Ansible module for managing load balancers in Centurylink Cloud
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Siva Popuri
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cloud/centurylink/clc_loadbalancer.py
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cloud/centurylink/clc_loadbalancer.py
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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_loadbalancer
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short_description: Create, Delete shared loadbalancers in CenturyLink Cloud.
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description:
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- An Ansible module to Create, Delete shared loadbalancers in CenturyLink Cloud.
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version_added: "2.0"
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options:
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name:
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description:
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- The name of the loadbalancer
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required: True
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description:
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description:
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- A description for the loadbalancer
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required: False
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default: None
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alias:
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description:
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- The alias of your CLC Account
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required: True
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location:
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description:
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- The location of the datacenter where the load balancer resides in
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required: True
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method:
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description:
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-The balancing method for the load balancer pool
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required: False
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default: None
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choices: ['leastConnection', 'roundRobin']
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persistence:
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description:
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- The persistence method for the load balancer
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required: False
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default: None
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choices: ['standard', 'sticky']
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port:
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description:
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- Port to configure on the public-facing side of the load balancer pool
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required: False
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default: None
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choices: [80, 443]
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nodes:
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description:
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- A list of nodes that needs to be added to the load balancer pool
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required: False
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default: []
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status:
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description:
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- The status of the loadbalancer
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required: False
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default: enabled
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choices: ['enabled', 'disabled']
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state:
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description:
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- Whether to create or delete the load balancer pool
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required: False
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default: present
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choices: ['present', 'absent', 'port_absent', 'nodes_present', 'nodes_absent']
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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: Create Loadbalancer
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hosts: localhost
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connection: local
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tasks:
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- name: Actually Create things
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clc_loadbalancer:
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name: test
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description: test
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alias: TEST
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location: WA1
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port: 443
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nodes:
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- { 'ipAddress': '10.11.22.123', 'privatePort': 80 }
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state: present
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- name: Add node to an existing loadbalancer pool
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hosts: localhost
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connection: local
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tasks:
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- name: Actually Create things
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clc_loadbalancer:
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name: test
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description: test
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alias: TEST
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location: WA1
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port: 443
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nodes:
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- { 'ipAddress': '10.11.22.234', 'privatePort': 80 }
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state: nodes_present
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- name: Remove node from an existing loadbalancer pool
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hosts: localhost
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connection: local
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tasks:
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- name: Actually Create things
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clc_loadbalancer:
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name: test
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description: test
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alias: TEST
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location: WA1
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port: 443
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nodes:
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- { 'ipAddress': '10.11.22.234', 'privatePort': 80 }
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state: nodes_absent
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- name: Delete LoadbalancerPool
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hosts: localhost
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connection: local
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tasks:
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- name: Actually Delete things
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clc_loadbalancer:
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name: test
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description: test
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alias: TEST
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location: WA1
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port: 443
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nodes:
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- { 'ipAddress': '10.11.22.123', 'privatePort': 80 }
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state: port_absent
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- name: Delete Loadbalancer
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hosts: localhost
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connection: local
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tasks:
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- name: Actually Delete things
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clc_loadbalancer:
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name: test
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description: test
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alias: TEST
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location: WA1
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port: 443
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nodes:
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- { 'ipAddress': '10.11.22.123', 'privatePort': 80 }
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state: absent
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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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__version__ = '${version}'
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from time import sleep
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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 APIFailedResponse
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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 ClcLoadBalancer:
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clc = 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.clc = clc_sdk
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self.module = module
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self.lb_dict = {}
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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(
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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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Execute the main code path, and handle the request
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:return: none
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"""
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changed = False
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result_lb = None
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loadbalancer_name = self.module.params.get('name')
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loadbalancer_alias = self.module.params.get('alias')
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loadbalancer_location = self.module.params.get('location')
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loadbalancer_description = self.module.params.get('description')
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loadbalancer_port = self.module.params.get('port')
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loadbalancer_method = self.module.params.get('method')
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loadbalancer_persistence = self.module.params.get('persistence')
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loadbalancer_nodes = self.module.params.get('nodes')
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loadbalancer_status = self.module.params.get('status')
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state = self.module.params.get('state')
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if loadbalancer_description is None:
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loadbalancer_description = loadbalancer_name
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self._set_clc_credentials_from_env()
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self.lb_dict = self._get_loadbalancer_list(
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alias=loadbalancer_alias,
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location=loadbalancer_location)
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if state == 'present':
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changed, result_lb, lb_id = self.ensure_loadbalancer_present(
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name=loadbalancer_name,
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alias=loadbalancer_alias,
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location=loadbalancer_location,
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description=loadbalancer_description,
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status=loadbalancer_status)
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if loadbalancer_port:
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changed, result_pool, pool_id = self.ensure_loadbalancerpool_present(
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lb_id=lb_id,
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alias=loadbalancer_alias,
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location=loadbalancer_location,
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method=loadbalancer_method,
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persistence=loadbalancer_persistence,
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port=loadbalancer_port)
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if loadbalancer_nodes:
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changed, result_nodes = self.ensure_lbpool_nodes_set(
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alias=loadbalancer_alias,
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location=loadbalancer_location,
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name=loadbalancer_name,
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port=loadbalancer_port,
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nodes=loadbalancer_nodes)
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elif state == 'absent':
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changed, result_lb = self.ensure_loadbalancer_absent(
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name=loadbalancer_name,
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alias=loadbalancer_alias,
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location=loadbalancer_location)
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elif state == 'port_absent':
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changed, result_lb = self.ensure_loadbalancerpool_absent(
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alias=loadbalancer_alias,
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location=loadbalancer_location,
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name=loadbalancer_name,
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port=loadbalancer_port)
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elif state == 'nodes_present':
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changed, result_lb = self.ensure_lbpool_nodes_present(
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alias=loadbalancer_alias,
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location=loadbalancer_location,
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name=loadbalancer_name,
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port=loadbalancer_port,
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nodes=loadbalancer_nodes)
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elif state == 'nodes_absent':
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changed, result_lb = self.ensure_lbpool_nodes_absent(
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alias=loadbalancer_alias,
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location=loadbalancer_location,
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name=loadbalancer_name,
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port=loadbalancer_port,
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nodes=loadbalancer_nodes)
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self.module.exit_json(changed=changed, loadbalancer=result_lb)
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def ensure_loadbalancer_present(
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self, name, alias, location, description, status):
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"""
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Checks to see if a load balancer exists and creates one if it does not.
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:param name: Name of loadbalancer
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:param alias: Alias of account
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:param location: Datacenter
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:param description: Description of loadbalancer
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:param status: Enabled / Disabled
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:return: (changed, result, lb_id)
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changed: Boolean whether a change was made
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result: The result object from the CLC load balancer request
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lb_id: The load balancer id
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"""
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changed = False
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result = name
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lb_id = self._loadbalancer_exists(name=name)
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if not lb_id:
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if not self.module.check_mode:
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result = self.create_loadbalancer(name=name,
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alias=alias,
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location=location,
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description=description,
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status=status)
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lb_id = result.get('id')
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changed = True
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return changed, result, lb_id
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def ensure_loadbalancerpool_present(
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self, lb_id, alias, location, method, persistence, port):
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"""
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Checks to see if a load balancer pool exists and creates one if it does not.
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:param lb_id: The loadbalancer id
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:param alias: The account alias
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:param location: the datacenter the load balancer resides in
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:param method: the load balancing method
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:param persistence: the load balancing persistence type
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:param port: the port that the load balancer will listen on
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:return: (changed, group, pool_id) -
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changed: Boolean whether a change was made
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result: The result from the CLC API call
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pool_id: The string id of the load balancer pool
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"""
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changed = False
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result = port
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if not lb_id:
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return changed, None, None
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pool_id = self._loadbalancerpool_exists(
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alias=alias,
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location=location,
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port=port,
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lb_id=lb_id)
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if not pool_id:
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if not self.module.check_mode:
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result = self.create_loadbalancerpool(
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alias=alias,
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location=location,
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lb_id=lb_id,
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method=method,
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persistence=persistence,
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port=port)
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pool_id = result.get('id')
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changed = True
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return changed, result, pool_id
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def ensure_loadbalancer_absent(self, name, alias, location):
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"""
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Checks to see if a load balancer exists and deletes it if it does
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:param name: Name of the load balancer
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:param alias: Alias of account
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:param location: Datacenter
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:return: (changed, result)
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changed: Boolean whether a change was made
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result: The result from the CLC API Call
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"""
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changed = False
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result = name
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lb_exists = self._loadbalancer_exists(name=name)
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if lb_exists:
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if not self.module.check_mode:
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result = self.delete_loadbalancer(alias=alias,
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location=location,
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name=name)
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changed = True
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return changed, result
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def ensure_loadbalancerpool_absent(self, alias, location, name, port):
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"""
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Checks to see if a load balancer pool exists and deletes it if it does
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:param alias: The account alias
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:param location: the datacenter the load balancer resides in
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:param name: the name of the load balancer
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:param port: the port that the load balancer listens on
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:return: (changed, result) -
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changed: Boolean whether a change was made
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result: The result from the CLC API call
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"""
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changed = False
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result = None
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lb_exists = self._loadbalancer_exists(name=name)
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if lb_exists:
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lb_id = self._get_loadbalancer_id(name=name)
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pool_id = self._loadbalancerpool_exists(
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alias=alias,
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location=location,
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port=port,
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lb_id=lb_id)
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if pool_id:
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changed = True
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if not self.module.check_mode:
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result = self.delete_loadbalancerpool(
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alias=alias,
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location=location,
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lb_id=lb_id,
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pool_id=pool_id)
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else:
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result = "Pool doesn't exist"
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else:
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result = "LB Doesn't Exist"
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return changed, result
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def ensure_lbpool_nodes_set(self, alias, location, name, port, nodes):
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"""
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Checks to see if the provided list of nodes exist for the pool
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and set the nodes if any in the list those doesn't exist
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:param alias: The account alias
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:param location: the datacenter the load balancer resides in
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:param name: the name of the load balancer
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:param port: the port that the load balancer will listen on
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:param nodes: The list of nodes to be updated to the pool
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:return: (changed, result) -
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changed: Boolean whether a change was made
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result: The result from the CLC API call
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"""
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result = {}
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changed = False
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lb_exists = self._loadbalancer_exists(name=name)
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if lb_exists:
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lb_id = self._get_loadbalancer_id(name=name)
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pool_id = self._loadbalancerpool_exists(
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alias=alias,
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location=location,
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port=port,
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lb_id=lb_id)
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if pool_id:
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nodes_exist = self._loadbalancerpool_nodes_exists(alias=alias,
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location=location,
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lb_id=lb_id,
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pool_id=pool_id,
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nodes_to_check=nodes)
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if not nodes_exist:
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changed = True
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result = self.set_loadbalancernodes(alias=alias,
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location=location,
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lb_id=lb_id,
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pool_id=pool_id,
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nodes=nodes)
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else:
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result = "Pool doesn't exist"
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else:
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result = "Load balancer doesn't Exist"
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return changed, result
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def ensure_lbpool_nodes_present(self, alias, location, name, port, nodes):
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"""
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Checks to see if the provided list of nodes exist for the pool and add the missing nodes to the pool
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:param alias: The account alias
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:param location: the datacenter the load balancer resides in
|
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:param name: the name of the load balancer
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:param port: the port that the load balancer will listen on
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:param nodes: the list of nodes to be added
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:return: (changed, result) -
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changed: Boolean whether a change was made
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||||
result: The result from the CLC API call
|
||||
"""
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changed = False
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lb_exists = self._loadbalancer_exists(name=name)
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if lb_exists:
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lb_id = self._get_loadbalancer_id(name=name)
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pool_id = self._loadbalancerpool_exists(
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alias=alias,
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location=location,
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port=port,
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lb_id=lb_id)
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if pool_id:
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changed, result = self.add_lbpool_nodes(alias=alias,
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location=location,
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lb_id=lb_id,
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pool_id=pool_id,
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nodes_to_add=nodes)
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else:
|
||||
result = "Pool doesn't exist"
|
||||
else:
|
||||
result = "Load balancer doesn't Exist"
|
||||
return changed, result
|
||||
|
||||
def ensure_lbpool_nodes_absent(self, alias, location, name, port, nodes):
|
||||
"""
|
||||
Checks to see if the provided list of nodes exist for the pool and removes them if found any
|
||||
:param alias: The account alias
|
||||
:param location: the datacenter the load balancer resides in
|
||||
:param name: the name of the load balancer
|
||||
:param port: the port that the load balancer will listen on
|
||||
:param nodes: the list of nodes to be removed
|
||||
:return: (changed, result) -
|
||||
changed: Boolean whether a change was made
|
||||
result: The result from the CLC API call
|
||||
"""
|
||||
changed = False
|
||||
lb_exists = self._loadbalancer_exists(name=name)
|
||||
if lb_exists:
|
||||
lb_id = self._get_loadbalancer_id(name=name)
|
||||
pool_id = self._loadbalancerpool_exists(
|
||||
alias=alias,
|
||||
location=location,
|
||||
port=port,
|
||||
lb_id=lb_id)
|
||||
if pool_id:
|
||||
changed, result = self.remove_lbpool_nodes(alias=alias,
|
||||
location=location,
|
||||
lb_id=lb_id,
|
||||
pool_id=pool_id,
|
||||
nodes_to_remove=nodes)
|
||||
else:
|
||||
result = "Pool doesn't exist"
|
||||
else:
|
||||
result = "Load balancer doesn't Exist"
|
||||
return changed, result
|
||||
|
||||
def create_loadbalancer(self, name, alias, location, description, status):
|
||||
"""
|
||||
Create a loadbalancer w/ params
|
||||
:param name: Name of loadbalancer
|
||||
:param alias: Alias of account
|
||||
:param location: Datacenter
|
||||
:param description: Description for loadbalancer to be created
|
||||
:param status: Enabled / Disabled
|
||||
:return: result: The result from the CLC API call
|
||||
"""
|
||||
result = None
|
||||
try:
|
||||
result = self.clc.v2.API.Call('POST',
|
||||
'/v2/sharedLoadBalancers/%s/%s' % (alias,
|
||||
location),
|
||||
json.dumps({"name": name,
|
||||
"description": description,
|
||||
"status": status}))
|
||||
sleep(1)
|
||||
except APIFailedResponse as e:
|
||||
self.module.fail_json(
|
||||
msg='Unable to create load balancer "{0}". {1}'.format(
|
||||
name, str(e.response_text)))
|
||||
return result
|
||||
|
||||
def create_loadbalancerpool(
|
||||
self, alias, location, lb_id, method, persistence, port):
|
||||
"""
|
||||
Creates a pool on the provided load balancer
|
||||
:param alias: the account alias
|
||||
:param location: the datacenter the load balancer resides in
|
||||
:param lb_id: the id string of the load balancer
|
||||
:param method: the load balancing method
|
||||
:param persistence: the load balancing persistence type
|
||||
:param port: the port that the load balancer will listen on
|
||||
:return: result: The result from the create API call
|
||||
"""
|
||||
result = None
|
||||
try:
|
||||
result = self.clc.v2.API.Call(
|
||||
'POST', '/v2/sharedLoadBalancers/%s/%s/%s/pools' %
|
||||
(alias, location, lb_id), json.dumps(
|
||||
{
|
||||
"port": port, "method": method, "persistence": persistence
|
||||
}))
|
||||
except APIFailedResponse as e:
|
||||
self.module.fail_json(
|
||||
msg='Unable to create pool for load balancer id "{0}". {1}'.format(
|
||||
lb_id, str(e.response_text)))
|
||||
return result
|
||||
|
||||
def delete_loadbalancer(self, alias, location, name):
|
||||
"""
|
||||
Delete CLC loadbalancer
|
||||
:param alias: Alias for account
|
||||
:param location: Datacenter
|
||||
:param name: Name of the loadbalancer to delete
|
||||
:return: result: The result from the CLC API call
|
||||
"""
|
||||
result = None
|
||||
lb_id = self._get_loadbalancer_id(name=name)
|
||||
try:
|
||||
result = self.clc.v2.API.Call(
|
||||
'DELETE', '/v2/sharedLoadBalancers/%s/%s/%s' %
|
||||
(alias, location, lb_id))
|
||||
except APIFailedResponse as e:
|
||||
self.module.fail_json(
|
||||
msg='Unable to delete load balancer "{0}". {1}'.format(
|
||||
name, str(e.response_text)))
|
||||
return result
|
||||
|
||||
def delete_loadbalancerpool(self, alias, location, lb_id, pool_id):
|
||||
"""
|
||||
Delete the pool on the provided load balancer
|
||||
:param alias: The account alias
|
||||
:param location: the datacenter the load balancer resides in
|
||||
:param lb_id: the id string of the load balancer
|
||||
:param pool_id: the id string of the load balancer pool
|
||||
:return: result: The result from the delete API call
|
||||
"""
|
||||
result = None
|
||||
try:
|
||||
result = self.clc.v2.API.Call(
|
||||
'DELETE', '/v2/sharedLoadBalancers/%s/%s/%s/pools/%s' %
|
||||
(alias, location, lb_id, pool_id))
|
||||
except APIFailedResponse as e:
|
||||
self.module.fail_json(
|
||||
msg='Unable to delete pool for load balancer id "{0}". {1}'.format(
|
||||
lb_id, str(e.response_text)))
|
||||
return result
|
||||
|
||||
def _get_loadbalancer_id(self, name):
|
||||
"""
|
||||
Retrieves unique ID of loadbalancer
|
||||
:param name: Name of loadbalancer
|
||||
:return: Unique ID of the loadbalancer
|
||||
"""
|
||||
id = None
|
||||
for lb in self.lb_dict:
|
||||
if lb.get('name') == name:
|
||||
id = lb.get('id')
|
||||
return id
|
||||
|
||||
def _get_loadbalancer_list(self, alias, location):
|
||||
"""
|
||||
Retrieve a list of loadbalancers
|
||||
:param alias: Alias for account
|
||||
:param location: Datacenter
|
||||
:return: JSON data for all loadbalancers at datacenter
|
||||
"""
|
||||
result = None
|
||||
try:
|
||||
result = self.clc.v2.API.Call(
|
||||
'GET', '/v2/sharedLoadBalancers/%s/%s' % (alias, location))
|
||||
except APIFailedResponse as e:
|
||||
self.module.fail_json(
|
||||
msg='Unable to fetch load balancers for account: {0}. {1}'.format(
|
||||
alias, str(e.response_text)))
|
||||
return result
|
||||
|
||||
def _loadbalancer_exists(self, name):
|
||||
"""
|
||||
Verify a loadbalancer exists
|
||||
:param name: Name of loadbalancer
|
||||
:return: False or the ID of the existing loadbalancer
|
||||
"""
|
||||
result = False
|
||||
|
||||
for lb in self.lb_dict:
|
||||
if lb.get('name') == name:
|
||||
result = lb.get('id')
|
||||
return result
|
||||
|
||||
def _loadbalancerpool_exists(self, alias, location, port, lb_id):
|
||||
"""
|
||||
Checks to see if a pool exists on the specified port on the provided load balancer
|
||||
:param alias: the account alias
|
||||
:param location: the datacenter the load balancer resides in
|
||||
:param port: the port to check and see if it exists
|
||||
:param lb_id: the id string of the provided load balancer
|
||||
:return: result: The id string of the pool or False
|
||||
"""
|
||||
result = False
|
||||
try:
|
||||
pool_list = self.clc.v2.API.Call(
|
||||
'GET', '/v2/sharedLoadBalancers/%s/%s/%s/pools' %
|
||||
(alias, location, lb_id))
|
||||
except APIFailedResponse as e:
|
||||
return self.module.fail_json(
|
||||
msg='Unable to fetch the load balancer pools for for load balancer id: {0}. {1}'.format(
|
||||
lb_id, str(e.response_text)))
|
||||
for pool in pool_list:
|
||||
if int(pool.get('port')) == int(port):
|
||||
result = pool.get('id')
|
||||
return result
|
||||
|
||||
def _loadbalancerpool_nodes_exists(
|
||||
self, alias, location, lb_id, pool_id, nodes_to_check):
|
||||
"""
|
||||
Checks to see if a set of nodes exists on the specified port on the provided load balancer
|
||||
:param alias: the account alias
|
||||
:param location: the datacenter the load balancer resides in
|
||||
:param lb_id: the id string of the provided load balancer
|
||||
:param pool_id: the id string of the load balancer pool
|
||||
:param nodes_to_check: the list of nodes to check for
|
||||
:return: result: True / False indicating if the given nodes exist
|
||||
"""
|
||||
result = False
|
||||
nodes = self._get_lbpool_nodes(alias, location, lb_id, pool_id)
|
||||
for node in nodes_to_check:
|
||||
if not node.get('status'):
|
||||
node['status'] = 'enabled'
|
||||
if node in nodes:
|
||||
result = True
|
||||
else:
|
||||
result = False
|
||||
return result
|
||||
|
||||
def set_loadbalancernodes(self, alias, location, lb_id, pool_id, nodes):
|
||||
"""
|
||||
Updates nodes to the provided pool
|
||||
:param alias: the account alias
|
||||
:param location: the datacenter the load balancer resides in
|
||||
:param lb_id: the id string of the load balancer
|
||||
:param pool_id: the id string of the pool
|
||||
:param nodes: a list of dictionaries containing the nodes to set
|
||||
:return: result: The result from the CLC API call
|
||||
"""
|
||||
result = None
|
||||
if not lb_id:
|
||||
return result
|
||||
if not self.module.check_mode:
|
||||
try:
|
||||
result = self.clc.v2.API.Call('PUT',
|
||||
'/v2/sharedLoadBalancers/%s/%s/%s/pools/%s/nodes'
|
||||
% (alias, location, lb_id, pool_id), json.dumps(nodes))
|
||||
except APIFailedResponse as e:
|
||||
self.module.fail_json(
|
||||
msg='Unable to set nodes for the load balancer pool id "{0}". {1}'.format(
|
||||
pool_id, str(e.response_text)))
|
||||
return result
|
||||
|
||||
def add_lbpool_nodes(self, alias, location, lb_id, pool_id, nodes_to_add):
|
||||
"""
|
||||
Add nodes to the provided pool
|
||||
:param alias: the account alias
|
||||
:param location: the datacenter the load balancer resides in
|
||||
:param lb_id: the id string of the load balancer
|
||||
:param pool_id: the id string of the pool
|
||||
:param nodes_to_add: a list of dictionaries containing the nodes to add
|
||||
:return: (changed, result) -
|
||||
changed: Boolean whether a change was made
|
||||
result: The result from the CLC API call
|
||||
"""
|
||||
changed = False
|
||||
result = {}
|
||||
nodes = self._get_lbpool_nodes(alias, location, lb_id, pool_id)
|
||||
for node in nodes_to_add:
|
||||
if not node.get('status'):
|
||||
node['status'] = 'enabled'
|
||||
if not node in nodes:
|
||||
changed = True
|
||||
nodes.append(node)
|
||||
if changed == True and not self.module.check_mode:
|
||||
result = self.set_loadbalancernodes(
|
||||
alias,
|
||||
location,
|
||||
lb_id,
|
||||
pool_id,
|
||||
nodes)
|
||||
return changed, result
|
||||
|
||||
def remove_lbpool_nodes(
|
||||
self, alias, location, lb_id, pool_id, nodes_to_remove):
|
||||
"""
|
||||
Removes nodes from the provided pool
|
||||
:param alias: the account alias
|
||||
:param location: the datacenter the load balancer resides in
|
||||
:param lb_id: the id string of the load balancer
|
||||
:param pool_id: the id string of the pool
|
||||
:param nodes_to_remove: a list of dictionaries containing the nodes to remove
|
||||
:return: (changed, result) -
|
||||
changed: Boolean whether a change was made
|
||||
result: The result from the CLC API call
|
||||
"""
|
||||
changed = False
|
||||
result = {}
|
||||
nodes = self._get_lbpool_nodes(alias, location, lb_id, pool_id)
|
||||
for node in nodes_to_remove:
|
||||
if not node.get('status'):
|
||||
node['status'] = 'enabled'
|
||||
if node in nodes:
|
||||
changed = True
|
||||
nodes.remove(node)
|
||||
if changed == True and not self.module.check_mode:
|
||||
result = self.set_loadbalancernodes(
|
||||
alias,
|
||||
location,
|
||||
lb_id,
|
||||
pool_id,
|
||||
nodes)
|
||||
return changed, result
|
||||
|
||||
def _get_lbpool_nodes(self, alias, location, lb_id, pool_id):
|
||||
"""
|
||||
Return the list of nodes available to the provided load balancer pool
|
||||
:param alias: the account alias
|
||||
:param location: the datacenter the load balancer resides in
|
||||
:param lb_id: the id string of the load balancer
|
||||
:param pool_id: the id string of the pool
|
||||
:return: result: The list of nodes
|
||||
"""
|
||||
result = None
|
||||
try:
|
||||
result = self.clc.v2.API.Call('GET',
|
||||
'/v2/sharedLoadBalancers/%s/%s/%s/pools/%s/nodes'
|
||||
% (alias, location, lb_id, pool_id))
|
||||
except APIFailedResponse as e:
|
||||
self.module.fail_json(
|
||||
msg='Unable to fetch list of available nodes for load balancer pool id: {0}. {1}'.format(
|
||||
pool_id, str(e.response_text)))
|
||||
return result
|
||||
|
||||
@staticmethod
|
||||
def define_argument_spec():
|
||||
"""
|
||||
Define the argument spec for the ansible module
|
||||
:return: argument spec dictionary
|
||||
"""
|
||||
argument_spec = dict(
|
||||
name=dict(required=True),
|
||||
description=dict(default=None),
|
||||
location=dict(required=True, default=None),
|
||||
alias=dict(required=True, default=None),
|
||||
port=dict(choices=[80, 443]),
|
||||
method=dict(choices=['leastConnection', 'roundRobin']),
|
||||
persistence=dict(choices=['standard', 'sticky']),
|
||||
nodes=dict(type='list', default=[]),
|
||||
status=dict(default='enabled', choices=['enabled', 'disabled']),
|
||||
state=dict(
|
||||
default='present',
|
||||
choices=[
|
||||
'present',
|
||||
'absent',
|
||||
'port_absent',
|
||||
'nodes_present',
|
||||
'nodes_absent'])
|
||||
)
|
||||
return argument_spec
|
||||
|
||||
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():
|
||||
"""
|
||||
The main function. Instantiates the module and calls process_request.
|
||||
:return: none
|
||||
"""
|
||||
module = AnsibleModule(argument_spec=ClcLoadBalancer.define_argument_spec(),
|
||||
supports_check_mode=True)
|
||||
clc_loadbalancer = ClcLoadBalancer(module)
|
||||
clc_loadbalancer.process_request()
|
||||
|
||||
from ansible.module_utils.basic import * # pylint: disable=W0614
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
Loading…
Reference in a new issue