Edited FlexVolume deprecated

Signed-off-by: Ayushman Mishra <[email protected]>

Author: chetak123

content/en/docs/concepts/extend-kubernetes/_index.md

@@ -77,7 +77,7 @@ failure.
 In the webhook model, Kubernetes makes a network request to a remote service.
 In the *Binary Plugin* model, Kubernetes executes a binary (program).
 Binary plugins are used by the kubelet (e.g.
-[Flex Volume Plugins](/docs/concepts/storage/volumes/#flexVolume)
+[Flex Volume Plugins](/docs/concepts/storage/volumes/#flexvolume)
 and [Network Plugins](/docs/concepts/extend-kubernetes/compute-storage-net/network-plugins/))
 and by kubectl.
 
@@ -163,6 +163,8 @@ After a request is authorized, if it is a write operation, it also goes through
 ) allow users to mount volume types without built-in support by having the
 Kubelet call a Binary Plugin to mount the volume.
 
+FlexVolume is deprecated in v1.23. Out-of-tree CSI driver is the recommended way to write volume drivers in Kubernetes. See this doc [here](https://github.com/kubernetes/community/blob/master/sig-storage/volume-plugin-faq.md#kubernetes-volume-plugin-faq-for-storage-vendors) for more information.
+
 
 ### Device Plugins
 

content/en/docs/concepts/storage/persistent-volumes.md

@@ -318,7 +318,8 @@ PersistentVolume types are implemented as plugins. Kubernetes currently supports
 * [`cephfs`](/docs/concepts/storage/volumes/#cephfs) - CephFS volume
 * [`csi`](/docs/concepts/storage/volumes/#csi) - Container Storage Interface (CSI)
 * [`fc`](/docs/concepts/storage/volumes/#fc) - Fibre Channel (FC) storage
-* [`flexVolume`](/docs/concepts/storage/volumes/#flexVolume) - FlexVolume
+* [`flexVolume`](/docs/concepts/storage/volumes/#flexvolume) - FlexVolume
+  (**deprecated** in v1.23)
 * [`gcePersistentDisk`](/docs/concepts/storage/volumes/#gcepersistentdisk) - GCE Persistent Disk
 * [`glusterfs`](/docs/concepts/storage/volumes/#glusterfs) - Glusterfs volume
 * [`hostPath`](/docs/concepts/storage/volumes/#hostpath) - HostPath volume

content/en/docs/reference/glossary/flexvolume.md

@@ -4,14 +4,14 @@ id: flexvolume
 date: 2018-06-25
 full_link: /docs/concepts/storage/volumes/#flexvolume
 short_description: >
-    FlexVolume is an interface for creating out-of-tree volume plugins. The {{< glossary_tooltip text="Container Storage Interface" term_id="csi" >}} is a newer interface which addresses several problems with FlexVolumes.
+    FlexVolume is an interface for creating out-of-tree volume plugins. It is deprecated in v1.23. The {{< glossary_tooltip text="Container Storage Interface" term_id="csi" >}} is a newer interface which addresses several problems with FlexVolumes.
 
 
 aka: 
 tags:
 - storage 
 ---
- FlexVolume is an interface for creating out-of-tree volume plugins. The {{< glossary_tooltip text="Container Storage Interface" term_id="csi" >}} is a newer interface which addresses several problems with FlexVolumes.
+ FlexVolume is an interface for creating out-of-tree volume plugins. It is deprecated in v1.23. The {{< glossary_tooltip text="Container Storage Interface" term_id="csi" >}} is a newer interface which addresses several problems with FlexVolumes.
 
 <!--more--> 
 

content/en/docs/setup/production-environment/tools/kubeadm/troubleshooting-kubeadm.md

@@ -375,6 +375,7 @@ For [flex-volume support](https://github.com/kubernetes/community/blob/ab55d85/c
 Kubernetes components like the kubelet and kube-controller-manager use the default path of
 `/usr/libexec/kubernetes/kubelet-plugins/volume/exec/`, yet the flex-volume directory _must be writeable_
 for the feature to work.
+(**Note** FlexVolume is deprecated in v1.23)
 
 To workaround this issue you can configure the flex-volume directory using the kubeadm
 [configuration file](/docs/reference/config-api/kubeadm-config.v1beta3/).