Add role to cover ansible config generation

Adds tripleo-config-generate-ansible role to run the command to generate
the default ansible config.

Change-Id: I2367ac443d1d7b370f7c0744539a20031c598f7d

roles/tripleo-config-generate-ansible/README.md

@@ -0,0 +1,46 @@
+tripleo-config-generate-ansible
+===============================
+
+A role to generate the default ansible.cfg for a deployment.
+
+Requirements
+------------
+
+None.
+
+Role Variables
+--------------
+
+
+* `tripleo_config_generate_ansible_debug`: (Boolean) Flag used to enable the debug version of commands. Default: false
+* `tripleo_config_generate_ansible_deployment_user`: (String) Deployment user to use. Default: "{{ ansible_user }}"
+* `tripleo_config_generate_ansible_os_cloud`: (String) OS_CLOUD value to use when running the command. If tripleo_os_cloud is defined, it will be the default. Otherwise the default is ''. This variable takes precedence over `tripleo_config_generate_ansible_rc_file`.
+* `tripleo_config_generate_ansible_output_dir`: (String) Directory to output ansible.cfg and ansible.log files. Default: "{{ ansible_env.HOME }}"
+* `tripleo_config_generate_ansible_rc_file`: (String) Path to the credential file to use. If tripleo_rc_file is defined, it will be the default. Default: "{{ ansible_env.HOME }}/overcloudrc"
+
+Output Variables
+----------------
+
+* `tripleo_config_generate_ansible_result`: Ansible shell execution results
+
+Dependencies
+------------
+
+None.
+
+Example Playbook
+----------------
+
+Example install execution playbook
+
+    - hosts: undercloud
+      gather_facts: true
+      tasks:
+        - name: Generate default ansible config
+          import_role:
+            name: tripleo-config-generate-ansible
+
+License
+-------
+
+Apache-2.0

roles/tripleo-config-generate-ansible/defaults/main.yml

@@ -0,0 +1,7 @@
+---
+# defaults file for tripleo-config-generate-ansible
+tripleo_config_generate_ansible_debug: false
+tripleo_config_generate_ansible_deployment_user: "{{ ansible_user }}"
+tripleo_config_generate_ansible_os_cloud: "{{ tripleo_os_cloud | default('') }}"
+tripleo_config_generate_ansible_output_dir: "{{ ansible_env.HOME }}"
+tripleo_config_generate_ansible_rc_file: "{{ tripleo_rc_file | default(ansible_env.HOME ~ '/overcloudrc') }}"

roles/tripleo-config-generate-ansible/meta/main.yml

@@ -0,0 +1,42 @@
+---
+# 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.
+
+
+galaxy_info:
+  author: OpenStack
+  description: TripleO Operator Role -- tripleo-config-generate-ansible
+  company: Red Hat
+  license: Apache-2.0
+  min_ansible_version: 2.8
+  #
+  # Provide a list of supported platforms, and for each platform a list of versions.
+  # If you don't wish to enumerate all versions for a particular platform, use 'all'.
+  # To view available platforms and versions (or releases), visit:
+  # https://galaxy.ansible.com/api/v1/platforms/
+  #
+  platforms:
+    - name: CentOS
+      versions:
+        - 7
+        - 8
+
+  galaxy_tags:
+    - tripleo
+
+
+# List your role dependencies here, one per line. Be sure to remove the '[]' above,
+# if you add dependencies to this list.
+dependencies: []

roles/tripleo-config-generate-ansible/tasks/main.yml

@@ -0,0 +1,22 @@
+---
+- name: Setup config generate ansible facts
+  set_fact:
+    _generate_cmd: >-
+      {{ tripleo_config_generate_ansible_os_cloud | ternary('', "source " ~ tripleo_config_generate_ansible_rc_file ~ "; ") }}
+      openstack tripleo config generate ansible
+      {{ tripleo_config_generate_ansible_deployment_user | ternary("--deployment_user " ~ tripleo_config_generate_ansible_deployment_user, '') }}
+      {{ tripleo_config_generate_ansible_output_dir | ternary("--output-dir " ~ tripleo_config_generate_ansible_output_dir, '') }}
+
+- name: Show the config generate ansible command
+  debug:
+    var: _generate_cmd
+  when: tripleo_config_generate_ansible_debug|bool
+
+- name: tripleo config generate ansible
+  shell: "{{ _generate_cmd }}"  # noqa 305
+  args:
+    warn: false
+  environment:
+    OS_CLOUD: "{{ tripleo_config_generate_ansible_os_cloud }}"
+  register: tripleo_config_generate_ansible_result
+  changed_when: true

roles/tripleo-config-generate-ansible/tests/inventory

@@ -0,0 +1 @@
+localhost

roles/tripleo-config-generate-ansible/tests/test.yml

@@ -0,0 +1,5 @@
+---
+- hosts: localhost
+  remote_user: root
+  roles:
+    - tripleo-config-generate-ansible