github.com/containerd/Containerd@v1.4.13/runtime/opts/opts_linux.go (about)

     1  /*
     2     Copyright The containerd Authors.
     3  
     4     Licensed under the Apache License, Version 2.0 (the "License");
     5     you may not use this file except in compliance with the License.
     6     You may obtain a copy of the License at
     7  
     8         http://www.apache.org/licenses/LICENSE-2.0
     9  
    10     Unless required by applicable law or agreed to in writing, software
    11     distributed under the License is distributed on an "AS IS" BASIS,
    12     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13     See the License for the specific language governing permissions and
    14     limitations under the License.
    15  */
    16  
    17  package opts
    18  
    19  import (
    20  	"context"
    21  
    22  	"github.com/containerd/cgroups"
    23  	cgroupsv2 "github.com/containerd/cgroups/v2"
    24  	"github.com/containerd/containerd/namespaces"
    25  )
    26  
    27  // WithNamespaceCgroupDeletion removes the cgroup directory that was created for the namespace
    28  func WithNamespaceCgroupDeletion(ctx context.Context, i *namespaces.DeleteInfo) error {
    29  	if cgroups.Mode() == cgroups.Unified {
    30  		cg, err := cgroupsv2.LoadManager("/sys/fs/cgroup", i.Name)
    31  		if err != nil {
    32  			if err == cgroupsv2.ErrCgroupDeleted {
    33  				return nil
    34  			}
    35  			return err
    36  		}
    37  		return cg.Delete()
    38  	}
    39  	cg, err := cgroups.Load(cgroups.V1, cgroups.StaticPath(i.Name))
    40  	if err != nil {
    41  		if err == cgroups.ErrCgroupDeleted {
    42  			return nil
    43  		}
    44  		return err
    45  	}
    46  	return cg.Delete()
    47  }