DockerCLI/cli/command/container/kill.go

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package container
import (
"context"
"fmt"
"strings"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/command/completion"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
type killOptions struct {
signal string
containers []string
}
// NewKillCommand creates a new cobra.Command for `docker kill`
func NewKillCommand(dockerCli command.Cli) *cobra.Command {
var opts killOptions
cmd := &cobra.Command{
Use: "kill [OPTIONS] CONTAINER [CONTAINER...]",
Short: "Kill one or more running containers",
Args: cli.RequiresMinArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
opts.containers = args
return runKill(dockerCli, &opts)
},
ValidArgsFunction: completion.ContainerNames(dockerCli, false),
}
flags := cmd.Flags()
flags.StringVarP(&opts.signal, "signal", "s", "", "Signal to send to the container")
return cmd
}
func runKill(dockerCli command.Cli, opts *killOptions) error {
var errs []string
ctx := context.Background()
errChan := parallelOperation(ctx, opts.containers, func(ctx context.Context, container string) error {
return dockerCli.Client().ContainerKill(ctx, container, opts.signal)
})
for _, name := range opts.containers {
if err := <-errChan; err != nil {
errs = append(errs, err.Error())
} else {
fmt.Fprintln(dockerCli.Out(), name)
}
}
if len(errs) > 0 {
return errors.New(strings.Join(errs, "\n"))
}
return nil
}