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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 (
unpauseFlags = []cli.Flag{
cli.BoolFlag{
Name: "all, a",
Usage: "Unpause all paused containers",
},
}
unpauseDescription = `
podman unpause
Unpauses one or more running containers. The container name or ID can be used.
`
unpauseCommand = cli.Command{
Name: "unpause",
Usage: "Unpause the processes in one or more containers",
Description: unpauseDescription,
Flags: unpauseFlags,
Action: unpauseCmd,
ArgsUsage: "CONTAINER-NAME [CONTAINER-NAME ...]",
OnUsageError: usageErrorHandler,
}
)
func unpauseCmd(c *cli.Context) error {
var (
unpauseContainers []*libpod.Container
unpauseFuncs []shared.ParallelWorkerInput
)
if os.Geteuid() != 0 {
return errors.New("unpause 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") {
cs, err := getAllOrLatestContainers(c, runtime, libpod.ContainerStatePaused, "paused")
if err != nil {
return err
}
unpauseContainers = append(unpauseContainers, cs...)
} else {
for _, arg := range args {
ctr, err := runtime.LookupContainer(arg)
if err != nil {
return err
}
unpauseContainers = append(unpauseContainers, ctr)
}
}
// Assemble the unpause funcs
for _, ctr := range unpauseContainers {
con := ctr
f := func() error {
return con.Unpause()
}
unpauseFuncs = append(unpauseFuncs, shared.ParallelWorkerInput{
ContainerID: con.ID(),
ParallelFunc: f,
})
}
maxWorkers := shared.Parallelize("unpause")
if c.GlobalIsSet("max-workers") {
maxWorkers = c.GlobalInt("max-workers")
}
logrus.Debugf("Setting maximum workers to %d", maxWorkers)
unpauseErrors, errCount := shared.ParallelExecuteWorkerPool(maxWorkers, unpauseFuncs)
return printParallelOutput(unpauseErrors, errCount)
}
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