Configure minion hostname

We should set the minion_hostname in the minion.conf similar to what we
do for the undercloud.

Change-Id: Iacd6e9860b7aabff65b6c2d383d488903a9a0287
Closes-Bug: #1839025

playbooks/multinode-undercloud-minion.yml

@@ -48,11 +48,6 @@
       shell: "{{ ansible_pkg_mgr }} --enablerepo='gating-repo' update -y"
       become: true
       when: hostvars['undercloud']['compressed_gating_repo'] is defined
-    - name: Include hostname tasks
-      include_role:
-        name: undercloud-setup
-        tasks_from: hostname
-      when: hostname_correction|default(false)|bool or step_set_undercloud_hostname|default(false)|bool
   tags:
     - undercloud-setup
 

roles/undercloud-minion-deploy/defaults/main.yml

@@ -5,6 +5,7 @@ minion_install_cmd: openstack undercloud minion install
 minion_install_cli_options: ""
 minion_post_install_script: minion-install-post.sh.j2
 minion_install_log: "{{ working_dir }}/minion_install.log"
+minion_minion_hostname: minion.localdomain
 
 minion_install_script: minion-install.sh.j2
 

roles/undercloud-minion-deploy/templates/minion.conf.j2

@@ -102,6 +102,7 @@ minion_enable_selinux = {{ minion_selinux_enabled }}
 # appropriately.  If set, the undercloud install will configure all
 # system hostname settings. (string value)
 #minion_hostname = <None>
+minion_hostname = {{ minion_minion_hostname }}
 
 # Network interface on the Undercloud that will be handling the PXE
 # boots and DHCP for Overcloud instances. (string value)