support optional dnsConfig on deployment podspec

Author: stensonb

charts/aws-pca-issuer/templates/deployment.yaml

@@ -29,6 +29,10 @@ spec:
         {{- toYaml .Values.podLabels | nindent 8 }}
         {{- end }}
     spec:
+      {{- if .Values.dnsConfig }}
+      dnsConfig:
+      {{- toYaml .Values.dnsConfig | nindent 8 }}
+      {{- end }}
       {{- with .Values.imagePullSecrets }}
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}

charts/aws-pca-issuer/values.yaml

@@ -55,6 +55,10 @@ service:
 # Annotations to add to the issuer Pod
 podAnnotations: {}
 
+# Pod dnsConfig : https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/#pod-dns-config
+# +docs:property
+dnsConfig: {}
+
 # Pod security context 
 # +docs:property
 podSecurityContext: