42 lines
921 B
Go
42 lines
921 B
Go
package cgroups
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
"strconv"
|
|
|
|
specs "github.com/opencontainers/runtime-spec/specs-go"
|
|
)
|
|
|
|
func NewNetCls(root string) *netclsController {
|
|
return &netclsController{
|
|
root: filepath.Join(root, string(NetCLS)),
|
|
}
|
|
}
|
|
|
|
type netclsController struct {
|
|
root string
|
|
}
|
|
|
|
func (n *netclsController) Name() Name {
|
|
return NetCLS
|
|
}
|
|
|
|
func (n *netclsController) Path(path string) string {
|
|
return filepath.Join(n.root, path)
|
|
}
|
|
|
|
func (n *netclsController) Create(path string, resources *specs.LinuxResources) error {
|
|
if err := os.MkdirAll(n.Path(path), defaultDirPerm); err != nil {
|
|
return err
|
|
}
|
|
if resources.Network != nil && resources.Network.ClassID != nil && *resources.Network.ClassID > 0 {
|
|
return ioutil.WriteFile(
|
|
filepath.Join(n.Path(path), "net_cls.classid"),
|
|
[]byte(strconv.FormatUint(uint64(*resources.Network.ClassID), 10)),
|
|
defaultFilePerm,
|
|
)
|
|
}
|
|
return nil
|
|
}
|