Update release notes; Implement useOldCSIDriver parameter

charts/aws-ebs-csi-driver/CHANGELOG.md

@@ -1,6 +1,14 @@
 # Helm chart
 
-# v2.11.0
+## v2.11.1
+* Add `useOldCSIDriver` parameter to use old `CSIDriver` object.
+
+## v2.11.0
+
+**Important Notice:** This version updates the `CSIDriver` object in order to fix [a bug with static volumes and the `fsGroup` parameter](https://github.com/kubernetes-sigs/aws-ebs-csi-driver/issues/1365). This upgrade will fail on existing clusters because the associated field in `CSIDriver` is immutable.
+
+Users upgrading to this version should pre-delete the existing `CSIDriver` object (example: `kubectl delete csidriver ebs.csi.aws.com`). This will not affect any existing volumes, but will cause the EBS CSI Driver to be unavailable to handle future requests, and should be immediately followed by an upgrade. For users that cannot delete the `CSIDriver` object, v2.11.1 implements a new parameter `useOldCSIDriver` that will use the previous `CSIDriver`.
+
 * Bump app/driver to version `v1.11.3`
 * Add support for leader election tuning for `csi-provisioner` and `csi-attacher` ([#1371](https://github.com/kubernetes-sigs/aws-ebs-csi-driver/pull/1371), [@moogzy](https://github.com/moogzy))
 * Change `fsGroupPolicy` to `File` ([#1377](https://github.com/kubernetes-sigs/aws-ebs-csi-driver/pull/1377), [@ConnorJC3](https://github.com/ConnorJC3))

charts/aws-ebs-csi-driver/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: 1.11.3
 name: aws-ebs-csi-driver
 description: A Helm chart for AWS EBS CSI Driver
-version: 2.11.0
+version: 2.11.1
 kubeVersion: ">=1.17.0-0"
 home: https://github.com/kubernetes-sigs/aws-ebs-csi-driver
 sources:

charts/aws-ebs-csi-driver/templates/csidriver.yaml

@@ -7,4 +7,6 @@ metadata:
 spec:
   attachRequired: true
   podInfoOnMount: false
+  {{- if not .Values.useOldCSIDriver }}
   fsGroupPolicy: File
+  {{- end }}

charts/aws-ebs-csi-driver/values.yaml

@@ -244,3 +244,8 @@ storageClasses: []
 #   reclaimPolicy: Retain
 #   parameters:
 #     encrypted: "true"
+
+# Use old CSIDriver without an fsGroupPolicy set
+# Intended for use with older clusters that cannot easily replace the CSIDriver object
+# This parameter should always be false for new installations
+useOldCSIDriver: false