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Add --all flag to podman kill

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Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
This commit is contained in:
Daniel J Walsh
2018-09-29 17:27:58 +02:00
parent 1859e35c76
commit 249a51a2fc
4 changed files with 59 additions and 25 deletions
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68
cmd/podman/kill.go
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@ -6,6 +6,7 @@ import (
"fmt"
"github.com/containers/libpod/cmd/podman/libpodruntime"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/pkg/rootless"
"github.com/docker/docker/pkg/signal"
"github.com/pkg/errors"
@ -14,6 +15,10 @@ import (
var (
killFlags = []cli.Flag{
cli.BoolFlag{
Name: "all, a",
Usage: "Signal all running containers",
},
cli.StringFlag{
Name: "signal, s",
Usage: "Signal to send to the container",
@ -28,7 +33,7 @@ var (
Description: killDescription,
Flags: killFlags,
Action: killCmd,
ArgsUsage: "[CONTAINER_NAME_OR_ID]",
ArgsUsage: "CONTAINER-NAME [CONTAINER-NAME ...]",
UseShortOptionHandling: true,
OnUsageError: usageErrorHandler,
}
@ -37,11 +42,17 @@ var (
// killCmd kills one or more containers with a signal
func killCmd(c *cli.Context) error {
args := c.Args()
if len(args) == 0 && !c.Bool("latest") {
return errors.Errorf("specify one or more containers to kill")
if (!c.Bool("all") && !c.Bool("latest")) && len(args) == 0 {
return errors.Errorf("you must specify one or more containers to kill")
}
if len(args) > 0 && c.Bool("latest") {
return errors.Errorf("you cannot specific any containers to kill with --latest")
if (c.Bool("all") || c.Bool("latest")) && len(args) > 0 {
return errors.Errorf("you cannot specify any containers to kill with --latest or --all")
}
if c.Bool("all") && c.Bool("latest") {
return errors.Errorf("--all and --latest cannot be used together")
}
if len(args) < 1 && !c.Bool("all") && !c.Bool("latest") {
return errors.Errorf("you must provide at least one container name or id")
}
if err := validateFlags(c, killFlags); err != nil {
return err
@ -65,30 +76,45 @@ func killCmd(c *cli.Context) error {
killSignal = uint(sysSignal)
}
if c.Bool("latest") {
latestCtr, err := runtime.GetLatestContainer()
var filterFuncs []libpod.ContainerFilter
var containers []*libpod.Container
var lastError error
if c.Bool("all") {
// only get running containers
filterFuncs = append(filterFuncs, func(c *libpod.Container) bool {
state, _ := c.State()
return state == libpod.ContainerStateRunning
})
containers, err = runtime.GetContainers(filterFuncs...)
if err != nil {
return errors.Wrapf(err, "unable to get latest container")
return errors.Wrapf(err, "unable to get running containers")
}
} else if c.Bool("latest") {
lastCtr, err := runtime.GetLatestContainer()
if err != nil {
return errors.Wrapf(err, "unable to get last created container")
}
containers = append(containers, lastCtr)
} else {
for _, i := range args {
container, err := runtime.LookupContainer(i)
if err != nil {
if lastError != nil {
fmt.Fprintln(os.Stderr, lastError)
}
lastError = errors.Wrapf(err, "unable to find container %s", i)
continue
}
containers = append(containers, container)
}
args = append(args, latestCtr.ID())
}
var lastError error
for _, container := range args {
ctr, err := runtime.LookupContainer(container)
if err != nil {
if lastError != nil {
fmt.Fprintln(os.Stderr, lastError)
}
lastError = errors.Wrapf(err, "unable to find container %v", container)
continue
}
for _, ctr := range containers {
if err := ctr.Kill(killSignal); err != nil {
if lastError != nil {
fmt.Fprintln(os.Stderr, lastError)
}
lastError = errors.Wrapf(err, "unable to find container %v", container)
lastError = errors.Wrapf(err, "unable to find container %v", ctr.ID())
} else {
fmt.Println(ctr.ID())
}