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moby--moby/daemon/start_linux.go

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package daemon
import (
"fmt"
"github.com/docker/docker/container"
"github.com/docker/docker/libcontainerd"
)
func (daemon *Daemon) getLibcontainerdCreateOptions(container *container.Container) (*[]libcontainerd.CreateOption, error) {
createOptions := []libcontainerd.CreateOption{}
// Ensure a runtime has been assigned to this container
if container.HostConfig.Runtime == "" {
container.HostConfig.Runtime = stockRuntimeName
container.ToDisk()
}
rt := daemon.configStore.GetRuntime(container.HostConfig.Runtime)
if rt == nil {
return nil, fmt.Errorf("no such runtime '%s'", container.HostConfig.Runtime)
}
if UsingSystemd(daemon.configStore) {
rt.Args = append(rt.Args, "--systemd-cgroup=true")
}
createOptions = append(createOptions, libcontainerd.WithRuntime(rt.Path, rt.Args))
return &createOptions, nil
}