Update docs n examples

Author: rille111

kubernetes-setup-dns-cert-https/certificate.yaml

@@ -1,4 +1,4 @@
-apiVersion: certmanager.k8s.io/v1alpha1
+apiVersion: cert-manager.io/v1alpha2
 kind: ClusterIssuer
 metadata:
   name: letsencrypt-prod
@@ -7,9 +7,12 @@ spec:
     # The ACME server URL
     server: https://acme-v02.api.letsencrypt.org/directory
     # Email address used for ACME registration
-    email: 'rickard.robin@gmail.com'
+    email: 'yourname@your-email.com'
     # Name of a secret used to store the ACME account private key
     privateKeySecretRef: 
       name: letsencrypt-prod
     # Enable the HTTP-01 challenge provider
-    http01: {}
+    solvers:
+    - http01:
+       ingress:
+         class: nginx

kubernetes-setup-dns-cert-https/production-ingress-service.yaml renamed to kubernetes-setup-dns-cert-https/production-ingresses.yaml

@@ -1,15 +1,18 @@
-apiVersion: certmanager.k8s.io/v1alpha1
-kind: ClusterIssuer
+apiVersion: cert-manager.io/v1alpha2
+kind: ClusterIssuer # Issuer
 metadata:
   name: letsencrypt-staging
 spec:
   acme:
     # The ACME server URL
     server: https://acme-staging-v02.api.letsencrypt.org/directory
     # Email address used for ACME registration
-    email: rille111@gmail.com
+    email: 'yourname@your-email.com'
     # Name of a secret used to store the ACME account private key
     privateKeySecretRef:
       name: letsencrypt-staging
     # Enable the HTTP-01 challenge provider
-    http01: {}
+    solvers:
+    - http01:
+       ingress:
+         class: nginx