Dns config options (#446)

* Update values.yaml

Add dnsConfig option.

* Update deployment.yaml

DnsConfig option.

* Update deployment.yaml

* Update README.md

Author: amithapa

charts/kubernetes-external-secrets/README.md

@@ -105,6 +105,7 @@ The following table lists the configurable parameters of the `kubernetes-externa
 | `tolerations`                             | List of node taints to tolerate (requires Kubernetes >= 1.6)                                                                      | `[]`                                  |
 | `affinity`                                | Affinity for pod assignment                                                                                                       | `{}`                                  |
 | `resources`                               | Pod resource requests & limits                                                                                                    | `{}`                                  |
+| `dnsConfig`                               | Dns Config for pod.                                                                                                   | `{}`                                  |
 | `imagePullSecrets`                        | Reference to one or more secrets to be used when pulling images                                                                   | `[]`                                  |
 | `serviceMonitor.enabled`                  | Enable the creation of a serviceMonitor object for the Prometheus operator                                                        | `false`                               |
 | `serviceMonitor.interval`                 | The interval the Prometheus endpoint is scraped                                                                                   | `30s`                                 |

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

@@ -67,6 +67,10 @@ spec:
             readOnly: true
           {{- end }}
           {{- end }}
+      {{- with .Values.dnsConfig }}
+      dnsConfig:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       {{- with .Values.securityContext }}
       securityContext:
         {{- toYaml . | nindent 8 }}
@@ -90,4 +94,4 @@ spec:
         secret:
           secretName: {{ $value.secret }}
       {{- end }}
-      {{- end }}
+      {{- end }}

charts/kubernetes-external-secrets/values.yaml

@@ -83,6 +83,8 @@ fullnameOverride: ""
 podAnnotations: {}
 podLabels: {}
 
+dnsConfig: {}
+
 securityContext:
   runAsNonRoot: true
   # Required for use of IRSA, see https://docs.aws.amazon.com/eks/latest/userguide/iam-roles-for-service-accounts-technical-overview.html