[stable/cluster-autoscaler] Deployment strategy option (#20801)

Signed-off-by: Igor Belikov <mail@igorbelikov.com>

stable/cluster-autoscaler/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 description: Scales worker nodes within autoscaling groups.
 icon: https://github.com/kubernetes/kubernetes/blob/master/logo/logo.png
 name: cluster-autoscaler
-version: 6.4.0
+version: 6.5.0
 appVersion: 1.14.6
 home: https://github.com/kubernetes/autoscaler
 sources:

stable/cluster-autoscaler/README.md

@@ -176,6 +176,7 @@ Parameter | Description | Default
 `securityContext` | [Security context for pod](https://kubernetes.io/docs/tasks/configure-pod-container/security-context/) | `nil`
 `containerSecurityContext` | [Security context for container](https://kubernetes.io/docs/tasks/configure-pod-container/security-context/) | `nil`
 `resources` | pod resource requests & limits | `{}`
+`updateStrategy` | [Deployment update strategy](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#strategy) | `nil`
 `service.annotations` | annotations to add to service | none
 `service.externalIPs` | service external IP addresses | `[]`
 `service.loadBalancerIP` | IP address to assign to load balancer (if supported) | `""`

stable/cluster-autoscaler/templates/deployment.yaml

@@ -194,6 +194,10 @@ spec:
       securityContext:
         {{ toYaml .Values.securityContext | nindent 8 | trim }}
       {{- end }}
+      {{- if .Values.updateStrategy }}
+      strategy:
+        {{ toYaml .Values.updateStrategy | nindent 8 | trim }}
+      {{- end }}
       {{- if eq .Values.cloudProvider "gce" }}
       volumes:
         - name: cloudconfig

stable/cluster-autoscaler/values.yaml

@@ -147,6 +147,14 @@ priorityClassName: ""
 #     drop:
 #       - all
 
+## Deployment update strategy
+## Ref: https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#strategy
+# updateStrategy:
+#   rollingUpdate:
+#     maxSurge: 1
+#     maxUnavailable: 0
+#   type: RollingUpdate
+
 service:
   annotations: {}