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package main
import (
"context"
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/cmd/podman/shared"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/pkg/adapter"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
)
var (
pruneContainersCommand cliconfig.PruneContainersValues
pruneContainersDescription = `
podman container prune
Removes all exited containers
`
_pruneContainersCommand = &cobra.Command{
Use: "prune",
Args: noSubArgs,
Short: "Remove all stopped containers",
Long: pruneContainersDescription,
RunE: func(cmd *cobra.Command, args []string) error {
pruneContainersCommand.InputArgs = args
pruneContainersCommand.GlobalFlags = MainGlobalOpts
return pruneContainersCmd(&pruneContainersCommand)
},
}
)
func init() {
pruneContainersCommand.Command = _pruneContainersCommand
pruneContainersCommand.SetHelpTemplate(HelpTemplate())
pruneContainersCommand.SetUsageTemplate(UsageTemplate())
flags := pruneContainersCommand.Flags()
flags.BoolVarP(&pruneContainersCommand.Force, "force", "f", false, "Force removal of a running container. The default is false")
}
func pruneContainers(runtime *adapter.LocalRuntime, ctx context.Context, maxWorkers int, force, volumes bool) error {
var deleteFuncs []shared.ParallelWorkerInput
filter := func(c *libpod.Container) bool {
state, err := c.State()
if state == libpod.ContainerStateStopped || (state == libpod.ContainerStateExited && err == nil && c.PodID() == "") {
return true
}
return false
}
delContainers, err := runtime.GetContainers(filter)
if err != nil {
return err
}
if len(delContainers) < 1 {
return nil
}
for _, container := range delContainers {
con := container
f := func() error {
return runtime.RemoveContainer(ctx, con, force, volumes)
}
deleteFuncs = append(deleteFuncs, shared.ParallelWorkerInput{
ContainerID: con.ID(),
ParallelFunc: f,
})
}
// Run the parallel funcs
deleteErrors, errCount := shared.ParallelExecuteWorkerPool(maxWorkers, deleteFuncs)
return printParallelOutput(deleteErrors, errCount)
}
func pruneContainersCmd(c *cliconfig.PruneContainersValues) error {
runtime, err := adapter.GetRuntime(&c.PodmanCommand)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.Shutdown(false)
maxWorkers := shared.Parallelize("rm")
if c.GlobalIsSet("max-workers") {
maxWorkers = c.GlobalFlags.MaxWorks
}
logrus.Debugf("Setting maximum workers to %d", maxWorkers)
return pruneContainers(runtime, getContext(), maxWorkers, c.Bool("force"), c.Bool("volumes"))
}
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