Force lowercase hostnames

Updates the inventory, config-download and deployments.yaml tasks file
to force using lowercase hostnames everywhere. Hostnames should be
treated as case insensitive.

Change-Id: If9365f53c215c656cc558f07fd6651dd4a471fbf
Closes-Bug: #1777660

tripleo_common/inventory.py

@@ -204,7 +204,7 @@ class TripleoInventory(object):
         for role, hostnames in role_net_hostname_map.items():
             if hostnames:
                 names = hostnames.get(self.host_network) or []
-                shortnames = [n.split(".%s." % self.host_network)[0]
+                shortnames = [n.split(".%s." % self.host_network)[0].lower()
                               for n in names]
                 ips = role_net_ip_map[role][self.host_network]
                 hosts = {}

tripleo_common/templates/deployments.yaml

@@ -1,10 +1,10 @@
 - name: Lookup deployment UUID
   set_fact:
-    deployment_uuid: "{{ lookup('file', tripleo_role_name ~ '/' ~ ansible_hostname ~ '/' ~ item) | from_yaml | json_query(item ~ '.id')}}"
+    deployment_uuid: "{{ lookup('file', tripleo_role_name ~ '/' ~ ansible_hostname | lower ~ '/' ~ item) | from_yaml | json_query(item ~ '.id')}}"
 
 - name: "Render deployment file for {{ item }}"
   copy:
-    content: "[ {{ lookup('file', tripleo_role_name ~ '/' ~ ansible_hostname ~ '/' ~ item) | from_yaml | json_query(item) }} ]"
+    content: "[ {{ lookup('file', tripleo_role_name ~ '/' ~ ansible_hostname | lower ~ '/' ~ item) | from_yaml | json_query(item) }} ]"
     dest: "/var/lib/heat-config/tripleo-config-download/{{ item ~ '-' ~ deployment_uuid }}"
   become: true
 

tripleo_common/utils/config.py

@@ -49,7 +49,7 @@ class Config(object):
                 for idx, name in enumerate(shortnames):
                     if 'server_ids' in role_node_id_map:
                         server_id = role_node_id_map['server_ids'][role][idx]
-                        servers[server_id] = name
+                        servers[server_id] = name.lower()
         return servers
 
     def get_deployment_data(self, stack,