[telegraf] Support Annotations for ServiceAccount (#184)

charts/telegraf/Chart.yaml

 apiVersion: v1
 name: telegraf
-version: 1.7.25
+version: 1.7.26
 appVersion: 1.14
 deprecated: false
 description: Telegraf is an agent written in Go for collecting, processing, aggregating, and writing metrics.

charts/telegraf/templates/serviceaccount.yaml

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

charts/telegraf/values.yaml

@@ -113,6 +113,8 @@ 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: {}
 
 ## Exposed telegraf configuration
 ## For full list of possible values see `/docs/all-config-values.yaml` and `/docs/all-config-values.toml`