package main import ( "fmt" "os" "syscall" "github.com/docker/docker/pkg/signal" "github.com/pkg/errors" "github.com/urfave/cli" ) var ( killFlags = []cli.Flag{ cli.StringFlag{ Name: "signal, s", Usage: "Signal to send to the container", Value: "KILL", }, } killDescription = "The main process inside each container specified will be sent SIGKILL, or any signal specified with option --signal." killCommand = cli.Command{ Name: "kill", Usage: "Kill one or more running containers with a specific signal", Description: killDescription, Flags: killFlags, Action: killCmd, ArgsUsage: "[CONTAINER_NAME_OR_ID]", } ) // killCmd kills one or more containers with a signal func killCmd(c *cli.Context) error { args := c.Args() if len(args) == 0 { return errors.Errorf("specify one or more containers to kill") } if err := validateFlags(c, killFlags); err != nil { return err } runtime, err := getRuntime(c) if err != nil { return errors.Wrapf(err, "could not get runtime") } defer runtime.Shutdown(false) var killSignal uint = uint(syscall.SIGTERM) if c.String("signal") != "" { // Check if the signalString provided by the user is valid // Invalid signals will return err sysSignal, err := signal.ParseSignal(c.String("signal")) if err != nil { return err } killSignal = uint(sysSignal) } var lastError error for _, container := range c.Args() { ctr, err := runtime.LookupContainer(container) if err != nil { if lastError != nil { fmt.Fprintln(os.Stderr, lastError) } lastError = errors.Wrapf(err, "unable to find container %v", container) continue } if err := ctr.Kill(killSignal); err != nil { if lastError != nil { fmt.Fprintln(os.Stderr, lastError) } lastError = errors.Wrapf(err, "unable to find container %v", container) } else { fmt.Println(ctr.ID()) } } return lastError }