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