feat: update certbot module

- update documentation
- add option to notify services
- set haproxy role to notify the haproxy service

modules/certbot/manifests/client/cert.pp

@@ -1,7 +1,13 @@
+# a define for creating a single certificate
+# - domain: the domain to generate a certificate for
+# - webserver: where to download the certificate from
+# - destination: the data directory on the client
+# - notify_service: what service to notify when the concat exec completes
 define certbot::client::cert (
   Stdlib::Fqdn          $domain,
   Stdlib::Fqdn          $webserver,
   Stdlib::Absolutepath  $destination = "/etc/pki/tls/letsencrypt/${domain}",
+  Optional[String]      $notify_service = undef,
 ) {
 
   file { $destination:
@@ -34,8 +40,16 @@ define certbot::client::cert (
       }
     }
 
+    # create file resources
     create_resources(file, $files_to_create)
 
+    # if notify_service is specified
+    if $notify_service != undef {
+      $service = Service[$notify_service]
+    }else{
+      $service = undef
+    }
+
     exec { "concat_${domain}_certs":
       command     => "cat ${destination}/fullchain.pem ${destination}/privkey.pem > ${destination}/fullchain_combined.pem",
       path        => ['/bin', '/usr/bin'],
@@ -44,6 +58,7 @@ define certbot::client::cert (
         File["${destination}/fullchain.pem"],
         File["${destination}/privkey.pem"],
       ],
+      notify      => $service,
     }
   } else {
     notify { 'Certificates are not yet ready on the generator server.': }