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#!/usr/bin/python
#coding: utf-8 -*-
# https://github.com/openstack-ansible/openstack-ansible-modules/blob/master/nova_flavor
# (c) 2014, Adam Samalik <asamalik@redhat.com>
#
# 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_flavor
short_description: Manage OpenStack flavors
description:
- Create VM flavors 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 flavor
required: True
ram:
description:
- Memory in MB for the flavor
required: False
vcpus:
description:
- Number of VCPUs for the flavor
required: False
root:
description:
- Size of root disk in GB
required: False
ephemeral:
description:
- Size of ephemeral space in GB
required: False
swap:
description:
- Swap space in MB
required: False
default: 0
id:
description:
- ID for the flavor (optional).
required: False
default: ID will be automatically generated
is_public:
description:
- Decide if the flavor is public
choices: ['true', 'false']
default: 'true'
extra_specs:
description:
- Metadata used by scheduling to select correct host aggregate
default: None
state:
description:
- Create or delete flavor
required: False
choices: ['present', 'absent']
default: 'present'
'''
EXAMPLES = '''
- nova_flavor:
login_username: admin
login_password: 1234
login_tenant_name: admin
name: medium
ram: 2048
vcpus: 2
root: 0
ephemeral: 20
'''
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_flavors(nova, name, id=None):
if not id:
flavors = [x for x in nova.flavors.list() if x.name == name]
else:
flavors = [x for x in nova.flavors.list() if x.name == name and x.id == str(id)]
return flavors
def create_flavor(module, nova, name, ram, vcpus, root, ephemeral, swap, id, is_public, extra_specs):
flavors = get_flavors(nova, name, id)
if len(flavors) >0:
present_flavor = flavors[0]
# When flavor is created with 0 swap, nova will use an empty value
if present_flavor.swap == "":
present_flavor.swap = 0
# flavor create expects lower case is_public values, but converts them into capitalized value
if present_flavor.ram == int(ram) and present_flavor.vcpus == int(vcpus) and present_flavor.disk == int(root) and present_flavor.ephemeral == int(ephemeral) and present_flavor.swap == int(swap) and str(present_flavor.is_public) == is_public.capitalize():
if present_flavor.get_keys() == extra_specs:
return False, flavors[0].id
else:
present_flavor.set_keys(extra_specs)
return True, flavors[0].id
else:
module.fail_json(msg = "Flavor {0} already present, but specs have changed!".format(name))
try:
flavor = nova.flavors.create(name=name, ram=ram, vcpus=vcpus, disk=root, ephemeral=ephemeral, flavorid=id, swap=swap, is_public=is_public)
flavor.set_keys(extra_specs)
except Exception as e:
module.fail_json(msg = "Could not create a flavor: {0}".format(e.message))
return True, flavor.id
def delete_flavor(module, nova, name):
flavors = get_flavors(nova, name)
if len(flavors) == 0:
return False
for flavor in flavors:
try:
nova.flavors.delete(flavor.id);
except Exception as e:
module.fail_json(msg = "Could not delete flavor {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),
ram = dict(required=False,default=0),
vcpus = dict(required=False,default=0),
root = dict(required=False,default=0),
ephemeral = dict(required=False,default=0),
extra_specs = dict(required=False,default={},type='dict'),
swap = dict(default=0),
id = dict(default=None),
is_public = dict(default='true'),
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']
ram = module.params['ram']
vcpus = module.params['vcpus']
root = module.params['root']
ephemeral = module.params['ephemeral']
extra_specs = module.params['extra_specs']
swap = module.params['swap']
id = module.params['id']
state = module.params['state']
is_public = module.params['is_public']
nova = authenticate(module, auth_url, username, password, tenant_name, region)
if state == 'present':
changed, id = create_flavor(module, nova, name, ram, vcpus, root, ephemeral, swap, id,
is_public, extra_specs)
module.exit_json(changed=changed, name=name, id=id)
elif state == 'absent':
changed = delete_flavor(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()
|
