Merge pull request #2157 from subnet-dev/allow-templating-of-updatestrategy-for-worker-daemonset

add configurable  worker daemonset updateStrategy in Helm chart

Author: k8s-ci-robot

deployment/helm/node-feature-discovery/templates/worker.yaml

@@ -13,6 +13,10 @@ metadata:
   {{- end }}
 spec:
   revisionHistoryLimit: {{ .Values.worker.revisionHistoryLimit }}
+  {{- with .Values.worker.updateStrategy }}
+  updateStrategy:
+    {{- toYaml . | nindent 4 }}
+  {{- end}}
   selector:
     matchLabels:
       {{- include "node-feature-discovery.selectorLabels" . | nindent 6 }}

deployment/helm/node-feature-discovery/values.yaml

@@ -470,6 +470,12 @@ worker:
 
   priorityClassName: ""
 
+  updateStrategy: {}
+    # type: RollingUpdate
+    # rollingUpdate:
+    #   maxSurge: 0
+    #   maxUnavailable: "10%"
+
 topologyUpdater:
   config: ### <NFD-TOPOLOGY-UPDATER-CONF-START-DO-NOT-REMOVE>
     ## key = node name, value = list of resources to be excluded.

docs/deployment/helm.md

@@ -266,6 +266,7 @@ API's you need to install the prometheus operator in your cluster.
 | `worker.readinessProbe.timeoutSeconds`      | integer | 1 (by Kubernetes)       | Specifies the number of seconds after which the probe times out.                                                                                                                                             |
 | `worker.readinessProbe.successThreshold`    | integer | 1 (by Kubernetes)       | Specifies the number of consecutive successes of readiness probes before considering the pod as ready.                                                                                                       |
 | `worker.dnsPolicy`                          | array   | ClusterFirstWithHostNet | NFD worker pod [dnsPolicy](https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/#pod-s-dns-policy)                                                                                        |
+| `worker.updateStrategy`                     | dict    | {}                      | Daemonset [updateStrategy](https://kubernetes.io/docs/tasks/manage-daemon/update-daemon-set/#performing-a-rolling-update)                                                                                    |
 
 ### Topology updater parameters