314 lines
10 KiB
Python
314 lines
10 KiB
Python
#!/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_clb
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short_description: create / delete a load balancer in Rackspace Public Cloud
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description:
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- creates / deletes a Rackspace Public Cloud load balancer.
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version_added: "1.4"
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options:
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algorithm:
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description:
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- algorithm for the balancer being created
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choices: ['RANDOM', 'LEAST_CONNECTIONS', 'ROUND_ROBIN', 'WEIGHTED_LEAST_CONNECTIONS', 'WEIGHTED_ROUND_ROBIN']
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default: LEAST_CONNECTIONS
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api_key:
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description:
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- Rackspace API key (overrides C(credentials))
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credentials:
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description:
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- File to find the Rackspace credentials in (ignored if C(api_key) and
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C(username) are provided)
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default: null
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aliases: ['creds_file']
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meta:
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description:
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- A hash of metadata to associate with the instance
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default: null
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name:
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description:
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- Name to give the load balancer
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default: null
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port:
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description:
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- Port for the balancer being created
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default: 80
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protocol:
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description:
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- Protocol for the balancer being created
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choices: ['DNS_TCP', 'DNS_UDP' ,'FTP', 'HTTP', 'HTTPS', 'IMAPS', 'IMAPv4', 'LDAP', 'LDAPS', 'MYSQL', 'POP3', 'POP3S', 'SMTP', 'TCP', 'TCP_CLIENT_FIRST', 'UDP', 'UDP_STREAM', 'SFTP']
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default: HTTP
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region:
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description:
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- Region to create the load balancer in
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default: DFW
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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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timeout:
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description:
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- timeout for communication between the balancer and the node
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default: 30
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type:
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description:
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- type of interface for the balancer being created
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choices: ['PUBLIC', 'SERVICENET']
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default: PUBLIC
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username:
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description:
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- Rackspace username (overrides C(credentials))
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wait:
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description:
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- wait for the balancer 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: Christopher H. Laco, Matt Martz
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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 Load Balancer
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gather_facts: False
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hosts: local
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connection: local
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tasks:
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- name: Load Balancer create request
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local_action:
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module: rax_clb
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credentials: ~/.raxpub
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name: my-lb
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port: 8080
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protocol: HTTP
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type: SERVICENET
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timeout: 30
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region: DFW
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wait: yes
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state: present
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meta:
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app: my-cool-app
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register: my_lb
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'''
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import sys
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import os
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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 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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ALGORITHMS = ['RANDOM', 'LEAST_CONNECTIONS', 'ROUND_ROBIN',
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'WEIGHTED_LEAST_CONNECTIONS', 'WEIGHTED_ROUND_ROBIN']
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PROTOCOLS = ['DNS_TCP', 'DNS_UDP', 'FTP', 'HTTP', 'HTTPS', 'IMAPS', 'IMAPv4',
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'LDAP', 'LDAPS', 'MYSQL', 'POP3', 'POP3S', 'SMTP', 'TCP',
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'TCP_CLIENT_FIRST', 'UDP', 'UDP_STREAM', 'SFTP']
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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 key == 'virtual_ips':
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instance[key] = []
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for vip in value:
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vip_dict = {}
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for vip_key, vip_value in vars(vip).iteritems():
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if isinstance(vip_value, NON_CALLABLES):
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vip_dict[vip_key] = vip_value
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instance[key].append(vip_dict)
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elif key == 'nodes':
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instance[key] = []
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for node in value:
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instance[key].append(node.to_dict())
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elif (isinstance(value, NON_CALLABLES) and
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not key.startswith('_')):
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instance[key] = value
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return instance
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def cloud_load_balancer(module, state, name, meta, algorithm, port, protocol,
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vip_type, timeout, wait, wait_timeout):
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for arg in (state, name, port, protocol, vip_type):
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if not arg:
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module.fail_json(msg='%s is required for rax_clb' % arg)
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if int(timeout) < 30:
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module.fail_json(msg='"timeout" must be greater than or equal to 30')
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changed = False
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balancers = []
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clb = pyrax.cloud_loadbalancers
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for balancer in clb.list():
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if name != balancer.name and name != balancer.id:
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continue
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balancers.append(balancer)
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if len(balancers) > 1:
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module.fail_json(msg='Multiple Load Balancers were matched by name, '
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'try using the Load Balancer ID instead')
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if state == 'present':
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if isinstance(meta, dict):
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metadata = [dict(key=k, value=v) for k, v in meta.items()]
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if not balancers:
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try:
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virtual_ips = [clb.VirtualIP(type=vip_type)]
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balancer = clb.create(name, metadata=metadata, port=port,
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algorithm=algorithm, protocol=protocol,
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timeout=timeout, virtual_ips=virtual_ips)
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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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else:
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balancer = balancers[0]
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setattr(balancer, 'metadata',
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[dict(key=k, value=v) for k, v in
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balancer.get_metadata().items()])
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atts = {
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'name': name,
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'algorithm': algorithm,
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'port': port,
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'protocol': protocol,
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'timeout': timeout
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}
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for att, value in atts.iteritems():
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current = getattr(balancer, att)
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if current != value:
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changed = True
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if changed:
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balancer.update(**atts)
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if balancer.metadata != metadata:
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balancer.set_metadata(meta)
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changed = True
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virtual_ips = [clb.VirtualIP(type=vip_type)]
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current_vip_types = set([v.type for v in balancer.virtual_ips])
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vip_types = set([v.type for v in virtual_ips])
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if current_vip_types != vip_types:
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module.fail_json(msg='Load balancer Virtual IP type cannot '
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'be changed')
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if wait:
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attempts = wait_timeout / 5
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pyrax.utils.wait_for_build(balancer, interval=5, attempts=attempts)
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balancer.get()
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instance = to_dict(balancer)
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result = dict(changed=changed, balancer=instance)
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if balancer.status == 'ERROR':
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result['msg'] = '%s failed to build' % balancer.id
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elif wait and balancer.status not in ('ACTIVE', 'ERROR'):
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result['msg'] = 'Timeout waiting on %s' % balancer.id
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if 'msg' in result:
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module.fail_json(**result)
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else:
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module.exit_json(**result)
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elif state == 'absent':
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if balancers:
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balancer = balancers[0]
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try:
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balancer.delete()
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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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instance = to_dict(balancer)
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if wait:
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attempts = wait_timeout / 5
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pyrax.utils.wait_until(balancer, 'status', ('DELETED'),
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interval=5, attempts=attempts)
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else:
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instance = {}
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module.exit_json(changed=changed, balancer=instance)
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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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algorithm=dict(choices=ALGORITHMS, default='LEAST_CONNECTIONS'),
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meta=dict(type='dict', default={}),
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name=dict(),
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port=dict(type='int', default=80),
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protocol=dict(choices=PROTOCOLS, default='HTTP'),
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state=dict(default='present', choices=['present', 'absent']),
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timeout=dict(type='int', default=30),
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type=dict(choices=['PUBLIC', 'SERVICENET'], default='PUBLIC'),
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wait=dict(type='bool'),
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wait_timeout=dict(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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algorithm = module.params.get('algorithm')
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meta = module.params.get('meta')
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name = module.params.get('name')
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port = module.params.get('port')
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protocol = module.params.get('protocol')
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state = module.params.get('state')
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timeout = int(module.params.get('timeout'))
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vip_type = module.params.get('type')
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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_rax_module(module, pyrax)
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cloud_load_balancer(module, state, name, meta, algorithm, port, protocol,
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vip_type, timeout, 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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