ipatests: Configure a replica in TestACMEwithExternalCA

This subclasses TestACME which installs and configures a
replica in order to verify global enable/disable of ACME.

https://pagure.io/freeipa/issue/8581

Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Mohammad Rizwan <myusuf@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
Reviewed-By: Armando Neto <abiagion@redhat.com>

ipatests/test_integration/test_acme.py

@@ -486,7 +486,7 @@ class TestACMECALess(IntegrationTest):
 class TestACMEwithExternalCA(TestACME):
     """Test the FreeIPA ACME service with external CA"""
 
-    num_replicas = 0
+    num_replicas = 1
     num_clients = 1
 
     @classmethod
@@ -510,3 +510,7 @@ class TestACMEwithExternalCA(TestACME):
         tasks.config_host_resolvconf_with_master_data(
             cls.master, cls.clients[0]
         )
+        tasks.install_replica(cls.master, cls.replicas[0])
+        tasks.config_host_resolvconf_with_master_data(
+            cls.master, cls.replicas[0]
+        )