Fixes for #221

Another update for ELAN steady-state: remove the cluster nodes from the
reverse DNS file (we don't know any cluster definitions yet).

local-playbooks/roles/configure-dns/templates/var/named/subnet.in-addr.arpa.zone.j2

@@ -1,9 +1,3 @@
-{% set bootstrap = cluster_nodes['bootstrap'] %}
-{% set masters = cluster_nodes['masters'] %}
-{% set workers = cluster_nodes['workers'] %}
-{% if cluster_nodes['bootworker'] is defined %}
-{% set bootworker = cluster_nodes['bootworker'] %}
-{% endif %}
 $TTL 900
 
 @ IN SOA bastion-int.{{ cluster_domain_name }} hostmaster.{{ cluster_domain_name }}. (
@@ -14,22 +8,3 @@ $TTL 900
 {{ zvm_internal_ip_address.split('.')[3] }} IN PTR zVM.ibmpoc.internal.
 {{ zvm_internal_ip_address.split('.')[3] }} IN PTR LDAPSRV.ibmpoc.internal.
 {{ bastion_private_ip_address.split('.')[3] }} IN PTR bastion-int.{{ cluster_domain_name }}.
-
-{% for item in masters.keys() %}
-{{ masters[item].ip.split('.')[3] }} IN PTR {{ item }}.{{ cluster_domain_name }}.
-{% endfor %}
-
-{% if workers is defined %}
-{% for item in workers.keys() %}
-{{ workers[item].ip.split('.')[3] }} IN PTR {{ item }}.{{ cluster_domain_name }}.
-{% endfor %}
-{% endif %}
-{% if bootworker is defined %}
-{% for item in bootworker.keys() %}
-{{ bootworker[item].ip.split('.')[3] }} IN PTR {{ item }}.{{ cluster_domain_name }}.
-{% endfor %}
-{% endif %}
-
-{% for item in bootstrap.keys() %}
-{{ bootstrap[item].ip.split('.')[3] }} IN PTR {{ item }}.{{ cluster_domain_name }}.
-{% endfor %}