package main import ( "fmt" "syscall" "github.com/containers/libpod/cmd/podman/cliconfig" "github.com/containers/libpod/cmd/podman/libpodruntime" "github.com/containers/libpod/cmd/podman/shared" "github.com/containers/libpod/libpod" "github.com/containers/libpod/pkg/rootless" "github.com/docker/docker/pkg/signal" "github.com/pkg/errors" "github.com/sirupsen/logrus" "github.com/spf13/cobra" ) var ( killCommand cliconfig.KillValues killDescription = "The main process inside each container specified will be sent SIGKILL, or any signal specified with option --signal." _killCommand = &cobra.Command{ Use: "kill", Short: "Kill one or more running containers with a specific signal", Long: killDescription, RunE: func(cmd *cobra.Command, args []string) error { killCommand.InputArgs = args killCommand.GlobalFlags = MainGlobalOpts return killCmd(&killCommand) }, Example: "CONTAINER-NAME [CONTAINER-NAME ...]", } ) func init() { killCommand.Command = _killCommand flags := killCommand.Flags() flags.BoolVarP(&killCommand.All, "all", "a", false, "Signal all running containers") flags.StringVarP(&killCommand.Signal, "signal", "s", "KILL", "Signal to send to the container") flags.BoolVarP(&killCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of") rootCmd.AddCommand(killCommand.Command) } // killCmd kills one or more containers with a signal func killCmd(c *cliconfig.KillValues) error { var ( killFuncs []shared.ParallelWorkerInput killSignal uint = uint(syscall.SIGTERM) ) if err := checkAllAndLatest(&c.PodmanCommand); err != nil { return err } rootless.SetSkipStorageSetup(true) runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand) if err != nil { return errors.Wrapf(err, "could not get runtime") } defer runtime.Shutdown(false) if c.Signal != "" { // Check if the signalString provided by the user is valid // Invalid signals will return err sysSignal, err := signal.ParseSignal(c.Signal) if err != nil { return err } killSignal = uint(sysSignal) } containers, err := getAllOrLatestContainers(&c.PodmanCommand, runtime, libpod.ContainerStateRunning, "running") if err != nil { if len(containers) == 0 { return err } fmt.Println(err.Error()) } for _, ctr := range containers { con := ctr f := func() error { return con.Kill(killSignal) } killFuncs = append(killFuncs, shared.ParallelWorkerInput{ ContainerID: con.ID(), ParallelFunc: f, }) } maxWorkers := shared.Parallelize("kill") if c.GlobalIsSet("max-workers") { maxWorkers = c.GlobalFlags.MaxWorks } logrus.Debugf("Setting maximum workers to %d", maxWorkers) killErrors, errCount := shared.ParallelExecuteWorkerPool(maxWorkers, killFuncs) return printParallelOutput(killErrors, errCount) }