DockerCLI/cli/command/container/restart.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/docker/docker/api/types/container"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
type restartOptions struct {
signal string
timeout int
timeoutChanged bool
containers []string
}
// NewRestartCommand creates a new cobra.Command for `docker restart`
func NewRestartCommand(dockerCli command.Cli) *cobra.Command {
var opts restartOptions
cmd := &cobra.Command{
Use: "restart [OPTIONS] CONTAINER [CONTAINER...]",
Short: "Restart one or more containers",
Args: cli.RequiresMinArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
opts.containers = args
opts.timeoutChanged = cmd.Flags().Changed("time")
return runRestart(dockerCli, &opts)
},
Annotations: map[string]string{
"aliases": "docker container restart, docker restart",
},
ValidArgsFunction: completion.ContainerNames(dockerCli, true),
}
flags := cmd.Flags()
flags.StringVarP(&opts.signal, "signal", "s", "", "Signal to send to the container")
flags.IntVarP(&opts.timeout, "time", "t", 0, "Seconds to wait before killing the container")
return cmd
}
func runRestart(dockerCli command.Cli, opts *restartOptions) error {
ctx := context.Background()
var errs []string
var timeout *int
if opts.timeoutChanged {
timeout = &opts.timeout
}
for _, name := range opts.containers {
err := dockerCli.Client().ContainerRestart(ctx, name, container.StopOptions{
Signal: opts.signal,
Timeout: timeout,
})
if err != nil {
errs = append(errs, err.Error())
continue
}
_, _ = fmt.Fprintln(dockerCli.Out(), name)
}
if len(errs) > 0 {
return errors.New(strings.Join(errs, "\n"))
}
return nil
}