Method initialize

pkg/cgroups/cgroups.go:293–333

initialize initializes the specified hierarchy

()

// initialize initializes the specified hierarchy
func (c *CgroupControl) initialize() (err error) {
	createdSoFar := map[string]controllerHandler{}
	defer func() {
		if err != nil {
			for name, ctr := range createdSoFar {
				if err := ctr.Destroy(c); err != nil {
					logrus.Warningf("error cleaning up controller %s for %s", name, c.path)
				}
			}
		}
	}()
	if c.cgroup2 {
		if err := createCgroupv2Path(filepath.Join(cgroupRoot, c.path)); err != nil {
			return errors.Wrapf(err, "error creating cgroup path %s", c.path)
		}
	}
	for name, handler := range handlers {
		created, err := handler.Create(c)
		if err != nil {
			return err
		}
		if created {
			createdSoFar[name] = handler
		}
	}

	if !c.cgroup2 {
		// We won't need to do this for cgroup v2
		for _, ctr := range c.additionalControllers {
			if ctr.symlink {
				continue
			}
			path := c.getCgroupv1Path(ctr.name)
			if err := os.MkdirAll(path, 0755); err != nil {
				return errors.Wrapf(err, "error creating cgroup path for %s", ctr.name)
			}
		}
	}

	return nil
}

func (c *CgroupControl) createCgroupDirectory(controller string) (bool, error) {
	cPath := c.getCgroupv1Path(controller)