != "libcontainer" {
t.Fatalf("unexpected factory type: %q, expected %q", factory.Type(), "libcontainer")
}
}
func TestFactoryNewIntelRdt(t *testing.T) {
root := t.TempDir()
factory, err := New(root, IntelRdtFs)
if err != nil {
t.Fatal(err)
}
if factory == nil {
t.Fatal("factory should not be nil")
}
lfactory, ok := factory.(*LinuxFactory)
if !ok {
t.Fatal("expected linux factory returned on linux based systems")
}
if lfactory.Root != root {
t.Fatalf("expected factory root to be %q but received %q", root, lfactory.Root)
}
if factory.Type() != "libcontainer" {
t.Fatalf("unexpected factory type: %q, expected %q", factory.Type(), "libcontainer")
}
}
func TestFactoryNewTmpfs(t *testing.T) {
t.Skip("DM - skipping privileged test")
root := t.TempDir()
factory, err := New(root, TmpfsRoot)
if err != nil {
t.Fatal(err)
}
if factory == nil {
t.Fatal("factory should not be nil")
}
lfactory, ok := factory.(*LinuxFactory)
if !ok {
t.Fatal("expected linux factory returned on linux based systems")
}
if lfactory.Root != root {
t.Fatalf("expected factory root to be %q but received %q", root, lfactory.Root)
}
if factory.Type() != "libcontainer" {
t.Fatalf("unexpected factory type: %q, expected %q", factory.Type(), "libcontainer")
}
mounted, err := mountinfo.Mounted(lfactory.Root)
if err != nil {
t.Fatal(err)
}
if !mounted {
t.Fatalf("Factory Root is not mounted")
}
mounts, err := mountinfo.GetMounts(mountinfo.SingleEntryFilter(lfactory.Root))
if err != nil {
t.Fatal(err)
}
if len(mounts) != 1 {
t.Fatalf("Factory Root is not listed in mounts list")
}
m := mounts[0]
if m.FSType != "tmpfs" {
t.Fatalf("FSType of root: %s, expected %s", m.FSType, "tmpfs")
}
if m.Source != "tmpfs" {
t.Fatalf("Source of root: %s, expected %s", m.Source, "tmpfs")
}
err = unix.Unmount(root, unix.MNT_DETACH)
if err != nil {
t.Error("failed to unmount root:", err)
}
}
func TestFactoryLoadNotExists(t *testing.T) {
factory, err := New(t.TempDir())
if err != nil {
t.Fatal(err)
}
_, err = factory.Load("nocontainer")
if err == nil {
t.Fatal("expected nil error loading non-existing container")
}
if !errors.Is(err, ErrNotExist) {
t.Fatalf("expected ErrNotExist, got %v", err)
}
}
func TestFactoryLoadContainer(t *testing.T) {
t.Skip("DM - skipping privileged test")
root := t.TempDir()
// setup default container config and state for mocking
var (
id = "1"
expectedHooks = configs.Hooks{
configs.Prestart: configs.HookList{
configs.CommandHook{Command: configs.Command{Path: "prestart-hook"}},
},
configs.Poststart: configs.HookList{
configs.CommandHook{Command: configs.Command{Path: "poststart-hook"}},
},
configs.Poststop: configs.HookList{
unserializableHook{},
configs.CommandHook{Command: configs.Command{Path: "poststop-hook"}},
},
}
expectedConfig = &configs.Config{
Rootfs: "/mycontainer/root",
Hooks: expectedHooks,
Cgroups: &configs.Cgroup{
Resources: &configs.Resources{},
},
}
expectedState = &State{
BaseState: BaseState{
InitProcessPid: 1024,
Config: *expectedConfig,
},
}
)
if err := os.Mkdir(filepath.Join(root, id), 0o700); err != nil {
t.Fatal(err)
}
if err := marshal(filepath.Join(root, id, stateFilename), expectedState); err != nil {
t.Fatal(err)
}
factory, err := New(root, IntelRdtFs)
if err != nil {
t.Fatal(err)
}
container, err := factory.Load(id)
if err != nil {
t.Fatal(err)
}
if container.ID() != id {
t.Fatalf("expected container id %q but received %q", id, container.ID())
}
config := container.Config()
if config.Rootfs != expectedConfig.Rootfs {
t.Fatalf("expected rootfs %q but received %q", expectedConfig.Rootfs, config.Rootfs)
}
expectedHooks[configs.Poststop] = expectedHooks[configs.Poststop][1:] // expect unserializable hook to be skipped
if !reflect.DeepEqual(config.Hooks, expectedHooks) {
t.Fatalf("expects hooks %q but received %q", expectedHooks, config.Hooks)
}
lcontainer, ok := container.(*linuxContainer)
if !ok {
t.Fatal("expected linux container on linux based systems")
}
if lcontainer.initProcess.pid() != expectedState.InitProcessPid {
t.Fatalf("expected init pid %d but received %d", expectedState.InitProcessPid, lcontainer.initProcess.pid())
}
}
func marshal(path string, v interface{}) error {
f, err := os.Create(path)
if err != nil {
return err
}
defer f.Close() //nolint: errcheck
return utils.WriteJSON(f, v)
}
type unserializableHook struct{}
func (unserializableHook) Run(*specs.State) error {
return nil
}
|
