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package main
import (
"fmt"
"syscall"
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/pkg/adapter"
"github.com/docker/docker/pkg/signal"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
)
var (
podKillCommand cliconfig.PodKillValues
podKillDescription = `Signals are sent to the main process of each container inside the specified pod.
The default signal is SIGKILL, or any signal specified with option --signal.`
_podKillCommand = &cobra.Command{
Use: "kill [flags] POD [POD...]",
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
podKillCommand.Remote = remoteclient
return podKillCmd(&podKillCommand)
},
Args: func(cmd *cobra.Command, args []string) error {
return checkAllLatestAndCIDFile(cmd, args, false, false)
},
Example: `podman pod kill podID
podman pod kill --signal TERM mywebserver
podman pod kill --latest`,
}
)
func init() {
podKillCommand.Command = _podKillCommand
podKillCommand.SetHelpTemplate(HelpTemplate())
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")
markFlagHiddenForRemoteClient("latest", flags)
}
// podKillCmd kills one or more pods with a signal
func podKillCmd(c *cliconfig.PodKillValues) error {
runtime, err := adapter.GetRuntime(getContext(), &c.PodmanCommand)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.DeferredShutdown(false)
killSignal := 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)
}
podKillIds, podKillErrors := runtime.KillPods(getContext(), c, killSignal)
for _, p := range podKillIds {
fmt.Println(p)
}
if len(podKillErrors) == 0 {
return nil
}
// Grab the last error
lastError := podKillErrors[len(podKillErrors)-1]
// Remove the last error from the error slice
podKillErrors = podKillErrors[:len(podKillErrors)-1]
for _, err := range podKillErrors {
logrus.Errorf("%q", err)
}
return lastError
}
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