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|
#!/bin/python
from ansible.module_utils.basic import *
try:
from cinderclient.v2 import client
except ImportError:
print("failed=True msg='cinder client is required'")
DOCUMENTATION = '''
---
module: cinder_configure
short_description: Configure Openstack Block Storage (Cinder)
description: Create QoS needed for deploying Cinder
options:
action:
description:
- The action corresponds to a Cinder qos command, such as cinder qos-create.
required: true
choices: [create, associate, disassociate, key]
username:
description:
- username used to authenticate with keystone
required: true
password:
description:
- password used to authenticate with keystone
required: true
url_auth:
description:
- keystone url for authentication
required: true
tenant_name:
description:
- tenant name or project name of the login user
required: true
region_name:
description:
- region to connect to
required: true
name:
description:
- Name to be given to the QoS
required: true
extra_specs:
description:
- A dictionary of extra specs to add to the QoS
required: true
qos_volume_type:
description:
- The name of the volume-type to assign QoS to.
required: true
requirements: [ cinder ]
author: Rodrigo Soto
'''
EXAMPLES = '''
cinder_qos:
action: create
username: admin
password: admin
url_auth: "http://keystone/v2"
tenant_name: admin
region_name: RegionOne
name: qos-test
extra_specs: "test=hello,test2=world"
qos_volume_type: some-type
'''
def _get_cinderclient(module):
try:
cinder_client = client.Client(
module.params.get('username'),
module.params.get('password'),
module.params.get('tenant_name'),
module.params.get('url_auth'),
region_name=module.params.get('region_name')
)
except Exception as e:
module.fail_json(msg="Error authenticating to cinder: %s" % e.message)
return cinder_client
def _get_qos_id(module, cinderclient):
name = module.params.get('name')
try:
qos_list = cinderclient.qos_specs.list()
for qos in qos_list:
if qos.name == name:
return qos.id
except Exception:
return None
def _create_qos(module, cinderclient):
name = module.params.get('name')
extra_specs = module.params.get('extra_specs').split(',')
extra_specs_dict = {}
for extra_spec in extra_specs:
key, value = extra_spec.split('=')
extra_specs_dict[key] = value
before = cinderclient.qos_specs.list()
try:
qos = cinderclient.qos_specs.create(name, extra_specs_dict)
except Exception as e:
module.fail_json(msg="Error creating qos: %s" % e.message)
after = cinderclient.qos_specs.list()
changes = _qos_changes(before, after)
changed = True if changes else False
results = {'action': 'create'}
results.update(changes)
return (changed, results)
def _get_volume_type_id(module, cinderclient):
name = module.params.get('qos_volume_type')
type_list = cinderclient.volume_types.list()
volume_type_id = ''
try:
for type in type_list:
if type.name == name:
volume_type_id = type.id
except Exception as e:
module.fail_json(msg="Error getting QoS Volume Type ID: %s" % e.message)
return volume_type_id
def _associate_qos(module, cinderclient):
volume_type_id = _get_volume_type_id(module, cinderclient)
qos_id = _get_qos_id(module, cinderclient)
before = cinderclient.qos_specs.get_associations(qos_id)
try:
associate = cinderclient.qos_specs.associate(qos_id, volume_type_id)
except Exception as e:
module.fail_json(msg="Error associating qos: %s" % e.message)
after = cinderclient.qos_specs.get_associations(qos_id)
changes = _qos_changes(before, after)
changed = True if changes else False
results = {'action': 'associate'}
results.update(changes)
return (changed, results)
def _disassociate_qos(module, cinderclient):
volume_type_id = _get_volume_type_id(module, cinderclient)
qos_id = _get_qos_id(module, cinderclient)
before = cinderclient.qos_specs.get_associations(qos_id)
try:
cinderclient.qos_specs.disassociate(qos_id, volume_type_id)
except Exception as e:
module.fail_json(msg="Error disassociating qos: %s" % e.message)
after = cinderclient.qos_specs.get_associations(qos_id)
changes = _qos_changes(before, after)
changed = True if changes else False
results = {'action': 'disassociate'}
results.update(changes)
return (changed, results)
def _set_qos_keys(module, cinderclient):
volume_type_id = _get_volume_type_id(module, cinderclient)
qos_id = _get_qos_id(module, cinderclient)
name = module.params.get('name')
extra_specs = module.params.get('extra_specs').split(',')
extra_specs_dict = {}
for extra_spec in extra_specs:
key, value = extra_spec.split('=')
extra_specs_dict[key] = value
before = cinderclient.qos_specs.get(qos_id)
try:
cinderclient.qos_specs.set_keys(qos_id, extra_specs_dict)
except Exception as e:
module.fail_json(msg="Error setting key(s) for qos: %s" % e.message)
after = cinderclient.qos_specs.get(qos_id)
changes = _qos_changes(before, after)
changed = True if changes else False
results = {'action': 'set-key'}
results.update(changes)
return (changed, results)
def _qos_changes(before, after):
changes = {}
if type(before) is list:
if before == after:
return changes
else:
changes['Changed']='True'
return changes
before_dict = {}
for attr,value in before.__dict__.iteritems():
before_dict[attr] = value
after_dict = {}
for attr,value in after.__dict__.iteritems():
after_dict[attr] = value
for key in before_dict:
if before_dict[key] != after_dict[key]:
changes[key] = after_dict[key]
return changes
def main():
module = AnsibleModule(
argument_spec={
'action': {'required': True, 'default': None},
'username': {'required': True},
'password': {'required': True},
'url_auth': {'required': True},
'tenant_name': {'required': True},
'region_name': {'required': True},
'name': {'required': True},
'extra_specs': {'required': True},
'qos_volume_type': {'required': True}
},
)
cinderclient = _get_cinderclient(module)
if module.params.get('action') == 'create':
qos_id = _get_qos_id(module, cinderclient)
if qos_id is None:
changed, results = _create_qos(module, cinderclient)
else:
module.exit_json(changed=False, result="Success", msg=qos_id)
elif module.params.get('action') == 'associate':
qos_id = _get_qos_id(module, cinderclient)
changed, results = _associate_qos(module, cinderclient)
elif module.params.get('action') == 'key':
qos_id = _get_qos_id(module, cinderclient)
changed, results = _set_qos_keys(module, cinderclient)
elif module.params.get('action') == 'disassociate':
qos_id = _get_qos_id(module, cinderclient)
changed, results = _disassociate_qos(module, cinderclient)
module.exit_json(changed=changed, item=results)
main()
|
