Fix minor issues and leftovers (#63)

Co-authored-by: Juan Manuel "Kang" Perez <devel@kangmak.es>

charts/stateless-dns/templates/_helpers.tpl

@@ -73,7 +73,6 @@ Selector labels
 {{- define "stateless-dns.selectorLabels" -}}
 app.kubernetes.io/name: {{ include "stateless-dns.name" . }}
 app.kubernetes.io/instance: {{ .Release.Name }}
-app.kubernetes.io/component: external-dns
 {{- end }}
 
 

charts/stateless-dns/values.yaml

@@ -124,10 +124,11 @@ externalDNS:
   # 3. Ensure a blank `%{record_type}` does not leave trailing or leading dots or dashes, or two consecutive dashes.
   txtPrefix: "in%{record_type}.stateless-dns."  # Each of the entries added by external-dns will create a TXT entry in the DNS too to mark external-dns as it owner. The TXT entry name will be the entry that is being created plus this prefix. For furhter information of this default, please, refer to the long comment inside `values.yaml`
   txtSuffix: ""  # Same as above but TXT entries are decorated with a suffix instead of a prefix.
-  txtWildcardReplacement: ""  # For more information on how TXT entries are created refer to the doc of `txtPrefix`. This is the prefix added to wildcard entries as they cannot be calculated.
+  txtWildcardReplacement: "wildcard"  # For more information on how TXT entries are created refer to the doc of `txtPrefix`. This is the prefix added to wildcard entries as they cannot be calculated.
   # external-dns refuses to send records that has a trailing dot.
   # PowerDNS refuses to accept domain without a trailing dot.
   # That makes impossible to support NS and MX types. So these types have to be in the declared at "zones" in the values.
+  # During the testing we were able to create only "A" and "TXT" records with this setup.
   managedRecordTypes:  # Entry types that external-dns will be able to create in the provider. NS and MX entries are unsupported, for more information read the full explanation in the `values.yaml`.
     - A