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community.general/plugins/modules/cloud/packet/packet_ip_subnet.py
Alexei Znamensky e91903c531 Tidy up validate-modules ignores doc-required-mismatch
2020-11-28 16:54:00 +13:00

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: (c) 2019, Nurfet Becirevic <nurfet.becirevic@gmail.com>
# Copyright: (c) 2017, Tomas Karasek <tom.to.the.k@gmail.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = '''
---
module: packet_ip_subnet
short_description: Assign IP subnet to a bare metal server.
description:
- Assign or unassign IPv4 or IPv6 subnets to or from a device in the Packet host.
- IPv4 subnets must come from already reserved block.
- IPv6 subnets must come from publicly routable /56 block from your project.
- See U(https://support.packet.com/kb/articles/elastic-ips) for more info on IP block reservation.
version_added: '0.2.0'
author:
- Tomas Karasek (@t0mk) <tom.to.the.k@gmail.com>
- Nurfet Becirevic (@nurfet-becirevic) <nurfet.becirevic@gmail.com>
options:
auth_token:
description:
- Packet API token. You can also supply it in env var C(PACKET_API_TOKEN).
type: str
hostname:
description:
- A hostname of a device to/from which to assign/remove a subnet.
required: False
type: str
device_id:
description:
- UUID of a device to/from which to assign/remove a subnet.
required: False
type: str
project_id:
description:
- UUID of a project of the device to/from which to assign/remove a subnet.
type: str
device_count:
description:
- The number of devices to retrieve from the project. The max allowed value is 1000.
- See U(https://www.packet.com/developers/api/#retrieve-all-devices-of-a-project) for more info.
default: 100
type: int
cidr:
description:
- IPv4 or IPv6 subnet which you want to manage. It must come from a reserved block for your project in the Packet Host.
aliases: [name]
type: str
required: true
state:
description:
- Desired state of the IP subnet on the specified device.
- With state == C(present), you must specify either hostname or device_id. Subnet with given CIDR will then be assigned to the specified device.
- With state == C(absent), you can specify either hostname or device_id. The subnet will be removed from specified devices.
- If you leave both hostname and device_id empty, the subnet will be removed from any device it's assigned to.
choices: ['present', 'absent']
default: 'present'
type: str
requirements:
- "packet-python >= 1.35"
- "python >= 2.6"
'''
EXAMPLES = '''
# All the examples assume that you have your Packet API token in env var PACKET_API_TOKEN.
# You can also pass it to the auth_token parameter of the module instead.
- name: Create 1 device and assign an arbitrary public IPv4 subnet to it
hosts: localhost
tasks:
- packet_device:
project_id: 89b497ee-5afc-420a-8fb5-56984898f4df
hostnames: myserver
operating_system: ubuntu_16_04
plan: baremetal_0
facility: sjc1
state: active
# Pick an IPv4 address from a block allocated to your project.
- community.general.packet_ip_subnet:
project_id: 89b497ee-5afc-420a-8fb5-56984898f4df
hostname: myserver
cidr: "147.75.201.78/32"
# Release IP address 147.75.201.78
- name: Unassign IP address from any device in your project
hosts: localhost
tasks:
- community.general.packet_ip_subnet:
project_id: 89b497ee-5afc-420a-8fb5-56984898f4df
cidr: "147.75.201.78/32"
state: absent
'''
RETURN = '''
changed:
description: True if an IP address assignments were altered in any way (created or removed).
type: bool
sample: True
returned: success
device_id:
type: str
description: UUID of the device associated with the specified IP address.
returned: success
subnet:
description: Dict with data about the handled IP subnet.
type: dict
sample:
address: 147.75.90.241
address_family: 4
assigned_to: { href : /devices/61f9aa5e-0530-47f5-97c2-113828e61ed0 }
cidr: 31
created_at: '2017-08-07T15:15:30Z'
enabled: True
gateway: 147.75.90.240
href: /ips/31eda960-0a16-4c0f-b196-f3dc4928529f
id: 1eda960-0a16-4c0f-b196-f3dc4928529f
manageable: True
management: True
netmask: 255.255.255.254
network: 147.75.90.240
public: True
returned: success
'''
import uuid
import re
from ansible.module_utils.basic import AnsibleModule, env_fallback
from ansible.module_utils._text import to_native
HAS_PACKET_SDK = True
try:
import packet
except ImportError:
HAS_PACKET_SDK = False
NAME_RE = r'({0}|{0}{1}*{0})'.format(r'[a-zA-Z0-9]', r'[a-zA-Z0-9\-]')
HOSTNAME_RE = r'({0}\.)*{0}$'.format(NAME_RE)
PROJECT_MAX_DEVICES = 100
PACKET_API_TOKEN_ENV_VAR = "PACKET_API_TOKEN"
ALLOWED_STATES = ['absent', 'present']
def is_valid_hostname(hostname):
return re.match(HOSTNAME_RE, hostname) is not None
def is_valid_uuid(myuuid):
try:
val = uuid.UUID(myuuid, version=4)
except ValueError:
return False
return str(val) == myuuid
def get_existing_devices(module, packet_conn):
project_id = module.params.get('project_id')
if not is_valid_uuid(project_id):
raise Exception("Project ID {0} does not seem to be valid".format(project_id))
per_page = module.params.get('device_count')
return packet_conn.list_devices(
project_id, params={'per_page': per_page})
def get_specified_device_identifiers(module):
if module.params.get('device_id'):
_d_id = module.params.get('device_id')
if not is_valid_uuid(_d_id):
raise Exception("Device ID '{0}' does not seem to be valid".format(_d_id))
return {'device_id': _d_id, 'hostname': None}
elif module.params.get('hostname'):
_hn = module.params.get('hostname')
if not is_valid_hostname(_hn):
raise Exception("Hostname '{0}' does not seem to be valid".format(_hn))
return {'hostname': _hn, 'device_id': None}
else:
return {'hostname': None, 'device_id': None}
def parse_subnet_cidr(cidr):
if "/" not in cidr:
raise Exception("CIDR expression in wrong format, must be address/prefix_len")
addr, prefixlen = cidr.split("/")
try:
prefixlen = int(prefixlen)
except ValueError:
raise("Wrong prefix length in CIDR expression {0}".format(cidr))
return addr, prefixlen
def act_on_assignment(target_state, module, packet_conn):
return_dict = {'changed': False}
specified_cidr = module.params.get("cidr")
address, prefixlen = parse_subnet_cidr(specified_cidr)
specified_identifier = get_specified_device_identifiers(module)
if module.check_mode:
return return_dict
if (specified_identifier['hostname'] is None) and (
specified_identifier['device_id'] is None):
if target_state == 'absent':
# The special case to release the IP from any assignment
for d in get_existing_devices(module, packet_conn):
for ia in d.ip_addresses:
if address == ia['address'] and prefixlen == ia['cidr']:
packet_conn.call_api(ia['href'], "DELETE")
return_dict['changed'] = True
return_dict['subnet'] = ia
return_dict['device_id'] = d.id
return return_dict
raise Exception("If you assign an address, you must specify either "
"target device ID or target unique hostname.")
if specified_identifier['device_id'] is not None:
device = packet_conn.get_device(specified_identifier['device_id'])
else:
all_devices = get_existing_devices(module, packet_conn)
hn = specified_identifier['hostname']
matching_devices = [d for d in all_devices if d.hostname == hn]
if len(matching_devices) > 1:
raise Exception("There are more than one devices matching given hostname {0}".format(hn))
if len(matching_devices) == 0:
raise Exception("There is no device matching given hostname {0}".format(hn))
device = matching_devices[0]
return_dict['device_id'] = device.id
assignment_dicts = [i for i in device.ip_addresses
if i['address'] == address and i['cidr'] == prefixlen]
if len(assignment_dicts) > 1:
raise Exception("IP address {0} is assigned more than once for device {1}".format(
specified_cidr, device.hostname))
if target_state == "absent":
if len(assignment_dicts) == 1:
packet_conn.call_api(assignment_dicts[0]['href'], "DELETE")
return_dict['subnet'] = assignment_dicts[0]
return_dict['changed'] = True
elif target_state == "present":
if len(assignment_dicts) == 0:
new_assignment = packet_conn.call_api(
"devices/{0}/ips".format(device.id), "POST", {"address": "{0}".format(specified_cidr)})
return_dict['changed'] = True
return_dict['subnet'] = new_assignment
return return_dict
def main():
module = AnsibleModule(
argument_spec=dict(
auth_token=dict(
type='str',
fallback=(env_fallback, [PACKET_API_TOKEN_ENV_VAR]),
no_log=True
),
device_id=dict(type='str'),
hostname=dict(type='str'),
project_id=dict(type='str'),
device_count=dict(type='int', default=PROJECT_MAX_DEVICES),
cidr=dict(type='str', required=True, aliases=['name']),
state=dict(choices=ALLOWED_STATES, default='present'),
),
supports_check_mode=True,
mutually_exclusive=[('hostname', 'device_id')],
required_one_of=[['hostname', 'device_id', 'project_id']],
required_by=dict(
hostname=('project_id',),
),
)
if not HAS_PACKET_SDK:
module.fail_json(msg='packet required for this module')
if not module.params.get('auth_token'):
_fail_msg = ("if Packet API token is not in environment variable {0}, "
"the auth_token parameter is required".format(PACKET_API_TOKEN_ENV_VAR))
module.fail_json(msg=_fail_msg)
auth_token = module.params.get('auth_token')
packet_conn = packet.Manager(auth_token=auth_token)
state = module.params.get('state')
try:
module.exit_json(**act_on_assignment(state, module, packet_conn))
except Exception as e:
module.fail_json(
msg="failed to set IP subnet to state {0}, error: {1}".format(state, to_native(e)))
if __name__ == '__main__':
main()
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