#!/usr/bin/python
# Copyright (c) 2018 Catalyst Cloud Ltd.
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
DOCUMENTATION = '''
---
module: lb_pool
short_description: Add/Delete a pool in the load balancing service from OpenStack Cloud
author: OpenStack Ansible SIG
description:
- Add or Remove a pool from the OpenStack load-balancer service.
options:
name:
description:
- Name that has to be given to the pool
required: true
type: str
state:
description:
- Should the resource be present or absent.
choices: [present, absent]
default: present
type: str
loadbalancer:
description:
- The name or id of the load balancer that this pool belongs to.
Either loadbalancer or listener must be specified for pool creation.
type: str
listener:
description:
- The name or id of the listener that this pool belongs to.
Either loadbalancer or listener must be specified for pool creation.
type: str
protocol:
description:
- The protocol for the pool.
choices: [HTTP, HTTPS, PROXY, TCP, UDP]
default: HTTP
type: str
lb_algorithm:
description:
- The load balancing algorithm for the pool.
choices: [LEAST_CONNECTIONS, ROUND_ROBIN, SOURCE_IP]
default: ROUND_ROBIN
type: str
wait:
description:
- If the module should wait for the pool to be ACTIVE.
type: bool
default: 'yes'
timeout:
description:
- The amount of time the module should wait for the pool to get
into ACTIVE state.
default: 180
type: int
requirements:
- "python >= 3.6"
- "openstacksdk"
extends_documentation_fragment:
- openstack.cloud.openstack
'''
RETURN = '''
id:
description: The pool UUID.
returned: On success when I(state) is 'present'
type: str
sample: "39007a7e-ee4f-4d13-8283-b4da2e037c69"
listener:
description: Dictionary describing the pool.
returned: On success when I(state) is 'present'
type: complex
contains:
id:
description: Unique UUID.
type: str
sample: "39007a7e-ee4f-4d13-8283-b4da2e037c69"
name:
description: Name given to the pool.
type: str
sample: "test"
description:
description: The pool description.
type: str
sample: "description"
loadbalancers:
description: A list of load balancer IDs.
type: list
sample: [{"id": "b32eef7e-d2a6-4ea4-a301-60a873f89b3b"}]
listeners:
description: A list of listener IDs.
type: list
sample: [{"id": "b32eef7e-d2a6-4ea4-a301-60a873f89b3b"}]
members:
description: A list of member IDs.
type: list
sample: [{"id": "b32eef7e-d2a6-4ea4-a301-60a873f89b3b"}]
loadbalancer_id:
description: The load balancer ID the pool belongs to. This field is set when the pool doesn't belong to any listener in the load balancer.
type: str
sample: "7c4be3f8-9c2f-11e8-83b3-44a8422643a4"
listener_id:
description: The listener ID the pool belongs to.
type: str
sample: "956aa716-9c2f-11e8-83b3-44a8422643a4"
provisioning_status:
description: The provisioning status of the pool.
type: str
sample: "ACTIVE"
operating_status:
description: The operating status of the pool.
type: str
sample: "ONLINE"
is_admin_state_up:
description: The administrative state of the pool.
type: bool
sample: true
protocol:
description: The protocol for the pool.
type: str
sample: "HTTP"
lb_algorithm:
description: The load balancing algorithm for the pool.
type: str
sample: "ROUND_ROBIN"
'''
EXAMPLES = '''
# Create a pool, wait for the pool to be active.
- openstack.cloud.lb_pool:
cloud: mycloud
endpoint_type: admin
state: present
name: test-pool
loadbalancer: test-loadbalancer
protocol: HTTP
lb_algorithm: ROUND_ROBIN
# Delete a pool
- openstack.cloud.lb_pool:
cloud: mycloud
endpoint_type: admin
state: absent
name: test-pool
'''
import time
from ansible.module_utils.basic import AnsibleModule
from ansible_collections.openstack.cloud.plugins.module_utils.openstack import openstack_full_argument_spec, \
openstack_module_kwargs, openstack_cloud_from_module
def _wait_for_pool_status(module, cloud, pool_id, status, failures,
interval=5):
timeout = module.params['timeout']
total_sleep = 0
if failures is None:
failures = []
while total_sleep < timeout:
pool = cloud.load_balancer.get_pool(pool_id)
provisioning_status = pool.provisioning_status
if provisioning_status == status:
return pool
if provisioning_status in failures:
module.fail_json(
msg="pool %s transitioned to failure state %s" %
(pool_id, provisioning_status)
)
time.sleep(interval)
total_sleep += interval
module.fail_json(
msg="timeout waiting for pool %s to transition to %s" %
(pool_id, status)
)
def main():
argument_spec = openstack_full_argument_spec(
name=dict(required=True),
state=dict(default='present', choices=['absent', 'present']),
loadbalancer=dict(default=None),
listener=dict(default=None),
protocol=dict(default='HTTP',
choices=['HTTP', 'HTTPS', 'TCP', 'UDP', 'PROXY']),
lb_algorithm=dict(
default='ROUND_ROBIN',
choices=['ROUND_ROBIN', 'LEAST_CONNECTIONS', 'SOURCE_IP']
)
)
module_kwargs = openstack_module_kwargs(
mutually_exclusive=[['loadbalancer', 'listener']]
)
module = AnsibleModule(argument_spec, **module_kwargs)
sdk, cloud = openstack_cloud_from_module(module)
loadbalancer = module.params['loadbalancer']
listener = module.params['listener']
try:
changed = False
pool = cloud.load_balancer.find_pool(name_or_id=module.params['name'])
if module.params['state'] == 'present':
if not pool:
loadbalancer_id = None
if not (loadbalancer or listener):
module.fail_json(
msg="either loadbalancer or listener must be provided"
)
if loadbalancer:
lb = cloud.load_balancer.find_load_balancer(loadbalancer)
if not lb:
module.fail_json(msg='load balancer %s is not '
'found' % loadbalancer)
loadbalancer_id = lb.id
listener_id = None
if listener:
listener_ret = cloud.load_balancer.find_listener(listener)
if not listener_ret:
module.fail_json(msg='listener %s is not found'
% listener)
listener_id = listener_ret.id
pool = cloud.load_balancer.create_pool(
name=module.params['name'],
loadbalancer_id=loadbalancer_id,
listener_id=listener_id,
protocol=module.params['protocol'],
lb_algorithm=module.params['lb_algorithm']
)
changed = True
if not module.params['wait']:
module.exit_json(changed=changed,
pool=pool.to_dict(),
id=pool.id)
if module.params['wait']:
pool = _wait_for_pool_status(module, cloud, pool.id, "ACTIVE",
["ERROR"])
module.exit_json(changed=changed, pool=pool.to_dict(),
id=pool.id)
elif module.params['state'] == 'absent':
if pool:
cloud.load_balancer.delete_pool(pool)
changed = True
module.exit_json(changed=changed)
except sdk.exceptions.OpenStackCloudException as e:
module.fail_json(msg=str(e), extra_data=e.extra_data)
if __name__ == "__main__":
main()