package main import ( "fmt" "syscall" "github.com/containers/libpod/cmd/podman/cliconfig" "github.com/containers/libpod/cmd/podman/libpodruntime" "github.com/docker/docker/pkg/signal" "github.com/pkg/errors" "github.com/sirupsen/logrus" "github.com/spf13/cobra" ) var ( podKillCommand cliconfig.PodKillValues podKillDescription = "The main process of each container inside the specified pod will be sent SIGKILL, or any signal specified with option --signal." _podKillCommand = &cobra.Command{ Use: "kill", Short: "Send the specified signal or SIGKILL to containers in pod", Long: podKillDescription, RunE: func(cmd *cobra.Command, args []string) error { podKillCommand.InputArgs = args podKillCommand.GlobalFlags = MainGlobalOpts return podKillCmd(&podKillCommand) }, Example: "[POD_NAME_OR_ID]", } ) func init() { podKillCommand.Command = _podKillCommand podKillCommand.SetUsageTemplate(UsageTemplate()) flags := podKillCommand.Flags() flags.BoolVarP(&podKillCommand.All, "all", "a", false, "Kill all containers in all pods") flags.BoolVarP(&podKillCommand.Latest, "latest", "l", false, "Act on the latest pod podman is aware of") flags.StringVarP(&podKillCommand.Signal, "signal", "s", "KILL", "Signal to send to the containers in the pod") } // podKillCmd kills one or more pods with a signal func podKillCmd(c *cliconfig.PodKillValues) error { if err := checkMutuallyExclusiveFlags(&c.PodmanCommand); err != nil { return err } runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand) if err != nil { return errors.Wrapf(err, "could not get runtime") } defer runtime.Shutdown(false) var killSignal uint = uint(syscall.SIGTERM) 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) } // getPodsFromContext returns an error when a requested pod // isn't found. The only fatal error scenerio is when there are no pods // in which case the following loop will be skipped. pods, lastError := getPodsFromContext(&c.PodmanCommand, runtime) for _, pod := range pods { ctr_errs, err := pod.Kill(killSignal) if ctr_errs != nil { for ctr, err := range ctr_errs { if lastError != nil { logrus.Errorf("%q", lastError) } lastError = errors.Wrapf(err, "unable to kill container %q in pod %q", ctr, pod.ID()) } continue } if err != nil { if lastError != nil { logrus.Errorf("%q", lastError) } lastError = errors.Wrapf(err, "unable to kill pod %q", pod.ID()) continue } fmt.Println(pod.ID()) } return lastError }