Use icinga_master_host to get master cert

Instead of assuming we can get it over DNS

tasks/main.yml

@@ -37,14 +37,14 @@
     icinga2 pki save-cert --key {{ icinga_client_certs_path ~ icinga_client_fqdn }}.key \
     --cert {{ icinga_client_certs_path ~ icinga_client_fqdn }}.crt \
     --trustedcert {{ icinga_client_certs_path }}trusted-master.crt \
-    --host {{ icinga_master_fqdn }}
+    --host {{ icinga_master_host }}
   changed_when: false
 
 - name: Setup Icinga client node.
   command: >
     icinga2 node setup \
     --cn {{ icinga_client_fqdn }} --endpoint {{ icinga_master_endpoint }} \
-    --zone {{ icinga_client_fqdn }} --parent_host {{ icinga_master_fqdn }} \
+    --zone {{ icinga_client_fqdn }} --parent_host {{ icinga_master_host }} \
     --trustedcert {{ icinga_client_certs_path }}trusted-master.crt \
     --accept-commands --accept-config --disable-confd
   changed_when: false