Add cli playbook to retrieve the horizon url

This playbook will retrieve the horizon url from a heat stack and store it in
a temp file which can be used within the tripleoclient when displaybin the
url data.

Change-Id: I85cb99d47cf3cb4f3093fc856e9f6892115ff5ef
Signed-off-by: Kevin Carter <kecarter@redhat.com>

tripleo_ansible/playbooks/cli-undercloud-get-horizon-url.yaml

@@ -0,0 +1,47 @@
+---
+# Copyright 2019 Red Hat, Inc.
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+- name: Overcloud Get Horizon URL
+  connection: "{{ (tripleo_target_host is defined) | ternary('ssh', 'local') }}"
+  hosts: "{{ tripleo_target_host | default('localhost') }}"
+  remote_user: "{{ tripleo_target_user | default(lookup('env', 'USER')) }}"
+  gather_facts: "{{ (tripleo_target_host is defined) | ternary(true, false) }}"
+  any_errors_fatal: true
+  pre_tasks:
+    - name: Check for required inputs
+      fail:
+        msg: >
+          Input missing `{{ item }}`
+      when:
+        - hostvars[inventory_hostname][item] is undefined
+      loop:
+        - stack_name
+        - horizon_url_output_file
+  tasks:
+    - name: Fetch stack data
+      command: >-
+        openstack --os-cloud undercloud stack output show {{ stack_name }} EndpointMap -f yaml
+      register: stack_data_cmd
+      changed_when: false
+
+    - name: Read stack data
+      set_fact:
+        stack_data: "{{ stack_data_cmd.stdout | from_yaml }}"
+
+    - name: Create horizon url temp file
+      copy:
+        content: "{{ stack_data.output_value.HorizonPublic.uri }}"
+        dest: "{{ horizon_url_output_file }}"