feat: replace github.com/pkg/errors to errors

Signed-off-by: haoyun <yun.hao@daocloud.io>
Co-authored-by: zounengren <zouyee1989@gmail.com>

runtime/v1/linux/task.go

@@ -21,6 +21,8 @@ package linux
 
 import (
 	"context"
+	"errors"
+	"fmt"
 	"sync"
 
 	"github.com/containerd/cgroups"
@@ -36,7 +38,6 @@ import (
 	"github.com/containerd/ttrpc"
 	"github.com/containerd/typeurl"
 	"github.com/gogo/protobuf/types"
-	"github.com/pkg/errors"
 )
 
 // Task on a linux based system
@@ -229,7 +230,7 @@ func (t *Task) Kill(ctx context.Context, signal uint32, all bool) error {
 // Exec creates a new process inside the task
 func (t *Task) Exec(ctx context.Context, id string, opts runtime.ExecOpts) (runtime.ExecProcess, error) {
 	if err := identifiers.Validate(id); err != nil {
-		return nil, errors.Wrapf(err, "invalid exec id")
+		return nil, fmt.Errorf("invalid exec id: %w", err)
 	}
 	request := &shim.ExecProcessRequest{
 		ID:       id,
@@ -333,7 +334,7 @@ func (t *Task) Stats(ctx context.Context) (*types.Any, error) {
 	t.mu.Lock()
 	defer t.mu.Unlock()
 	if t.cg == nil {
-		return nil, errors.Wrap(errdefs.ErrNotFound, "cgroup does not exist")
+		return nil, fmt.Errorf("cgroup does not exist: %w", errdefs.ErrNotFound)
 	}
 	stats, err := t.cg.Stat(cgroups.IgnoreNotExist)
 	if err != nil {
@@ -347,7 +348,7 @@ func (t *Task) Cgroup() (cgroups.Cgroup, error) {
 	t.mu.Lock()
 	defer t.mu.Unlock()
 	if t.cg == nil {
-		return nil, errors.Wrap(errdefs.ErrNotFound, "cgroup does not exist")
+		return nil, fmt.Errorf("cgroup does not exist: %w", errdefs.ErrNotFound)
 	}
 	return t.cg, nil
 }