From 01847f7bfc7e58b87c9868623aa4a37e2eaddf46 Mon Sep 17 00:00:00 2001 From: Siva Popuri Date: Tue, 28 Jul 2015 12:58:07 -0500 Subject: [PATCH] Ansible module for managing server snapshots in Centurylink Cloud --- .../cloud/centurylink/clc_server_snapshot.py | 400 ++++++++++++++++++ 1 file changed, 400 insertions(+) create mode 100644 lib/ansible/modules/extras/cloud/centurylink/clc_server_snapshot.py diff --git a/lib/ansible/modules/extras/cloud/centurylink/clc_server_snapshot.py b/lib/ansible/modules/extras/cloud/centurylink/clc_server_snapshot.py new file mode 100644 index 00000000000..cb5f66e7a8d --- /dev/null +++ b/lib/ansible/modules/extras/cloud/centurylink/clc_server_snapshot.py @@ -0,0 +1,400 @@ +#!/usr/bin/python + +# +# Copyright (c) 2015 CenturyLink +# +# This file is part of Ansible. +# +# Ansible is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# Ansible is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with Ansible. If not, see +# + +DOCUMENTATION = ''' +module: clc_server_snapshot +short_description: Create, Delete and Restore server snapshots in CenturyLink Cloud. +description: + - An Ansible module to Create, Delete and Restore server snapshots in CenturyLink Cloud. +version_added: "2.0" +options: + server_ids: + description: + - The list of CLC server Ids. + required: True + expiration_days: + description: + - The number of days to keep the server snapshot before it expires. + default: 7 + required: False + state: + description: + - The state to insure that the provided resources are in. + default: 'present' + required: False + choices: ['present', 'absent', 'restore'] + wait: + description: + - Whether to wait for the provisioning tasks to finish before returning. + default: True + required: False + choices: [True, False] +requirements: + - python = 2.7 + - requests >= 2.5.0 + - clc-sdk +notes: + - To use this module, it is required to set the below environment variables which enables access to the + Centurylink Cloud + - CLC_V2_API_USERNAME, the account login id for the centurylink cloud + - CLC_V2_API_PASSWORD, the account password for the centurylink cloud + - Alternatively, the module accepts the API token and account alias. The API token can be generated using the + CLC account login and password via the HTTP api call @ https://api.ctl.io/v2/authentication/login + - CLC_V2_API_TOKEN, the API token generated from https://api.ctl.io/v2/authentication/login + - CLC_ACCT_ALIAS, the account alias associated with the centurylink cloud + - Users can set CLC_V2_API_URL to specify an endpoint for pointing to a different CLC environment. +''' + +EXAMPLES = ''' +# Note - You must set the CLC_V2_API_USERNAME And CLC_V2_API_PASSWD Environment variables before running these examples + +- name: Create server snapshot + clc_server_snapshot: + server_ids: + - UC1TESTSVR01 + - UC1TESTSVR02 + expiration_days: 10 + wait: True + state: present + +- name: Restore server snapshot + clc_server_snapshot: + server_ids: + - UC1TESTSVR01 + - UC1TESTSVR02 + wait: True + state: restore + +- name: Delete server snapshot + clc_server_snapshot: + server_ids: + - UC1TESTSVR01 + - UC1TESTSVR02 + wait: True + state: absent +''' + +__version__ = '${version}' + +from distutils.version import LooseVersion + +try: + import requests +except ImportError: + REQUESTS_FOUND = False +else: + REQUESTS_FOUND = True + +# +# Requires the clc-python-sdk. +# sudo pip install clc-sdk +# +try: + import clc as clc_sdk + from clc import CLCException +except ImportError: + CLC_FOUND = False + clc_sdk = None +else: + CLC_FOUND = True + + +class ClcSnapshot: + + clc = clc_sdk + module = None + + def __init__(self, module): + """ + Construct module + """ + self.module = module + + if not CLC_FOUND: + self.module.fail_json( + msg='clc-python-sdk required for this module') + if not REQUESTS_FOUND: + self.module.fail_json( + msg='requests library is required for this module') + if requests.__version__ and LooseVersion( + requests.__version__) < LooseVersion('2.5.0'): + self.module.fail_json( + msg='requests library version should be >= 2.5.0') + + self._set_user_agent(self.clc) + + def process_request(self): + """ + Process the request - Main Code Path + :return: Returns with either an exit_json or fail_json + """ + p = self.module.params + server_ids = p['server_ids'] + expiration_days = p['expiration_days'] + state = p['state'] + request_list = [] + changed = False + changed_servers = [] + + self._set_clc_credentials_from_env() + if state == 'present': + changed, request_list, changed_servers = self.ensure_server_snapshot_present( + server_ids=server_ids, + expiration_days=expiration_days) + elif state == 'absent': + changed, request_list, changed_servers = self.ensure_server_snapshot_absent( + server_ids=server_ids) + elif state == 'restore': + changed, request_list, changed_servers = self.ensure_server_snapshot_restore( + server_ids=server_ids) + + self._wait_for_requests_to_complete(request_list) + return self.module.exit_json( + changed=changed, + server_ids=changed_servers) + + def ensure_server_snapshot_present(self, server_ids, expiration_days): + """ + Ensures the given set of server_ids have the snapshots created + :param server_ids: The list of server_ids to create the snapshot + :param expiration_days: The number of days to keep the snapshot + :return: (changed, request_list, changed_servers) + changed: A flag indicating whether any change was made + request_list: the list of clc request objects from CLC API call + changed_servers: The list of servers ids that are modified + """ + request_list = [] + changed = False + servers = self._get_servers_from_clc( + server_ids, + 'Failed to obtain server list from the CLC API') + servers_to_change = [ + server for server in servers if len( + server.GetSnapshots()) == 0] + for server in servers_to_change: + changed = True + if not self.module.check_mode: + request = self._create_server_snapshot(server, expiration_days) + request_list.append(request) + changed_servers = [ + server.id for server in servers_to_change if server.id] + return changed, request_list, changed_servers + + def _create_server_snapshot(self, server, expiration_days): + """ + Create the snapshot for the CLC server + :param server: the CLC server object + :param expiration_days: The number of days to keep the snapshot + :return: the create request object from CLC API Call + """ + result = None + try: + result = server.CreateSnapshot( + delete_existing=True, + expiration_days=expiration_days) + except CLCException as ex: + self.module.fail_json(msg='Failed to create snapshot for server : {0}. {1}'.format( + server.id, ex.response_text + )) + return result + + def ensure_server_snapshot_absent(self, server_ids): + """ + Ensures the given set of server_ids have the snapshots removed + :param server_ids: The list of server_ids to delete the snapshot + :return: (changed, request_list, changed_servers) + changed: A flag indicating whether any change was made + request_list: the list of clc request objects from CLC API call + changed_servers: The list of servers ids that are modified + """ + request_list = [] + changed = False + servers = self._get_servers_from_clc( + server_ids, + 'Failed to obtain server list from the CLC API') + servers_to_change = [ + server for server in servers if len( + server.GetSnapshots()) > 0] + for server in servers_to_change: + changed = True + if not self.module.check_mode: + request = self._delete_server_snapshot(server) + request_list.append(request) + changed_servers = [ + server.id for server in servers_to_change if server.id] + return changed, request_list, changed_servers + + def _delete_server_snapshot(self, server): + """ + Delete snapshot for the CLC server + :param server: the CLC server object + :return: the delete snapshot request object from CLC API + """ + result = None + try: + result = server.DeleteSnapshot() + except CLCException as ex: + self.module.fail_json(msg='Failed to delete snapshot for server : {0}. {1}'.format( + server.id, ex.response_text + )) + return result + + def ensure_server_snapshot_restore(self, server_ids): + """ + Ensures the given set of server_ids have the snapshots restored + :param server_ids: The list of server_ids to delete the snapshot + :return: (changed, request_list, changed_servers) + changed: A flag indicating whether any change was made + request_list: the list of clc request objects from CLC API call + changed_servers: The list of servers ids that are modified + """ + request_list = [] + changed = False + servers = self._get_servers_from_clc( + server_ids, + 'Failed to obtain server list from the CLC API') + servers_to_change = [ + server for server in servers if len( + server.GetSnapshots()) > 0] + for server in servers_to_change: + changed = True + if not self.module.check_mode: + request = self._restore_server_snapshot(server) + request_list.append(request) + changed_servers = [ + server.id for server in servers_to_change if server.id] + return changed, request_list, changed_servers + + def _restore_server_snapshot(self, server): + """ + Restore snapshot for the CLC server + :param server: the CLC server object + :return: the restore snapshot request object from CLC API + """ + result = None + try: + result = server.RestoreSnapshot() + except CLCException as ex: + self.module.fail_json(msg='Failed to restore snapshot for server : {0}. {1}'.format( + server.id, ex.response_text + )) + return result + + def _wait_for_requests_to_complete(self, requests_lst): + """ + Waits until the CLC requests are complete if the wait argument is True + :param requests_lst: The list of CLC request objects + :return: none + """ + if not self.module.params['wait']: + return + for request in requests_lst: + request.WaitUntilComplete() + for request_details in request.requests: + if request_details.Status() != 'succeeded': + self.module.fail_json( + msg='Unable to process server snapshot request') + + @staticmethod + def define_argument_spec(): + """ + This function defines the dictionary object required for + package module + :return: the package dictionary object + """ + argument_spec = dict( + server_ids=dict(type='list', required=True), + expiration_days=dict(default=7), + wait=dict(default=True), + state=dict( + default='present', + choices=[ + 'present', + 'absent', + 'restore']), + ) + return argument_spec + + def _get_servers_from_clc(self, server_list, message): + """ + Internal function to fetch list of CLC server objects from a list of server ids + :param server_list: The list of server ids + :param message: The error message to throw in case of any error + :return the list of CLC server objects + """ + try: + return self.clc.v2.Servers(server_list).servers + except CLCException as ex: + return self.module.fail_json(msg=message + ': %s' % ex) + + def _set_clc_credentials_from_env(self): + """ + Set the CLC Credentials on the sdk by reading environment variables + :return: none + """ + env = os.environ + v2_api_token = env.get('CLC_V2_API_TOKEN', False) + v2_api_username = env.get('CLC_V2_API_USERNAME', False) + v2_api_passwd = env.get('CLC_V2_API_PASSWD', False) + clc_alias = env.get('CLC_ACCT_ALIAS', False) + api_url = env.get('CLC_V2_API_URL', False) + + if api_url: + self.clc.defaults.ENDPOINT_URL_V2 = api_url + + if v2_api_token and clc_alias: + self.clc._LOGIN_TOKEN_V2 = v2_api_token + self.clc._V2_ENABLED = True + self.clc.ALIAS = clc_alias + elif v2_api_username and v2_api_passwd: + self.clc.v2.SetCredentials( + api_username=v2_api_username, + api_passwd=v2_api_passwd) + else: + return self.module.fail_json( + msg="You must set the CLC_V2_API_USERNAME and CLC_V2_API_PASSWD " + "environment variables") + + @staticmethod + def _set_user_agent(clc): + if hasattr(clc, 'SetRequestsSession'): + agent_string = "ClcAnsibleModule/" + __version__ + ses = requests.Session() + ses.headers.update({"Api-Client": agent_string}) + ses.headers['User-Agent'] += " " + agent_string + clc.SetRequestsSession(ses) + + +def main(): + """ + Main function + :return: None + """ + module = AnsibleModule( + argument_spec=ClcSnapshot.define_argument_spec(), + supports_check_mode=True + ) + clc_snapshot = ClcSnapshot(module) + clc_snapshot.process_request() + +from ansible.module_utils.basic import * +if __name__ == '__main__': + main()