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Initial commit of rax library
This library provides functionality for the Rackspace Public Cloud by way of the official pyrax SDK (https://github.com/rackspace/pyrax). At this time only the cloudservers service is functional. Instances can be created or deleted. Idempotency is provided on matching instances with the same name, flavor, image, and metadata values within a given region. pyrax usage does require a credentials file written out to hold username and API key. See pyrax documentation for details (https://github.com/rackspace/pyrax/blob/master/docs/pyrax_doc.md)
This commit is contained in:
Jesse Keating
parent
36bcfb5d49
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9027a9b021
1 changed files with 247 additions and 0 deletions
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library/rax
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library/rax
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#!/usr/bin/env 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
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short_description: create an instance in Rackspace Public Cloud, return instanceid
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description:
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- creates Rackspace Public Cloud instances and optionally waits for it to be 'running'.
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version_added: "1.2"
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options:
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service:
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description:
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- Cloud service to interact with
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required: false
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choices: ['cloudservers', 'cloudfiles', 'cloud_databases', 'cloud_loadbalancers']
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default: cloudservers
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state:
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description:
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- Indicate desired state of the resource
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required: false
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choices: ['present', 'active', 'absent', 'deleted']
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default: present
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creds_file:
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description:
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- File to find the Rackspace Public Cloud credentials in
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required: false
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default: null
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name:
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description:
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- Name to give the instance
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required: false
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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
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required: false
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default: null
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image:
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description:
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- image to use for the instance
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required: false
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default: null
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key_name:
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description:
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- key pair to use on the instance
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required: false
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default: null
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aliases: ['keypair']
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region:
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description:
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- Region to create an instance in
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required: false
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default: null
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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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required: false
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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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examples:
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- code: 'local_action: rax creds_file=~/.raxpub service=cloudservers name=rax-test1 flavor=5 image=b11d9567-e412-4255-96b9-bd63ab23bcfe wait=yes state=present'
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description: "Examples from Ansible Playbooks"
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requirements: [ "pyrax" ]
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author: Jesse Keating
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notes:
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- Two environment variables can be used, RAX_CREDS and RAX_REGION.
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- RAX_CREDS points to a credentials file appropriate for pyrax
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- RAX_REGION defines a Rackspace Public Cloud region (DFW, ORD, LON, ...)
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'''
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import sys
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import time
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import os
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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 required for this module'")
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sys.exit(1)
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SUPPORTEDSERVICES = ['cloudservers', 'cloudfiles', 'cloud_blockstorage',
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'cloud_databases', 'cloud_loadbalancers']
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def cloudservers(module, state, name, flavor, image, meta, key_name, wait,
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wait_timeout):
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# Check our args (this could be done better)
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for arg in (state, name, flavor, image):
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if not arg:
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module.fail_json(msg='%s is required for cloudservers' % arg)
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instances = []
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changed = False
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servers = []
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# See if we can find servers that match our options
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for server in pyrax.cloudservers.list():
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if name != server.name:
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continue
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if flavor != server.flavor['id']:
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continue
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if image != server.image['id']:
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continue
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if meta != server.metadata:
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continue
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# Nothing else ruled us not a match, so consider it a winner
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servers.append(server)
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# act on the state
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if state in ('active', 'present'):
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# See if we already have any servers:
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if not servers:
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try:
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servers = [pyrax.cloudservers.servers.create(name=name,
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image=image,
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flavor=flavor,
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key_name=key_name,
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meta=meta)]
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changed = True
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except Exception, e:
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module.fail_json(msg = '%s' % e.message)
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for server in servers:
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# wait here until the instances are up
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wait_timeout = time.time() + wait_timeout
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while wait and wait_timeout > time.time():
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# refresh the server details
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server.get()
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if server.status in ('ACTIVE', 'ERROR'):
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break
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time.sleep(5)
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if wait and wait_timeout <= time.time():
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# waiting took too long
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module.fail_json(msg = 'Timeout waiting on %s' % server.id)
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# Get a fresh copy of the server details
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server.get()
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if server.status == 'ERROR':
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module.fail_json(msg = '%s failed to build' % server.id)
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instance = {'id': server.id,
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'accessIPv4': server.accessIPv4,
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'name': server.name,
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'status': server.status}
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instances.append(instance)
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elif state in ('absent', 'deleted'):
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deleted = []
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# See if we can find a server that matches our credentials
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for server in servers:
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if server.name == name:
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if server.flavor['id'] == flavor and \
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server.image['id'] == image and \
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server.metadata == meta:
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try:
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server.delete()
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deleted.append(server)
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except Exception, e:
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module.fail_json(msg = e.message)
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instance = {'id': server.id,
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'accessIPv4': server.accessIPv4,
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'name': server.name,
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'status': 'DELETING'}
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instances.append(instance)
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changed = True
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module.exit_json(changed=changed, instances=instances)
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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service = dict(default='cloudservers', choices=SUPPORTEDSERVICES),
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state = dict(default='present', choices=['active', 'present',
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'deleted', 'absent']),
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creds_file = dict(),
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name = dict(),
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key_name = dict(aliases = ['keypair']),
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flavor = dict(),
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image = dict(),
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meta = dict(type='dict', default={}),
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region = dict(),
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wait = dict(type='bool', choices=BOOLEANS),
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wait_timeout = dict(default=300),
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)
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)
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service = module.params.get('service')
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state = module.params.get('state')
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creds_file = module.params.get('creds_file')
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name = module.params.get('name')
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key_name = module.params.get('key_name')
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flavor = module.params.get('flavor')
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image = module.params.get('image')
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meta = module.params.get('meta')
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region = module.params.get('region')
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wait = module.params.get('wait')
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wait_timeout = int(module.params.get('wait_timeout'))
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# Setup the credentials file
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if not creds_file:
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try:
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creds_file = os.environ['RAX_CREDS_FILE']
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except KeyError, e:
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module.fail_json(msg = 'Unable to load %s' % e.message)
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# Define the region
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if not region:
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try:
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region = os.environ['RAX_REGION']
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except KeyError, e:
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module.fail_json(msg = 'Unable to load %s' % e.message)
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# setup the auth
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sys.stderr.write('region is %s' % region)
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try:
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pyrax.set_credential_file(creds_file, region=region)
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except Exception, e:
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module.fail_json(msg = '%s' % e.message)
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# Act based on service
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if service == 'cloudservers':
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cloudservers(module, state, name, flavor, image, meta, key_name, wait,
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wait_timeout)
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elif service in ['cloudfiles', 'cloud_blockstorage',
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'cloud_databases', 'cloud_loadbalancers']:
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module.fail_json(msg = 'Service %s is not supported at this time' %
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service)
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# this is magic, see lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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