feat: allow configuring the updateStrategy for the DaemonSet

Author: johngmyers

helm/provisioner/templates/daemonset_linux.yaml

@@ -14,6 +14,8 @@ spec:
     matchLabels:
       app.kubernetes.io/name: {{ template "provisioner.name" . }}
       app.kubernetes.io/instance: {{ .Release.Name }}
+  updateStrategy:
+{{ toYaml .Values.updateStrategy | indent 4 }}
   template:
     metadata:
       labels:

helm/provisioner/templates/daemonset_windows.yaml

@@ -15,6 +15,8 @@ spec:
     matchLabels:
       app.kubernetes.io/name: {{ template "provisioner.name" . }}
       app.kubernetes.io/instance: {{ .Release.Name }}
+  updateStrategy:
+{{ toYaml .Values.updateStrategy | indent 4 }}
   template:
     metadata:
       labels:

helm/provisioner/values.yaml

@@ -158,6 +158,12 @@ hostPID: false
 # Ref: https://kubernetes.io/docs/concepts/workloads/pods/init-containers/
 initContainers: []
 
+# Update strategy for the DaemonSet.
+updateStrategy:
+  type: RollingUpdate
+  rollingUpdate:
+    maxUnavailable: 1
+
 #
 # Configure Prometheus monitoring
 #