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Attach/Detach Controller Kubelet Changes

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This PR contains Kubelet changes to enable attach/detach controller control.
* It introduces a new "enable-controller-attach-detach" kubelet flag to
  enable control by controller. Default enabled.
* It removes all references "SafeToDetach" annoation from controller.
* It adds the new VolumesInUse field to the Node Status API object.
* It modifies the controller to use VolumesInUse instead of SafeToDetach
  annotation to gate detachment.
* There is a bug in node-problem-detector that causes VolumesInUse to
  get reset every 30 seconds. Issue https://github.com/kubernetes/node-problem-detector/issues/9
  opened to fix that.
This commit is contained in:
Saad Ali
2016-05-23 13:37:30 -07:00
committed by saadali
parent 24ddec1cbf
commit 9dbe943491
35 changed files with 2346 additions and 1217 deletions
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4
pkg/api/types.go
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@@ -1983,8 +1983,12 @@ type NodeStatus struct {
NodeInfo NodeSystemInfo `json:"nodeInfo,omitempty"`
// List of container images on this node
Images []ContainerImage `json:"images,omitempty"`
// List of attachable volume devices in use (mounted) by the node.
VolumesInUse []UniqueDeviceName `json:"volumesInUse,omitempty"`
}
type UniqueDeviceName string
// Describe a container image
type ContainerImage struct {
// Names by which this image is known.