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#!/usr/bin/python
#coding: utf-8 -*-
# (c) 2015, Christian Zunker <christian.zunker@codecentric.de>
#
# This module is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this software. If not, see <http://www.gnu.org/licenses/>.
try:
from novaclient import client
from keystoneclient.v2_0 import client as ksclient
except ImportError:
print("failed=True msg='novaclient and keystone client are required'")
DOCUMENTATION = '''
---
module: nova_aggregate
short_description: Manage OpenStack host aggregates
description:
- Create host aggregates with OpenStack Nova service
requirements: [ python-novaclient ]
options:
login_username:
description:
- user name to authenticate against Identity service
required: True
aliases: [username]
login_password:
description:
- password to authenticate against Identity service
aliases: [password]
required: True
login_tenant_name:
description:
- tenant name of the login user
aliases: [tenant_name]
required: True
auth_url:
description:
- The keystone URL for authentication
required: false
default: 'http://127.0.0.1:35357/v2.0/'
region_name:
description:
- Name of the region
required: False
default: None
name:
description:
- Descriptive name of the aggregate
required: True
availability_zone:
description:
- Availability Zone of the aggregate
required: False
hosts:
description:
- Hosts asigned to the aggregate
required: False
metadata:
description:
- Metadata for the aggregate, used as reference inside flavors
required: False
state:
description:
- Create or delete aggregate
required: False
choices: ['present', 'absent']
default: 'present'
'''
EXAMPLES = '''
- nova_aggregate:
login_username: admin
login_password: 1234
login_tenant_name: admin
name: medium
'''
def authenticate(module, auth_url, username, password, tenant_name, region):
"""
Return a Nova client object.
"""
try:
keystone = ksclient.Client(auth_url=auth_url,
username=username,
password=password,
tenant_name=tenant_name,
region=region)
except Exception as e:
module.fail_json(
msg = "Could not authenticate with Keystone: {}".format(
e.message))
try:
nova = client.Client('2', keystone.username,
keystone.password,
keystone.tenant_name,
keystone.auth_url)
except Exception as e:
module.fail_json(msg = "Could not get Nova client: {}".format(
e.message))
return nova
def get_aggregates(nova, name, id=None):
if not id:
aggregates = [x for x in nova.aggregates.list() if x.name == name]
else:
aggregates = [x for x in nova.aggregates.list() if x.name == name and x.id == str(id)]
return aggregates
def create_aggregate(module, nova, name, availability_zone, hosts, metadata, id):
aggregate_name = name + "-" + availability_zone
aggregates = get_aggregates(nova, aggregate_name, id)
if len(aggregates) >0:
present_aggregate = aggregates[0]
changed = False
for host in hosts:
if not host in present_aggregate.hosts:
nova.aggregates.add_host(present_aggregate, host)
changed = True
if metadata != present_aggregate.metadata:
nova.aggregates.set_metadata(present_aggregate, metadata)
changed = True
return changed, aggregates[0].id
try:
aggregate = nova.aggregates.create(name=aggregate_name, availability_zone=availability_zone)
for host in hosts:
nova.aggregates.add_host(aggregate, host)
nova.aggregates.set_metadata(aggregate, metadata)
except Exception as e:
module.fail_json(msg = "Could not create aggregate: {0}".format(e.message))
return True, aggregate.id
def delete_aggregate(module, nova, name):
aggregates = get_aggregates(nova, name)
if len(aggregates) == 0:
return False
for aggregate in aggregates:
try:
nova.aggregates.delete(aggregate);
except Exception as e:
module.fail_json(msg = "Could not delete aggregate {0}: {1}".format(name, e.message))
return True
def main():
module = AnsibleModule(
argument_spec = dict(
login_username = dict(default='admin', aliases=["username"]),
login_password = dict(required=True, aliases=["password"]),
login_tenant_name = dict(required='True', aliases=["tenant_name"]),
auth_url = dict(default='http://127.0.0.1:35357/v2.0/'),
region_name = dict(default=None),
name = dict(required=True),
id = dict(default=None),
availability_zone = dict(required=False),
hosts = dict(required=False),
metadata = dict(required=False, default=None),
state = dict(default='present'),
)
)
auth_url = module.params['auth_url']
region = module.params['region_name']
username = module.params['login_username']
password = module.params['login_password']
tenant_name = module.params['login_tenant_name']
name = module.params['name']
availability_zone = module.params['availability_zone']
hosts = module.params['hosts']
metadata = module.params['metadata']
id = module.params['id']
state = module.params['state']
nova = authenticate(module, auth_url, username, password, tenant_name, region)
if state == 'present':
changed, id = create_aggregate(module, nova, name, availability_zone, hosts, metadata, id)
module.exit_json(changed=changed, name=name, id=id)
elif state == 'absent':
changed = delete_aggregate(module, nova, name)
module.exit_json(changed=changed, name=name)
else:
raise ValueError("Code should never reach here")
# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
if __name__ == '__main__':
main()
|
