fix letsencrypt issuer template

cert-manager/letsencrypt-cluster-issuer.yaml

@@ -1,7 +1,7 @@
 apiVersion: cert-manager.io/v1
 kind: ClusterIssuer
 metadata:
-  name: letsencrypt-prod
+  name: letsencrypt-staging
 spec:
   acme:
     # You must replace this email address with your own.
@@ -14,5 +14,22 @@ spec:
       name: example-issuer-account-key
     # Add a single challenge solver, HTTP01 using nginx
     solvers:
-    - http01: {}
+    - dns01: {}
+---
+apiVersion: cert-manager.io/v1
+kind: ClusterIssuer
+metadata:
+  name: letsencrypt-prod
+spec:
+  acme:
+    # You must replace this email address with your own.
+    # Let's Encrypt will use this to contact you about expiring
+    # certificates, and issues related to your account.
+    email: [email protected]
+    server: https://acme-v02.api.letsencrypt.org/directory
+    privateKeySecretRef:
+      # Secret resource that will be used to store the account's private key.
+      name: example-issuer-account-key
+    # Add a single challenge solver, HTTP01 using nginx
+    solvers:
     - dns01: {}