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#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2013, Chatham Financial <oss@chathamfinancial.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = '''
---
module: rabbitmq_parameter
short_description: Adds or removes parameters to RabbitMQ
description:
- Manage dynamic, cluster-wide parameters for RabbitMQ
version_added: "1.1"
author: '"Chris Hoffman (@chrishoffman)"'
options:
component:
description:
- Name of the component of which the parameter is being set
required: true
default: null
name:
description:
- Name of the parameter being set
required: true
default: null
value:
description:
- Value of the parameter, as a JSON term
required: false
default: null
vhost:
description:
- vhost to apply access privileges.
required: false
default: /
node:
description:
- erlang node name of the rabbit we wish to configure
required: false
default: rabbit
version_added: "1.2"
state:
description:
- Specify if user is to be added or removed
required: false
default: present
choices: [ 'present', 'absent']
'''
EXAMPLES = """
# Set the federation parameter 'local_username' to a value of 'guest' (in quotes)
- rabbitmq_parameter:
component: federation
name: local-username
value: '"guest"'
state: present
"""
import json
from ansible.module_utils.basic import AnsibleModule
class RabbitMqParameter(object):
def __init__(self, module, component, name, value, vhost, node):
self.module = module
self.component = component
self.name = name
self.value = value
self.vhost = vhost
self.node = node
self._value = None
self._rabbitmqctl = module.get_bin_path('rabbitmqctl', True)
def _exec(self, args, run_in_check_mode=False):
if not self.module.check_mode or (self.module.check_mode and run_in_check_mode):
cmd = [self._rabbitmqctl, '-q', '-n', self.node]
rc, out, err = self.module.run_command(cmd + args, check_rc=True)
return out.splitlines()
return list()
def get(self):
parameters = self._exec(['list_parameters', '-p', self.vhost], True)
for param_item in parameters:
component, name, value = param_item.split('\t')
if component == self.component and name == self.name:
self._value = json.loads(value)
return True
return False
def set(self):
self._exec(['set_parameter',
'-p',
self.vhost,
self.component,
self.name,
json.dumps(self.value)])
def delete(self):
self._exec(['clear_parameter', '-p', self.vhost, self.component, self.name])
def has_modifications(self):
return self.value != self._value
def main():
arg_spec = dict(
component=dict(required=True),
name=dict(required=True),
value=dict(default=None),
vhost=dict(default='/'),
state=dict(default='present', choices=['present', 'absent']),
node=dict(default='rabbit')
)
module = AnsibleModule(
argument_spec=arg_spec,
supports_check_mode=True
)
component = module.params['component']
name = module.params['name']
value = module.params['value']
if isinstance(value, str):
value = json.loads(value)
vhost = module.params['vhost']
state = module.params['state']
node = module.params['node']
result = dict(changed=False)
rabbitmq_parameter = RabbitMqParameter(module, component, name, value, vhost, node)
if rabbitmq_parameter.get():
if state == 'absent':
rabbitmq_parameter.delete()
result['changed'] = True
else:
if rabbitmq_parameter.has_modifications():
rabbitmq_parameter.set()
result['changed'] = True
elif state == 'present':
rabbitmq_parameter.set()
result['changed'] = True
result['component'] = component
result['name'] = name
result['vhost'] = vhost
result['state'] = state
module.exit_json(**result)
if __name__ == '__main__':
main()
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