Handle shim delete workdir on Windows

Signed-off-by: Justin Terry (VM) <juterry@microsoft.com>

runtime/v2/binary.go

@@ -21,6 +21,7 @@ import (
 	"context"
 	"io"
 	"os"
+	gruntime "runtime"
 	"strings"
 
 	eventstypes "github.com/containerd/containerd/api/events"
@@ -109,7 +110,23 @@ func (b *binary) Start(ctx context.Context) (_ *shim, err error) {
 
 func (b *binary) Delete(ctx context.Context) (*runtime.Exit, error) {
 	log.G(ctx).Info("cleaning up dead shim")
-	cmd, err := client.Command(ctx, b.runtime, b.containerdAddress, b.bundle.Path, "-id", b.bundle.ID, "delete")
+	var bundlePath string
+	if gruntime.GOOS == "windows" {
+		// Windows cannot delete the current working directory while an
+		// executable is in use with it. For the cleanup case we invoke with the
+		// deafult work dir and forward the bundle path on the cmdline.
+		bundlePath = ""
+	} else {
+		bundlePath = b.bundle.Path
+	}
+
+	cmd, err := client.Command(ctx,
+		b.runtime,
+		b.containerdAddress,
+		bundlePath,
+		"-id", b.bundle.ID,
+		"-bundle", b.bundle.Path,
+		"delete")
 	if err != nil {
 		return nil, err
 	}

runtime/v2/runhcs/service.go

@@ -195,13 +195,22 @@ func (s *service) Cleanup(ctx context.Context) (*taskAPI.DeleteResponse, error)
 	if err != nil {
 		return nil, err
 	}
-	path, err := os.Getwd()
+	// Forcibly shut down any container in this bundle
-	if err != nil {
+	rhcs := newRunhcs("")
-		return nil, err
+	dopts := &runhcs.DeleteOpts{
+		Force: true,
 	}
-	if err := os.RemoveAll(path); err != nil {
+	if err := rhcs.Delete(ctx, s.id, dopts); err != nil {
-		return nil, err
+		log.G(ctx).WithError(err).Debugf("failed to delete container")
 	}
+
+	opts, ok := ctx.Value(shim.OptsKey{}).(shim.Opts)
+	if ok && opts.BundlePath != "" {
+		if err := os.RemoveAll(opts.BundlePath); err != nil {
+			return nil, err
+		}
+	}
+
 	return &taskAPI.DeleteResponse{
 		ExitedAt:   time.Now(),
 		ExitStatus: 255,

runtime/v2/shim/shim.go

@@ -58,7 +58,8 @@ type OptsKey struct{}
 
 // Opts are context options associated with the shim invocation.
 type Opts struct {
-	Debug bool
+	BundlePath string
+	Debug      bool
 }
 
 var (
@@ -66,6 +67,7 @@ var (
 	idFlag               string
 	namespaceFlag        string
 	socketFlag           string
+	bundlePath           string
 	addressFlag          string
 	containerdBinaryFlag string
 	action               string
@@ -76,6 +78,7 @@ func parseFlags() {
 	flag.StringVar(&namespaceFlag, "namespace", "", "namespace that owns the shim")
 	flag.StringVar(&idFlag, "id", "", "id of the task")
 	flag.StringVar(&socketFlag, "socket", "", "abstract socket path to serve")
+	flag.StringVar(&bundlePath, "bundle", "", "path to the bundle if not workdir")
 
 	flag.StringVar(&addressFlag, "address", "", "grpc address back to main containerd")
 	flag.StringVar(&containerdBinaryFlag, "publish-binary", "containerd", "path to publish binary (used for publishing events)")
@@ -141,7 +144,7 @@ func run(id string, initFunc Init) error {
 		return fmt.Errorf("shim namespace cannot be empty")
 	}
 	ctx := namespaces.WithNamespace(context.Background(), namespaceFlag)
-	ctx = context.WithValue(ctx, OptsKey{}, Opts{Debug: debugFlag})
+	ctx = context.WithValue(ctx, OptsKey{}, Opts{BundlePath: bundlePath, Debug: debugFlag})
 	ctx = log.WithLogger(ctx, log.G(ctx).WithField("runtime", id))
 
 	service, err := initFunc(ctx, idFlag, publisher)