7b062cf4c1
Kill one or more containers using a user-provided signal. If not signal is provided, KILL is used. Signed-off-by: baude <bbaude@redhat.com>
71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
package main
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import (
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"fmt"
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"os"
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"github.com/docker/docker/pkg/signal"
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"github.com/kubernetes-incubator/cri-o/libkpod"
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"github.com/pkg/errors"
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"github.com/urfave/cli"
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)
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var (
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killFlags = []cli.Flag{
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cli.StringFlag{
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Name: "signal, s",
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Usage: "Signal to send to the container",
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Value: "KILL",
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},
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}
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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 = cli.Command{
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Name: "kill",
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Usage: "Kill one or more running containers with a specific signal",
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Description: killDescription,
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Flags: killFlags,
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Action: killCmd,
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ArgsUsage: "[CONTAINER_NAME_OR_ID]",
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}
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)
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// killCmd kills one or more containers with a signal
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func killCmd(c *cli.Context) error {
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args := c.Args()
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if len(args) == 0 {
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return errors.Errorf("specify one or more containers to kill")
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}
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config, err := getConfig(c)
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if err != nil {
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return errors.Wrapf(err, "could not get config")
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}
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server, err := libkpod.New(config)
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if err != nil {
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return errors.Wrapf(err, "could not get container server")
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}
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killSignal := c.String("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(killSignal)
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if err != nil {
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return err
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}
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defer server.Shutdown()
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err = server.Update()
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if err != nil {
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return errors.Wrapf(err, "could not update list of containers")
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}
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var lastError error
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for _, container := range c.Args() {
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id, err := server.ContainerKill(container, sysSignal)
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if err != nil {
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if lastError != nil {
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fmt.Fprintln(os.Stderr, lastError)
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}
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lastError = errors.Wrapf(err, "unable to kill %v", container)
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} else {
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fmt.Println(id)
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}
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}
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return lastError
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}
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