mirror of
https://github.com/containers/podman.git
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25a3923b61
We intend to migrate to the cobra cli from urfave/cli because the project is more well maintained. There are also some technical reasons as well which extend into our remote client work. Signed-off-by: baude <bbaude@redhat.com>
103 lines
2.8 KiB
Go
103 lines
2.8 KiB
Go
package main
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import (
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"fmt"
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"syscall"
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"github.com/containers/libpod/cmd/podman/cliconfig"
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"github.com/containers/libpod/cmd/podman/libpodruntime"
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"github.com/containers/libpod/cmd/podman/shared"
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"github.com/containers/libpod/libpod"
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"github.com/containers/libpod/pkg/rootless"
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"github.com/docker/docker/pkg/signal"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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)
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var (
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killCommand cliconfig.KillValues
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killDescription = "The main process inside each container specified will be sent SIGKILL, or any signal specified with option --signal."
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_killCommand = &cobra.Command{
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Use: "kill",
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Short: "Kill one or more running containers with a specific signal",
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Long: killDescription,
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RunE: func(cmd *cobra.Command, args []string) error {
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killCommand.InputArgs = args
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killCommand.GlobalFlags = MainGlobalOpts
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return killCmd(&killCommand)
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},
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Example: "CONTAINER-NAME [CONTAINER-NAME ...]",
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}
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)
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func init() {
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killCommand.Command = _killCommand
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flags := killCommand.Flags()
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flags.BoolVarP(&killCommand.All, "all", "a", false, "Signal all running containers")
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flags.StringVarP(&killCommand.Signal, "signal", "s", "KILL", "Signal to send to the container")
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flags.BoolVarP(&killCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
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rootCmd.AddCommand(killCommand.Command)
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}
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// killCmd kills one or more containers with a signal
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func killCmd(c *cliconfig.KillValues) error {
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var (
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killFuncs []shared.ParallelWorkerInput
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killSignal uint = uint(syscall.SIGTERM)
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)
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if err := checkAllAndLatest(&c.PodmanCommand); err != nil {
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return err
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}
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rootless.SetSkipStorageSetup(true)
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runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand)
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if err != nil {
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return errors.Wrapf(err, "could not get runtime")
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}
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defer runtime.Shutdown(false)
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if c.Signal != "" {
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// Check if the signalString provided by the user is valid
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// Invalid signals will return err
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sysSignal, err := signal.ParseSignal(c.Signal)
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if err != nil {
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return err
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}
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killSignal = uint(sysSignal)
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}
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containers, err := getAllOrLatestContainers(&c.PodmanCommand, runtime, libpod.ContainerStateRunning, "running")
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if err != nil {
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if len(containers) == 0 {
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return err
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}
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fmt.Println(err.Error())
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}
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for _, ctr := range containers {
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con := ctr
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f := func() error {
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return con.Kill(killSignal)
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}
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killFuncs = append(killFuncs, shared.ParallelWorkerInput{
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ContainerID: con.ID(),
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ParallelFunc: f,
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})
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}
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maxWorkers := shared.Parallelize("kill")
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if c.GlobalIsSet("max-workers") {
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maxWorkers = c.GlobalFlags.MaxWorks
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}
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logrus.Debugf("Setting maximum workers to %d", maxWorkers)
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killErrors, errCount := shared.ParallelExecuteWorkerPool(maxWorkers, killFuncs)
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return printParallelOutput(killErrors, errCount)
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}
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