clc_blueprint_package: module for installing blueprint packages for Centurylink Cloud servers
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Siva Popuri
Matt Clay
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#!/usr/bin/python
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#
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# Copyright (c) 2015 CenturyLink
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#
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# This file is part of Ansible.
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>
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#
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DOCUMENTATION = '''
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module: clc_blueprint_package
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short_description: deploys a blue print package on a set of servers in CenturyLink Cloud.
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description:
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- An Ansible module to deploy blue print package on a set of servers in CenturyLink Cloud.
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version_added: "2.0"
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options:
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server_ids:
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description:
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- A list of server Ids to deploy the blue print package.
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required: True
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package_id:
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description:
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- The package id of the blue print.
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required: True
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package_params:
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description:
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- The dictionary of arguments required to deploy the blue print.
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default: {}
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required: False
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state:
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description:
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- Whether to install or un-install the package. Currently it supports only "present" for install action.
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required: False
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default: present
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choices: ['present']
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wait:
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description:
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- Whether to wait for the tasks to finish before returning.
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choices: [ True, False ]
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default: True
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required: False
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requirements:
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- python = 2.7
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- requests >= 2.5.0
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- clc-sdk
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notes:
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- To use this module, it is required to set the below environment variables which enables access to the
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Centurylink Cloud
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- CLC_V2_API_USERNAME, the account login id for the centurylink cloud
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- CLC_V2_API_PASSWORD, the account password for the centurylink cloud
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- Alternatively, the module accepts the API token and account alias. The API token can be generated using the
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CLC account login and password via the HTTP api call @ https://api.ctl.io/v2/authentication/login
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- CLC_V2_API_TOKEN, the API token generated from https://api.ctl.io/v2/authentication/login
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- CLC_ACCT_ALIAS, the account alias associated with the centurylink cloud
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- Users can set CLC_V2_API_URL to specify an endpoint for pointing to a different CLC environment.
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'''
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EXAMPLES = '''
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# Note - You must set the CLC_V2_API_USERNAME And CLC_V2_API_PASSWD Environment variables before running these examples
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- name: Deploy package
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clc_blueprint_package:
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server_ids:
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- UC1WFSDANS01
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- UC1WFSDANS02
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package_id: 77abb844-579d-478d-3955-c69ab4a7ba1a
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package_params: {}
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'''
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__version__ = '${version}'
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from distutils.version import LooseVersion
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try:
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import requests
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except ImportError:
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REQUESTS_FOUND = False
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else:
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REQUESTS_FOUND = True
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#
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# Requires the clc-python-sdk.
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# sudo pip install clc-sdk
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#
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try:
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import clc as clc_sdk
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from clc import CLCException
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except ImportError:
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CLC_FOUND = False
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clc_sdk = None
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else:
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CLC_FOUND = True
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class ClcBlueprintPackage():
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clc = clc_sdk
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module = None
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def __init__(self, module):
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"""
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Construct module
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"""
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self.module = module
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if not CLC_FOUND:
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self.module.fail_json(
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msg='clc-python-sdk required for this module')
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if not REQUESTS_FOUND:
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self.module.fail_json(
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msg='requests library is required for this module')
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if requests.__version__ and LooseVersion(requests.__version__) < LooseVersion('2.5.0'):
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self.module.fail_json(
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msg='requests library version should be >= 2.5.0')
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self._set_user_agent(self.clc)
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def process_request(self):
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"""
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Process the request - Main Code Path
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:return: Returns with either an exit_json or fail_json
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"""
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p = self.module.params
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self._set_clc_credentials_from_env()
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server_ids = p['server_ids']
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package_id = p['package_id']
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package_params = p['package_params']
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state = p['state']
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if state == 'present':
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changed, changed_server_ids, request_list = self.ensure_package_installed(
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server_ids, package_id, package_params)
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self._wait_for_requests_to_complete(request_list)
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self.module.exit_json(changed=changed, server_ids=changed_server_ids)
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@staticmethod
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def define_argument_spec():
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"""
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This function defines the dictionary object required for
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package module
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:return: the package dictionary object
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"""
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argument_spec = dict(
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server_ids=dict(type='list', required=True),
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package_id=dict(required=True),
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package_params=dict(type='dict', default={}),
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wait=dict(default=True),
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state=dict(default='present', choices=['present'])
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)
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return argument_spec
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def ensure_package_installed(self, server_ids, package_id, package_params):
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"""
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Ensure the package is installed in the given list of servers
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:param server_ids: the server list where the package needs to be installed
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:param package_id: the blueprint package id
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:param package_params: the package arguments
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:return: (changed, server_ids, request_list)
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changed: A flag indicating if a change was made
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server_ids: The list of servers modified
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request_list: The list of request objects from clc-sdk
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"""
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changed = False
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request_list = []
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servers = self._get_servers_from_clc(
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server_ids,
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'Failed to get servers from CLC')
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for server in servers:
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if not self.module.check_mode:
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request = self.clc_install_package(
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server,
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package_id,
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package_params)
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request_list.append(request)
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changed = True
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return changed, server_ids, request_list
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def clc_install_package(self, server, package_id, package_params):
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"""
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Install the package to a given clc server
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:param server: The server object where the package needs to be installed
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:param package_id: The blue print package id
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:param package_params: the required argument dict for the package installation
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:return: The result object from the CLC API call
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"""
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result = None
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try:
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result = server.ExecutePackage(
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package_id=package_id,
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parameters=package_params)
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except CLCException as ex:
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self.module.fail_json(msg='Failed to install package : {0} to server {1}. {2}'.format(
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package_id, server.id, ex.response_text
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))
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return result
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def _wait_for_requests_to_complete(self, request_lst):
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"""
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Waits until the CLC requests are complete if the wait argument is True
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:param request_lst: The list of CLC request objects
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:return: none
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"""
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if not self.module.params['wait']:
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return
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for request in request_lst:
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request.WaitUntilComplete()
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for request_details in request.requests:
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if request_details.Status() != 'succeeded':
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self.module.fail_json(
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msg='Unable to process package install request')
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def _get_servers_from_clc(self, server_list, message):
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"""
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Internal function to fetch list of CLC server objects from a list of server ids
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:param the list server ids
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:return the list of CLC server objects
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"""
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try:
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return self.clc.v2.Servers(server_list).servers
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except CLCException as ex:
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self.module.fail_json(msg=message + ': %s' % ex)
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def _set_clc_credentials_from_env(self):
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"""
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Set the CLC Credentials on the sdk by reading environment variables
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:return: none
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"""
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env = os.environ
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v2_api_token = env.get('CLC_V2_API_TOKEN', False)
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v2_api_username = env.get('CLC_V2_API_USERNAME', False)
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v2_api_passwd = env.get('CLC_V2_API_PASSWD', False)
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clc_alias = env.get('CLC_ACCT_ALIAS', False)
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api_url = env.get('CLC_V2_API_URL', False)
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if api_url:
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self.clc.defaults.ENDPOINT_URL_V2 = api_url
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if v2_api_token and clc_alias:
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self.clc._LOGIN_TOKEN_V2 = v2_api_token
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self.clc._V2_ENABLED = True
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self.clc.ALIAS = clc_alias
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elif v2_api_username and v2_api_passwd:
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self.clc.v2.SetCredentials(
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api_username=v2_api_username,
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api_passwd=v2_api_passwd)
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else:
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return self.module.fail_json(
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msg="You must set the CLC_V2_API_USERNAME and CLC_V2_API_PASSWD "
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"environment variables")
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@staticmethod
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def _set_user_agent(clc):
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if hasattr(clc, 'SetRequestsSession'):
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agent_string = "ClcAnsibleModule/" + __version__
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ses = requests.Session()
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ses.headers.update({"Api-Client": agent_string})
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ses.headers['User-Agent'] += " " + agent_string
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clc.SetRequestsSession(ses)
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def main():
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"""
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Main function
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:return: None
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"""
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module = AnsibleModule(
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argument_spec=ClcBlueprintPackage.define_argument_spec(),
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supports_check_mode=True
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)
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clc_blueprint_package = ClcBlueprintPackage(module)
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clc_blueprint_package.process_request()
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from ansible.module_utils.basic import *
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if __name__ == '__main__':
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main()
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