github.com/containerd/nerdctl@v1.7.7/pkg/composer/kill.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 composer
    18  
    19  import (
    20  	"context"
    21  
    22  	"github.com/containerd/log"
    23  	"golang.org/x/sync/errgroup"
    24  )
    25  
    26  type KillOptions struct {
    27  	Signal string
    28  }
    29  
    30  func (c *Composer) Kill(ctx context.Context, opts KillOptions, services []string) error {
    31  	serviceNames, err := c.ServiceNames(services...)
    32  	if err != nil {
    33  		return err
    34  	}
    35  	containers, err := c.Containers(ctx, serviceNames...)
    36  	if err != nil {
    37  		return err
    38  	}
    39  	eg, ctx := errgroup.WithContext(ctx)
    40  	for _, container := range containers {
    41  		container := container
    42  		eg.Go(func() error {
    43  			args := []string{"kill", "-s", opts.Signal, container.ID()}
    44  			if err := c.runNerdctlCmd(ctx, args...); err != nil {
    45  				log.G(ctx).Warn(err)
    46  				return err
    47  			}
    48  			return nil
    49  		})
    50  	}
    51  	return eg.Wait()
    52  }