Add container image prepare role

Adds tripleo_container_image_prepare role to execute the tripleo
container image prepare process.

Change-Id: Iec1c2a3afa9c6e2ef0011036749f294a1d9b9508

roles/tripleo_container_image_prepare/README.md

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+tripleo_container_image_prepare
+===============================
+
+A role to perform the container image prepare action.
+
+Requirements
+------------
+
+None.
+
+Role Variables
+--------------
+
+* `tripleo_container_image_prepare_become`: (Boolean) Run the command as root. This needs to be true when uploading to the local undercloud registry. Default: true
+* `tripleo_container_image_prepare_cleanup`: (String) Cleanup behavior for local images left after upload. Can be one of full, partial, or none. Default is not set.
+* `tripleo_container_image_prepare_debug`: (Boolean) Flag to print out the prepare command. Default: False
+* `tripleo_container_image_prepare_dry_run`: (Boolean) Perform a dry run upload which will not perform any push, pull or modify operations. The environment file will still be populaged. Default: false
+* `tripleo_container_image_prepare_environment_files`: (List) List of environment files. Default: []
+* `tripleo_container_image_prepare_environment_directory`: (List) Directories containing environment files. Should not be used if `tripleo_container_image_prepare_environment_files` is defined. Default: []
+* `tripleo_container_image_prepare_output_env_file`: (String) File to write heat environment file which specifies all image parameters. Default is not set.
+* `tripleo_container_image_prepare_output_roles_file`: (String) Roles file path on the remote system. Default is not set.
+* `tripleo_container_image_prepare_timeout`: (Number) Amount of time to wait for the command to conplete. Default: 1800
+
+Output Variables
+----------------
+
+* `tripleo_container_image_prepare_result`: Ansible shell execution results
+
+Dependencies
+------------
+
+None.
+
+Example Playbook
+----------------
+
+Example container prepare execution playbook
+
+    - hosts: undercloud
+      gather_facts: true
+      tasks:
+        - name: Run container prepare
+          import_role:
+            name: tripleo_container_image_prepare
+          vars:
+            tripleo_container_image_prepare_files:
+              - /home/stack/container-image-prepare.yaml
+
+License
+-------
+
+Apache-2.0

roles/tripleo_container_image_prepare/defaults/main.yml

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+---
+# defaults file for tripleo_container_image_prepare
+tripleo_container_image_prepare_become: true
+tripleo_container_image_prepare_cleanup:
+tripleo_container_image_prepare_debug: false
+tripleo_container_image_prepare_dry_run: false
+tripleo_container_image_prepare_environemnt_files: []
+tripleo_container_image_prepare_environment_directory: []
+tripleo_container_image_prepare_output_env_file:
+tripleo_container_image_prepare_roles_file:
+tripleo_container_image_prepare_timeout: 1800

roles/tripleo_container_image_prepare/meta/main.yml

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+---
+# 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_container_image_prepare
+  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_container_image_prepare/tasks/main.yml

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+---
+# tasks file for tripleo_container_image_prepare
+- name: Setup container image prepare facts
+  set_fact:
+    _prepare_cmd: >-
+      openstack tripleo container image prepare
+      {{ tripleo.operator.shell_arg_list(tripleo_container_image_prepare_environment_files, '--environment-file') }}
+      {{ tripleo.operator.shell_arg_list(tripleo_container_image_prepare_environment_directory, '--environment-directory') }}
+      {{ tripleo_container_image_prepare_roles_file | ternary('--roles-file ' ~ tripleo_container_image_prepare_roles_file, '') }}
+      {{ tripleo_container_image_prepare_output_env_file | ternary('--output-env-file ' ~ tripleo_container_image_prepare_output_env_file, '') }}
+      {{ tripleo_container_image_prepare_dry_run | ternary('--dry-run', '') }}
+      {{ tripleo_container_image_prepare_cleanup | ternary('--cleanup ' ~ tripleo_container_image_prepare_cleanup, '') }}
+
+- name: Show the container image prepare command
+  debug:
+    var: _prepare_cmd
+  when: tripleo_container_image_prepare_debug|bool
+
+- name: Container image prepare
+  shell: "{{ _prepare_cmd }}"  # noqa 305
+  async: "{{ tripleo_container_image_prepare_timeout }}"
+  poll: 1
+  become: "{{ tripleo_container_image_prepare_become }}"
+  register: tripleo_container_image_prepare_result
+  changed_when: true

roles/tripleo_container_image_prepare/tests/inventory

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+localhost
+

roles/tripleo_container_image_prepare/tests/test.yml

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+---
+- hosts: localhost
+  remote_user: root
+  roles:
+    - tripleo_container_image_prepare