telegraf-ds: support annotations on serviceaccount (#414)

charts/telegraf-ds/Chart.yaml

 apiVersion: v1
 name: telegraf-ds
-version: 1.0.28
+version: 1.0.29
 appVersion: 1.21.1
 deprecated: false
 description: Telegraf is an agent written in Go for collecting, processing, aggregating, and writing metrics.

charts/telegraf-ds/templates/serviceaccount.yaml

@@ -5,4 +5,8 @@ metadata:
   name: {{ include "telegraf.serviceAccountName" . }}
   labels:
     {{- include "telegraf.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
 {{- end }}

charts/telegraf-ds/values.yaml

@@ -79,6 +79,8 @@ serviceAccount:
   # The name of the ServiceAccount to use.
   # If not set and create is true, a name is generated using the fullname template
   # name:
+  # Annotations for the ServiceAccount
+  annotations: {}
 
 ## Specify priorityClassName
 ## Ref: https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/