From bfb5f3878a721aff14bd6017ec7438497c89c8f4 Mon Sep 17 00:00:00 2001
From: andyzhangx <xiazhang@microsoft.com>
Date: Fri, 13 Aug 2021 13:01:44 +0000
Subject: [PATCH] feat: support maxUnavailable config in helm chart

---
 charts/README.md                              |   1 +
 charts/latest/csi-driver-nfs-v3.0.0.tgz       | Bin 3374 -> 3428 bytes
 .../templates/csi-nfs-node.yaml               |   4 ++++
 charts/latest/csi-driver-nfs/values.yaml      |   1 +
 deploy/csi-nfs-node.yaml                      |   4 ++++
 5 files changed, 10 insertions(+)

diff --git a/charts/README.md b/charts/README.md
index 9b20b7b2..9443b035 100644
--- a/charts/README.md
+++ b/charts/README.md
@@ -64,6 +64,7 @@ The following table lists the configurable parameters of the latest NFS CSI Driv
 | `controller.runOnMaster`                          | run controller on master node                              | `false`                                                             |
 | `controller.logLevel`                             | controller driver log level                                                          |`5`                                                           |
 | `controller.tolerations`                              | controller pod tolerations                            |                                                              |
+| `node.maxUnavailable`                             | `maxUnavailable` value of driver node daemonset                            | `1`
 | `node.logLevel`                                   | node driver log level                                                          |`5`                                                           |
 | `node.livenessProbe.healthPort `                  | the health check port for liveness probe                    |`29653`                                                           |
 | `node.tolerations`                              | node pod tolerations                            |                                                              |
diff --git a/charts/latest/csi-driver-nfs-v3.0.0.tgz b/charts/latest/csi-driver-nfs-v3.0.0.tgz
index 09b5ecda1705d19c7e1ea78f6f6d2fc677d3ea1d..90a9e58f0a39d5a84d0e65743941a5dcd48e93cd 100644
GIT binary patch
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diff --git a/charts/latest/csi-driver-nfs/templates/csi-nfs-node.yaml b/charts/latest/csi-driver-nfs/templates/csi-nfs-node.yaml
index 8ae2d9ee..98504915 100755
--- a/charts/latest/csi-driver-nfs/templates/csi-nfs-node.yaml
+++ b/charts/latest/csi-driver-nfs/templates/csi-nfs-node.yaml
@@ -7,6 +7,10 @@ metadata:
   namespace: {{ .Release.Namespace }}
 {{ include "nfs.labels" . | indent 2 }}
 spec:
+  updateStrategy:
+    rollingUpdate:
+      maxUnavailable: {{ .Values.node.maxUnavailable }}
+    type: RollingUpdate
   selector:
     matchLabels:
       app: {{ .Values.node.name }}
diff --git a/charts/latest/csi-driver-nfs/values.yaml b/charts/latest/csi-driver-nfs/values.yaml
index 3c2a1ee7..11c5eeb1 100755
--- a/charts/latest/csi-driver-nfs/values.yaml
+++ b/charts/latest/csi-driver-nfs/values.yaml
@@ -41,6 +41,7 @@ controller:
 
 node:
   name: csi-nfs-node
+  maxUnavailable: 1
   logLevel: 5
   livenessProbe:
     healthPort: 29653
diff --git a/deploy/csi-nfs-node.yaml b/deploy/csi-nfs-node.yaml
index 84819874..524f662e 100644
--- a/deploy/csi-nfs-node.yaml
+++ b/deploy/csi-nfs-node.yaml
@@ -7,6 +7,10 @@ metadata:
   name: csi-nfs-node
   namespace: kube-system
 spec:
+  updateStrategy:
+    rollingUpdate:
+      maxUnavailable: 1
+    type: RollingUpdate
   selector:
     matchLabels:
       app: csi-nfs-node