feat: Helm chart dns options (#1377)

Adds dnsConfig to allow configuration of custom dns options for the eso deployment

deploy/charts/external-secrets/templates/deployment.yaml

@@ -93,6 +93,10 @@ spec:
           volumeMounts:
           {{- toYaml .Values.extraVolumeMounts | nindent 12 }}
           {{- end }}
+      {{- if .Values.dnsConfig }}
+      dnsConfig:
+          {{- toYaml .Values.dnsConfig | nindent 8 }}
+      {{- end }}
       {{- if .Values.extraVolumes }}
       volumes:
       {{- toYaml .Values.extraVolumes | nindent 8 }}

deploy/charts/external-secrets/values.yaml

@@ -309,6 +309,7 @@ certController:
     ## -- Map of extra arguments to pass to container.
   extraArgs: {}
 
+
     ## -- Extra volumes to pass to pod.
   extraVolumes: []
 
@@ -338,3 +339,6 @@ certController:
       # requests:
       #   cpu: 10m
       #   memory: 32Mi
+
+# -- Specifies `dnsOptions` to deployment
+dnsConfig: {}