Module for managing Rackspace Cloud Databases instances.
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Simon JAILLET
Michael DeHaan
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1 changed files with 293 additions and 0 deletions
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library/cloud/rax_cdb
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library/cloud/rax_cdb
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#!/usr/bin/python -tt
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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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DOCUMENTATION = '''
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---
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module: rax_cdb
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short_description: create / delete or resize a Rackspace Cloud Databases instance
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description:
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- creates / deletes or resize a Rackspace Cloud Databases instance
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and optionally waits for it to be 'running'. The name option needs to be unique since
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it's used to identify the instance.
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version_added: "1.6"
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options:
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api_key:
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description:
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- Rackspace API key (overrides I(credentials))
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aliases:
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- password
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credentials:
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description:
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- File to find the Rackspace credentials in (ignored if I(api_key) and
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I(username) are provided)
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default: null
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aliases:
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- creds_file
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region:
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description:
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- Region to create an instance in
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default: DFW
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username:
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description:
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- Rackspace username (overrides I(credentials))
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name:
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description:
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- Name of the databases server instance
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default: null
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flavor:
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description:
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- flavor to use for the instance 1 to 6 (i.e. 512MB to 16GB)
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default: 1
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volume:
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description:
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- Volume size of the database 1-150GB
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default: 2
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state:
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description:
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- Indicate desired state of the resource
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choices: ['present', 'absent']
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default: present
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wait:
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description:
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- wait for the instance to be in state 'running' before returning
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default: "no"
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choices: [ "yes", "no" ]
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wait_timeout:
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description:
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- how long before wait gives up, in seconds
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default: 300
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requirements: [ "pyrax" ]
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author: Simon JAILLET
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notes:
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- The following environment variables can be used, C(RAX_USERNAME),
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C(RAX_API_KEY), C(RAX_CREDS_FILE), C(RAX_CREDENTIALS), C(RAX_REGION).
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- C(RAX_CREDENTIALS) and C(RAX_CREDS_FILE) points to a credentials file
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appropriate for pyrax. See U(https://github.com/rackspace/pyrax/blob/master/docs/getting_started.md#authenticating)
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- C(RAX_USERNAME) and C(RAX_API_KEY) obviate the use of a credentials file
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- C(RAX_REGION) defines a Rackspace Public Cloud region (DFW, ORD, LON, ...)
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'''
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EXAMPLES = '''
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- name: Build a Cloud Databases
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gather_facts: False
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tasks:
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- name: Server build request
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local_action:
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module: rax_cdb
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credentials: ~/.raxpub
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region: IAD
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name: db-server1
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flavor: 1
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volume: 2
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wait: yes
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state: present
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register: rax_db_server
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'''
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import sys
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from types import NoneType
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try:
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import pyrax
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except ImportError:
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print("failed=True msg='pyrax is required for this module'")
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sys.exit(1)
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NON_CALLABLES = (basestring, bool, dict, int, list, NoneType)
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def to_dict(obj):
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instance = {}
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for key in dir(obj):
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value = getattr(obj, key)
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if (isinstance(value, NON_CALLABLES) and not key.startswith('_')):
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instance[key] = value
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return instance
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def find_instance(name):
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cdb = pyrax.cloud_databases
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instances = cdb.list()
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if instances:
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for instance in instances:
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if instance.name == name:
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return instance
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return False
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def save_instance(module, name, flavor, volume, wait, wait_timeout):
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for arg, value in dict(name=name, flavor=flavor,
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volume=volume).iteritems():
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if not value:
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module.fail_json(msg='%s is required for the "rax_cdb"'
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' module' % arg)
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if not (volume >= 1 and volume <= 150):
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module.fail_json(msg='volume is required to be between 1 and 150')
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cdb = pyrax.cloud_databases
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flavors = []
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for item in cdb.list_flavors():
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flavors.append(item.id)
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if not (flavor in flavors):
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module.fail_json(msg='unexisting flavor reference "%s"' % str(flavor))
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changed = False
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instance = find_instance(name)
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if not instance:
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action = 'create'
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try:
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instance = cdb.create(name=name, flavor=flavor, volume=volume)
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except Exception, e:
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module.fail_json(msg='%s' % e.message)
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else:
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changed = True
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else:
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action = None
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if instance.volume.size != volume:
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action = 'resize'
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if instance.volume.size > volume:
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module.fail_json(
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changed=False,
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action=action,
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msg='The new volume size must be larger than the'
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' current volume size',
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cdb=to_dict(instance)
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)
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instance.resize_volume(volume)
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changed = True
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if int(instance.flavor.id) != flavor:
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action = 'resize'
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pyrax.utils.wait_until(
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instance,
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'status',
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'ACTIVE',
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attempts=wait_timeout
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)
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instance.resize(flavor)
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changed = True
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if wait:
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pyrax.utils.wait_until(
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instance,
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'status',
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'ACTIVE',
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attempts=wait_timeout
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)
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if wait and instance.status != 'ACTIVE':
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module.fail_json(
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changed=changed,
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action=action,
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cdb=to_dict(instance),
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msg='Timeout waiting for "%s" databases instance to be '
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'created' % name
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)
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module.exit_json(changed=changed, action=action, cdb=to_dict(instance))
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def delete_instance(module, name, wait, wait_timeout):
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if not name:
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module.fail_json(msg='name is required for the "rax_cdb" module')
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changed = False
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instance = find_instance(name)
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if not instance:
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module.exit_json(changed=False, action='delete')
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try:
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instance.delete()
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except Exception, e:
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module.fail_json(msg='%s' % e.message)
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else:
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changed = True
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if wait:
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pyrax.utils.wait_until(
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instance,
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'status',
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'SHUTDOWN',
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attempts=wait_timeout
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)
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if wait and instance.status != 'SHUTDOWN':
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module.fail_json(
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changed=changed,
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action='delete',
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cdb=to_dict(instance),
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msg='Timeout waiting for "%s" databases instance to be '
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'deleted' % name
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)
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module.exit_json(changed=changed, action='delete', cdb=to_dict(instance))
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def rax_cdb(module, state, name, flavor, volume, wait, wait_timeout):
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# act on the state
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if state == 'present':
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save_instance(module, name, flavor, volume, wait, wait_timeout)
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elif state == 'absent':
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delete_instance(module, name, wait, wait_timeout)
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def main():
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argument_spec = rax_argument_spec()
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argument_spec.update(
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dict(
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name=dict(type='str', required=True),
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flavor=dict(type='int', default=1),
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volume=dict(type='int', default=2),
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state=dict(default='present', choices=['present', 'absent']),
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wait=dict(type='bool', default=False),
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wait_timeout=dict(type='int', default=300),
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)
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)
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module = AnsibleModule(
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argument_spec=argument_spec,
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required_together=rax_required_together(),
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)
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name = module.params.get('name')
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flavor = module.params.get('flavor')
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volume = module.params.get('volume')
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state = module.params.get('state')
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wait = module.params.get('wait')
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wait_timeout = module.params.get('wait_timeout')
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setup_rax_module(module, pyrax)
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rax_cdb(module, state, name, flavor, volume, wait, wait_timeout)
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# import module snippets
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from ansible.module_utils.basic import *
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from ansible.module_utils.rax import *
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### invoke the module
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main()
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