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package containers
import (
"context"
"errors"
"fmt"
"github.com/containers/libpod/cmd/podman/registry"
"github.com/containers/libpod/cmd/podman/utils"
"github.com/containers/libpod/cmd/podman/validate"
"github.com/containers/libpod/pkg/domain/entities"
"github.com/containers/libpod/pkg/signal"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
var (
killDescription = "The main process inside each container specified will be sent SIGKILL, or any signal specified with option --signal."
killCommand = &cobra.Command{
Use: "kill [flags] CONTAINER [CONTAINER...]",
Short: "Kill one or more running containers with a specific signal",
Long: killDescription,
RunE: kill,
Args: func(cmd *cobra.Command, args []string) error {
return validate.CheckAllLatestAndCIDFile(cmd, args, false, false)
},
Example: `podman kill mywebserver
podman kill 860a4b23
podman kill --signal TERM ctrID`,
}
containerKillCommand = &cobra.Command{
Args: func(cmd *cobra.Command, args []string) error {
return validate.CheckAllLatestAndCIDFile(cmd, args, false, false)
},
Use: killCommand.Use,
Short: killCommand.Short,
Long: killCommand.Long,
RunE: killCommand.RunE,
Example: `podman container kill mywebserver
podman container kill 860a4b23
podman container kill --signal TERM ctrID`,
}
)
var (
killOptions = entities.KillOptions{}
)
func killFlags(flags *pflag.FlagSet) {
flags.BoolVarP(&killOptions.All, "all", "a", false, "Signal all running containers")
flags.StringVarP(&killOptions.Signal, "signal", "s", "KILL", "Signal to send to the container")
}
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: killCommand,
})
killFlags(killCommand.Flags())
validate.AddLatestFlag(killCommand, &killOptions.Latest)
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: containerKillCommand,
Parent: containerCmd,
})
killFlags(containerKillCommand.Flags())
validate.AddLatestFlag(containerKillCommand, &killOptions.Latest)
}
func kill(_ *cobra.Command, args []string) error {
var (
err error
errs utils.OutputErrors
)
// Check if the signalString provided by the user is valid
// Invalid signals will return err
sig, err := signal.ParseSignalNameOrNumber(killOptions.Signal)
if err != nil {
return err
}
if sig < 1 || sig > 64 {
return errors.New("valid signals are 1 through 64")
}
responses, err := registry.ContainerEngine().ContainerKill(context.Background(), args, killOptions)
if err != nil {
return err
}
for _, r := range responses {
if r.Err == nil {
fmt.Println(r.Id)
} else {
errs = append(errs, r.Err)
}
}
return errs.PrintErrors()
}
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