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Merge pull request #997 from verult/flexdeploy 

Automatic merge from submit-queue

Flexvolume Dynamic Plugin Discovery: Added comments about possible driver installation actions

Made it explicit that driver uninstalls are allowed, and cautioned against uninstalling while a volume depends on the driver.

/sig storage
/assign @chakri-nelluri @saad-ali
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Kubernetes Submit Queue 2017-09-01 15:54:11 -07:00 committed by GitHub
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contributors/design-proposals/flexvolume-deployment.md
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@ -19,6 +19,7 @@ An automated deployment technique is discussed in [Recommended Driver Deployment
When there is a modification of the driver directory, a notification is sent to the filesystem watch from kubelet or controller manager. When kubelet or controller-manager searches for plugins (such as when a volume needs to be mounted), if there is a signal from the watch, it probes the driver directory and loads currently installed drivers as volume plugins.
The modification can be a driver install (addition), upgrade/downgrade (update), or uninstall (deletion). If a volume depends on an existing driver, it can be *updated* but not *deleted*.
## **Detailed Design**