add module rabbitmq_queue
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Manuel Sousa
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messaging/rabbitmq_queue.py
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messaging/rabbitmq_queue.py
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#!/usr/bin/python
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DOCUMENTATION = '''
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module: rabbitmq_queue
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author: Manuel Sousa
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version_added: 1.5.4
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short_description: This module manages rabbitMQ queues
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description:
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- This module uses rabbitMQ Rest API to create/delete queues
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requirements: [ python requests ]
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options:
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name:
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description:
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- Name of the queue to create
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required: true
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state:
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description:
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- Whether the queue should be present or absent
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- Only present implemented atm
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choices: [ "present", "absent" ]
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required: false
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default: present
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login_user:
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description:
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- rabbitMQ user for connection
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required: false
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default: guest
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login_password:
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description:
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- rabbitMQ password for connection
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required: false
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default: false
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login_host:
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description:
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- rabbitMQ host for connection
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required: false
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default: localhost
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login_port:
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description:
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- rabbitMQ management api port
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required: false
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default: 15672
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vhost:
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description:
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- rabbitMQ virtual host
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required: false
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default: "/"
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durable:
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description:
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- whether queue is durable or not
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required: false
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choices: [ "yes", "no" ]
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default: yes
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autoDelete:
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description:
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- if the queue should delete itself after all queues/queues unbound from it
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required: false
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choices: [ "yes", "no" ]
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default: no
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messageTTL:
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description:
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- How long a message can live in queue before it is discarded (milliseconds)
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required: False
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autoExpires:
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description:
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- How long a queue can be unused before it is automatically deleted (milliseconds)
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required: false
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maxLength:
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description:
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- How many messages can the queue contain before it starts rejecting
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required: false
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deadLetterExchange:
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description:
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- Optional name of an exchange to which messages will be republished if they
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- are rejected or expire
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required: false
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deadLetterRoutingKey:
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description:
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- Optional replacement routing key to use when a message is dead-lettered.
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- Original routing key will be used if unset
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required: false
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arguments:
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description:
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- extra arguments for queue. If defined this argument is a key/value dictionary
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required: false
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'''
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EXAMPLES = '''
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# Create a queue
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- rabbitmq_queue: name=myQueue
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# Create a queue on remote host
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- rabbitmq_queue: name=myRemoteQueue login_user=user login_password=secret login_host=remote.example.org
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'''
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import requests
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import urllib
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import json
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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state = dict(default='present', choices=['present', 'absent'], type='str'),
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name = dict(required=True, type='str'),
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login_user = dict(default='guest', type='str'),
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login_password = dict(default='guest', type='str'),
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login_host = dict(default='localhost', type='str'),
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login_port = dict(default='15672', type='str'),
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vhost = dict(default='/', type='str'),
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durable = dict(default=True, choices=BOOLEANS, type='bool'),
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autoDelete = dict(default=False, choices=BOOLEANS, type='bool'),
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messageTTL = dict(default=None, type='int'),
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autoExpire = dict(default=None, type='int'),
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maxLength = dict(default=None, type='int'),
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deadLetterExchange = dict(default=None, type='str'),
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deadLetterRoutingKey = dict(default=None, type='str'),
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arguments = dict(default=dict(), type='dict')
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),
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supports_check_mode = True
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)
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url = "http://%s:%s/api/queues/%s/%s" % (
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module.params['login_host'],
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module.params['login_port'],
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urllib.quote(module.params['vhost'],''),
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module.params['name']
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)
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# Check if queue already exists
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r = requests.get( url, auth=(module.params['login_user'],module.params['login_password']))
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if r.status_code==200:
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queueExists = True
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response = r.json()
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elif r.status_code==404:
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queueExists = False
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response = r.text
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else:
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module.fail_json(
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msg = "Invalid response from RESTAPI when trying to check if queue exists",
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details = r.text
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)
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changeRequired = not queueExists if module.params['state']=='present' else queueExists
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# Check if attributes change on existing queue
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if not changeRequired and r.status_code==200 and module.params['state'] == 'present':
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if not (
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response['durable'] == module.params['durable'] and
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response['auto_delete'] == module.params['autoDelete'] and
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(
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response['arguments']['x-message-ttl'] == module.params['messageTTL'] if 'x-message-ttl' in response['arguments'] else module.params['messageTTL'] is None
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) and
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(
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response['arguments']['x-expires'] == module.params['autoExpire'] if 'x-expires' in response['arguments'] else module.params['autoExpire'] is None
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) and
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(
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response['arguments']['x-max-length'] == module.params['maxLength'] if 'x-max-length' in response['arguments'] else module.params['maxLength'] is None
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) and
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(
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response['arguments']['x-dead-letter-exchange'] == module.params['deadLetterExchange'] if 'x-dead-letter-exchange' in response['arguments'] else module.params['deadLetterExchange'] is None
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) and
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(
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response['arguments']['x-dead-letter-routing-key'] == module.params['deadLetterRoutingKey'] if 'x-dead-letter-routing-key' in response['arguments'] else module.params['deadLetterRoutingKey'] is None
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)
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):
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module.fail_json(
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msg = "RabbitMQ RESTAPI doesn't support attribute changes for existing queues",
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details = "XPTO",
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src = json.dumps(response['arguments']),
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dest = json.dumps(module.params)
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)
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# Copy parameters to arguments as used by RabbitMQ
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for k,v in {
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'messageTTL': 'x-message-ttl',
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'autoExpire': 'x-expires',
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'maxLength': 'x-max-length',
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'deadLetterExchange': 'x-dead-letter-exchange',
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'deadLetterRoutingKey': 'x-dead-letter-routing-key'
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}.items():
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if module.params[k]:
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module.params['arguments'][v] = module.params[k]
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# Exit if check_mode
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if module.check_mode:
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module.exit_json(
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changed= changeRequired,
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result = "Success",
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name = module.params['name'],
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details = response,
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arguments = module.params['arguments']
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)
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# Do changes
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if changeRequired:
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if module.params['state'] == 'present':
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r = requests.put(
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url,
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auth = (module.params['login_user'],module.params['login_password']),
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headers = { "content-type": "application/json"},
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data = json.dumps({
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"durable": module.params['durable'],
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"auto_delete": module.params['autoDelete'],
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"arguments": module.params['arguments']
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})
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)
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elif module.params['state'] == 'absent':
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r = requests.delete( url, auth = (module.params['login_user'],module.params['login_password']))
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if r.status_code == 204:
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module.exit_json(
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changed = True,
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result = "Success",
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name = module.params['name']
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)
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else:
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module.fail_json(
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msg = "Error creating queue",
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status = r.status_code,
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details = r.text
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)
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else:
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module.exit_json(
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changed = False,
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result = "Success",
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name = module.params['name']
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)
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# import module snippets
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from ansible.module_utils.basic import *
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main()
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