// spec represents specification of the desired attach/detach volume behavior.
  // Populated by the Kubernetes system.
  optional VolumeAttachmentSpec spec = 2;

  // status represents status of the VolumeAttachment request.
  // Populated by the entity completing the attach or detach
  // operation, i.e. the external-attacher.
  // +optional

  // spec represents specification of the desired attach/detach volume behavior.
  // Populated by the Kubernetes system.
  optional VolumeAttachmentSpec spec = 2;

  // status represents status of the VolumeAttachment request.
  // Populated by the entity completing the attach or detach
  // operation, i.e. the external-attacher.
  // +optional

  // spec represents specification of the desired attach/detach volume behavior.
  // Populated by the Kubernetes system.
  optional VolumeAttachmentSpec spec = 2;

  // status represents status of the VolumeAttachment request.
  // Populated by the entity completing the attach or detach
  // operation, i.e. the external-attacher.
  // +optional

		return
	}

	// Validate operation
	operation := mux.Vars(r)["operation"]
	if operation != "attach" && operation != "detach" {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminInvalidArgument), r.URL)
		return
	}

	isAttach := operation == "attach"

	// Validate API arguments in body.
	password := cred.SecretKey

    // Create an editor for k1. Detach it by clearing the cache.
    val editor = cache.edit("k1")!!
    editor.setString(0, "a")
    editor.setString(1, "a")
    cache.evictAll()

    // Create a new value in its place.
    set("k1", "bb", "bb")
    assertThat(cache.size()).isEqualTo(4)

    // Committing the detached editor should not change the cache's size.
    editor.commit()

		return nil
	}

	gi := cache.iamGroupsMap[group]

	// Updating the group memberships cache happens in two steps:
	//
	// 1. Remove the group from each user's list of memberships.
	// 2. Add the group to each member's list of memberships.
	//
	// This ensures that regardless of members being added or
	// removed, the cache stays current.
	cache.removeGroupFromMembershipsMap(group)

		return
	}

	operation := mux.Vars(r)["operation"]
	if operation != "attach" && operation != "detach" {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminInvalidArgument), r.URL)
		return
	}
	isAttach := operation == "attach"

	password := cred.SecretKey
	reqBytes, err := madmin.DecryptData(password, io.LimitReader(r.Body, r.ContentLength))

	var isGroup bool
	if r.User != "" {
		dn, err = sys.LDAPConfig.GetValidatedDNForUsername(r.User)
		if err != nil {
			iamLogIf(ctx, err)
			return
		}
		if dn == "" {
			// Still attempt to detach if provided user is a DN.
			if !isAttach && sys.LDAPConfig.IsLDAPUserDN(r.User) {
				dn = r.User
			} else {
				err = errNoSuchUser
				return
			}
		}
		isGroup = false
	} else {

- Added reason to metric `attachdetach_controller_forced_detaches` in the attach detach controller. ([#119185](https://github.com/kubernetes/kubernetes/pull/119185), [@xing-yang](https://github.com/xing-yang))

- Fixed attaching volumes after detach errors. Now volumes that failed to detach are not treated as attached, Kubernetes will make sure they are fully attached before they can be used by pods. ([#120595](https://github.com/kubernetes/kubernetes/pull/120595), [@jsafrane](https://github.com/jsafrane)) [SIG Apps...