feat: Manage dns01 challenge credentials

Author: ThomasVitale

package/config/issuers/dns-credentials.yml

@@ -0,0 +1,23 @@
+#@ load("@ytt:data", "data")
+#@ load("@ytt:overlay", "overlay")
+
+#@ if data.values.letsencrypt.challenge.secret.name != "":
+---
+apiVersion: secretgen.carvel.dev/v1alpha1
+kind: SecretExport
+metadata:
+  name: #@ data.values.letsencrypt.challenge.secret.name
+  namespace: #@ data.values.letsencrypt.challenge.secret.namespace
+spec:
+  toNamespaces:
+    - #@ data.values.namespace
+
+---
+apiVersion: secretgen.carvel.dev/v1alpha1
+kind: SecretImport
+metadata:
+  name: #@ data.values.letsencrypt.challenge.secret.name
+  namespace: #@ data.values.namespace
+spec:
+  fromNamespace: #@ data.values.letsencrypt.challenge.secret.namespace
+#@ end