Use ansible for hosts entries

This patch updates the templates to use the new ansible role,
tripleo-hosts-entries, for managing the entries in /etc/hosts instead of
the values from the Heat stack.

Change-Id: I606e0f27f9f9ae9d85bc0fc653f8985eb734d004
Depends-On: Ia02ca1263590e2b579f2534e99119d7b1cd4b39a

common/deploy-steps.j2

@@ -203,6 +203,21 @@ parameters:
     default: {}
     type: json
     description: Map of extra data (hieradata) to set on each node.
+  UndercloudHostsEntries:
+    default: []
+    description: >
+      List of undercloud hosts entries to be appended to /etc/hosts. The
+      value is populated with the HEAT_HOSTS entries on the undercloud by
+      tripleoclient when running deploy.
+    type: comma_delimited_list
+  ExtraHostsEntries:
+    default: []
+    description: List of extra hosts entries to be appended to /etc/hosts
+    type: comma_delimited_list
+  VipHostsEntries:
+    default: []
+    description: List of VIP (virtual IP) hosts entries to be appended to /etc/hosts
+    type: comma_delimited_list
 
 conditions:
 {% for role in enabled_roles %}
@@ -371,6 +386,9 @@ outputs:
         enable_internal_tls: {get_param: EnableInternalTLS}
         cloud_domain: {get_param: CloudDomain}
         all_nodes_extra_map_data: {get_param: AllNodesExtraMapData}
+        undercloud_hosts_entries: {get_param: UndercloudHostsEntries}
+        extra_hosts_entries: {get_param: ExtraHostsEntries}
+        vip_hosts_entries: {get_param: VipHostsEntries}
       common_deploy_steps_tasks: {get_file: deploy-steps-tasks.yaml}
       common_deploy_steps_tasks_step_1: {get_file: deploy-steps-tasks-step-1.yaml}
       container_startup_configs_tasks: {get_file: container_startup_configs_tasks.yaml}
@@ -658,10 +676,15 @@ outputs:
                   environment:
                     artifact_urls: {{ '"{{' }} deploy_artifact_urls {{ '}}"' }}
 
-                - name: HostsConfig
-                  script: hosts-config.sh
-                  environment:
-                    HOSTS_ENTRY: {{ '"{{' }} hosts_entry {{ '}}"' }}
+                - name: Configure Hosts Entries
+                  include_role:
+                    name: tripleo-hosts-entries
+                  vars:
+                    tripleo_hosts_entries_undercloud_hosts_entries: {{ '"{{ ' }} undercloud_hosts_entries {{ ' }}"' }}
+                    tripleo_hosts_entries_extra_hosts_entries: {{ '"{{ ' }} extra_hosts_entries {{ ' }}"' }}
+                    tripleo_hosts_entries_vip_hosts_entries: {{ '"{{ ' }} vip_hosts_entries {{ ' }}"' }}
+                  tags:
+                    - tripleo_hosts_entries
 
               tags:
                 - overcloud

overcloud.j2.yaml

@@ -1121,6 +1121,13 @@ resources:
           - redis: {get_attr: [RedisVirtualIP, ip_address]}
           - ovn_dbs: {get_attr: [OVNDBsVirtualIP, ip_address]}
       CloudNames: {get_attr: [CloudNames, value]}
+      UndercloudHostsEntries: {get_param: UndercloudHostsEntries}
+      ExtraHostsEntries: {get_param: ExtraHostFileEntries}
+      VipHostsEntries:
+        if:
+          - add_vips_to_etc_hosts
+          - {get_attr: [VipHosts, value]}
+          - ''
 
 outputs:
   ManagedEndpoints:

puppet/role.role.j2.yaml

@@ -589,6 +589,7 @@ resources:
   {%- endfor %}
         fqdn_ctlplane: {get_attr: [NetHostMap, value, ctlplane, fqdn]}
         fqdn_canonical: {get_attr: [NetHostMap, value, canonical, fqdn]}
+        hostname_resolve_network: {get_param: [ServiceNetMap, {{role.name}}HostnameResolveNetwork]}
 
 outputs:
   ansible_host_vars_map:

releasenotes/notes/use-ansible-for-hosts-entries-b4905552515e17ff.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    The ansible tripleo-hosts-entries is now used for adding individual entries
+    to /etc/hosts for each overcloud node. This role is used instead of the
+    output data from the Heat stack.