Files
podman/cmd/podman/pause.go
Daniel J Walsh 0830bb9035 Capatilize all usage and descriptions
We have no consistancy in out option usages and descritions
on whether or not the first letter should be capatalized.

This patch forces them all to be capatilized.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
2019-02-05 10:42:04 -08:00

94 lines
2.2 KiB
Go

package main
import (
"os"
"github.com/containers/libpod/cmd/podman/libpodruntime"
"github.com/containers/libpod/cmd/podman/shared"
"github.com/containers/libpod/libpod"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/urfave/cli"
)
var (
pauseFlags = []cli.Flag{
cli.BoolFlag{
Name: "all, a",
Usage: "Pause all running containers",
},
}
pauseDescription = `
podman pause
Pauses one or more running containers. The container name or ID can be used.
`
pauseCommand = cli.Command{
Name: "pause",
Usage: "Pause all the processes in one or more containers",
Description: pauseDescription,
Flags: pauseFlags,
Action: pauseCmd,
ArgsUsage: "CONTAINER-NAME [CONTAINER-NAME ...]",
OnUsageError: usageErrorHandler,
}
)
func pauseCmd(c *cli.Context) error {
var (
pauseContainers []*libpod.Container
pauseFuncs []shared.ParallelWorkerInput
)
if os.Geteuid() != 0 {
return errors.New("pause is not supported for rootless containers")
}
runtime, err := libpodruntime.GetRuntime(c)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.Shutdown(false)
args := c.Args()
if len(args) < 1 && !c.Bool("all") {
return errors.Errorf("you must provide at least one container name or id")
}
if c.Bool("all") {
containers, err := getAllOrLatestContainers(c, runtime, libpod.ContainerStateRunning, "running")
if err != nil {
return err
}
pauseContainers = append(pauseContainers, containers...)
} else {
for _, arg := range args {
ctr, err := runtime.LookupContainer(arg)
if err != nil {
return err
}
pauseContainers = append(pauseContainers, ctr)
}
}
// Now assemble the slice of pauseFuncs
for _, ctr := range pauseContainers {
con := ctr
f := func() error {
return con.Pause()
}
pauseFuncs = append(pauseFuncs, shared.ParallelWorkerInput{
ContainerID: con.ID(),
ParallelFunc: f,
})
}
maxWorkers := shared.Parallelize("pause")
if c.GlobalIsSet("max-workers") {
maxWorkers = c.GlobalInt("max-workers")
}
logrus.Debugf("Setting maximum workers to %d", maxWorkers)
pauseErrors, errCount := shared.ParallelExecuteWorkerPool(maxWorkers, pauseFuncs)
return printParallelOutput(pauseErrors, errCount)
}