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community.general/plugins/module_utils/net_tools/nios/api.py

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# -*- coding: utf-8 -*-
# This code is part of Ansible, but is an independent component.
# This particular file snippet, and this file snippet only, is BSD licensed.
# Modules you write using this snippet, which is embedded dynamically by Ansible
# still belong to the author of the module, and may assign their own license
# to the complete work.
#
# (c) 2018 Red Hat Inc.
#
# Simplified BSD License (see simplified_bsd.txt or https://opensource.org/licenses/BSD-2-Clause)
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
from functools import partial
from ansible.module_utils.common.text.converters import to_native
from ansible.module_utils.six import iteritems
from ansible.module_utils.common.text.converters import to_text
from ansible.module_utils.basic import env_fallback
from ansible.module_utils.common.validation import check_type_dict
try:
from infoblox_client.connector import Connector
from infoblox_client.exceptions import InfobloxException
HAS_INFOBLOX_CLIENT = True
except ImportError:
HAS_INFOBLOX_CLIENT = False
# defining nios constants
NIOS_DNS_VIEW = 'view'
NIOS_NETWORK_VIEW = 'networkview'
NIOS_HOST_RECORD = 'record:host'
NIOS_IPV4_NETWORK = 'network'
NIOS_IPV6_NETWORK = 'ipv6network'
NIOS_ZONE = 'zone_auth'
NIOS_PTR_RECORD = 'record:ptr'
NIOS_A_RECORD = 'record:a'
NIOS_AAAA_RECORD = 'record:aaaa'
NIOS_CNAME_RECORD = 'record:cname'
NIOS_MX_RECORD = 'record:mx'
NIOS_SRV_RECORD = 'record:srv'
NIOS_NAPTR_RECORD = 'record:naptr'
NIOS_TXT_RECORD = 'record:txt'
NIOS_NSGROUP = 'nsgroup'
NIOS_IPV4_FIXED_ADDRESS = 'fixedaddress'
NIOS_IPV6_FIXED_ADDRESS = 'ipv6fixedaddress'
NIOS_NEXT_AVAILABLE_IP = 'func:nextavailableip'
NIOS_IPV4_NETWORK_CONTAINER = 'networkcontainer'
NIOS_IPV6_NETWORK_CONTAINER = 'ipv6networkcontainer'
NIOS_MEMBER = 'member'
NIOS_PROVIDER_SPEC = {
'host': dict(fallback=(env_fallback, ['INFOBLOX_HOST'])),
'username': dict(fallback=(env_fallback, ['INFOBLOX_USERNAME'])),
'password': dict(fallback=(env_fallback, ['INFOBLOX_PASSWORD']), no_log=True),
'validate_certs': dict(type='bool', default=False, fallback=(env_fallback, ['INFOBLOX_SSL_VERIFY']), aliases=['ssl_verify']),
'silent_ssl_warnings': dict(type='bool', default=True),
'http_request_timeout': dict(type='int', default=10, fallback=(env_fallback, ['INFOBLOX_HTTP_REQUEST_TIMEOUT'])),
'http_pool_connections': dict(type='int', default=10),
'http_pool_maxsize': dict(type='int', default=10),
'max_retries': dict(type='int', default=3, fallback=(env_fallback, ['INFOBLOX_MAX_RETRIES'])),
'wapi_version': dict(default='2.1', fallback=(env_fallback, ['INFOBLOX_WAP_VERSION'])),
'max_results': dict(type='int', default=1000, fallback=(env_fallback, ['INFOBLOX_MAX_RETRIES']))
}
def get_connector(*args, **kwargs):
''' Returns an instance of infoblox_client.connector.Connector
:params args: positional arguments are silently ignored
:params kwargs: dict that is passed to Connector init
:returns: Connector
'''
if not HAS_INFOBLOX_CLIENT:
raise Exception('infoblox-client is required but does not appear '
'to be installed. It can be installed using the '
'command `pip install infoblox-client`')
if not set(kwargs.keys()).issubset(list(NIOS_PROVIDER_SPEC.keys()) + ['ssl_verify']):
raise Exception('invalid or unsupported keyword argument for connector')
for key, value in iteritems(NIOS_PROVIDER_SPEC):
if key not in kwargs:
# apply default values from NIOS_PROVIDER_SPEC since we cannot just
# assume the provider values are coming from AnsibleModule
if 'default' in value:
kwargs[key] = value['default']
# override any values with env variables unless they were
# explicitly set
env = ('INFOBLOX_%s' % key).upper()
if env in os.environ:
kwargs[key] = os.environ.get(env)
if 'validate_certs' in kwargs.keys():
kwargs['ssl_verify'] = kwargs['validate_certs']
kwargs.pop('validate_certs', None)
return Connector(kwargs)
def normalize_extattrs(value):
''' Normalize extattrs field to expected format
The module accepts extattrs as key/value pairs. This method will
transform the key/value pairs into a structure suitable for
sending across WAPI in the format of:
extattrs: {
key: {
value: <value>
}
}
'''
return dict([(k, {'value': v}) for k, v in iteritems(value)])
def flatten_extattrs(value):
''' Flatten the key/value struct for extattrs
WAPI returns extattrs field as a dict in form of:
extattrs: {
key: {
value: <value>
}
}
This method will flatten the structure to:
extattrs: {
key: value
}
'''
return dict([(k, v['value']) for k, v in iteritems(value)])
def member_normalize(member_spec):
''' Transforms the member module arguments into a valid WAPI struct
This function will transform the arguments into a structure that
is a valid WAPI structure in the format of:
{
key: <value>,
}
It will remove any arguments that are set to None since WAPI will error on
that condition.
The remainder of the value validation is performed by WAPI
Some parameters in ib_spec are passed as a list in order to pass the validation for elements.
In this function, they are converted to dictionary.
'''
member_elements = ['vip_setting', 'ipv6_setting', 'lan2_port_setting', 'mgmt_port_setting',
'pre_provisioning', 'network_setting', 'v6_network_setting',
'ha_port_setting', 'lan_port_setting', 'lan2_physical_setting',
'lan_ha_port_setting', 'mgmt_network_setting', 'v6_mgmt_network_setting']
for key in list(member_spec.keys()):
if key in member_elements and member_spec[key] is not None:
member_spec[key] = member_spec[key][0]
if isinstance(member_spec[key], dict):
member_spec[key] = member_normalize(member_spec[key])
elif isinstance(member_spec[key], list):
for x in member_spec[key]:
if isinstance(x, dict):
x = member_normalize(x)
elif member_spec[key] is None:
del member_spec[key]
return member_spec
def normalize_ib_spec(ib_spec):
result = {}
for arg in ib_spec:
result[arg] = dict([(k, v)
for k, v in iteritems(ib_spec[arg])
if k not in ('ib_req', 'transform', 'update')])
return result
class WapiBase(object):
''' Base class for implementing Infoblox WAPI API '''
provider_spec = {'provider': dict(type='dict', options=NIOS_PROVIDER_SPEC)}
def __init__(self, provider):
self.connector = get_connector(**provider)
def __getattr__(self, name):
try:
return self.__dict__[name]
except KeyError:
if name.startswith('_'):
raise AttributeError("'%s' object has no attribute '%s'" % (self.__class__.__name__, name))
return partial(self._invoke_method, name)
def _invoke_method(self, name, *args, **kwargs):
try:
method = getattr(self.connector, name)
return method(*args, **kwargs)
except InfobloxException as exc:
if hasattr(self, 'handle_exception'):
self.handle_exception(name, exc)
else:
raise
class WapiLookup(WapiBase):
''' Implements WapiBase for lookup plugins '''
def handle_exception(self, method_name, exc):
if ('text' in exc.response):
raise Exception(exc.response['text'])
else:
raise Exception(exc)
class WapiInventory(WapiBase):
''' Implements WapiBase for dynamic inventory script '''
pass
class WapiModule(WapiBase):
''' Implements WapiBase for executing a NIOS module '''
def __init__(self, module):
self.module = module
provider = module.params['provider']
try:
super(WapiModule, self).__init__(provider)
except Exception as exc:
self.module.fail_json(msg=to_text(exc))
def handle_exception(self, method_name, exc):
''' Handles any exceptions raised
This method will be called if an InfobloxException is raised for
any call to the instance of Connector and also, in case of generic
exception. This method will then gracefully fail the module.
:args exc: instance of InfobloxException
'''
if ('text' in exc.response):
self.module.fail_json(
msg=exc.response['text'],
type=exc.response['Error'].split(':')[0],
code=exc.response.get('code'),
operation=method_name
)
else:
self.module.fail_json(msg=to_native(exc))
def run(self, ib_obj_type, ib_spec):
''' Runs the module and performans configuration tasks
:args ib_obj_type: the WAPI object type to operate against
:args ib_spec: the specification for the WAPI object as a dict
:returns: a results dict
'''
update = new_name = None
state = self.module.params['state']
if state not in ('present', 'absent'):
self.module.fail_json(msg='state must be one of `present`, `absent`, got `%s`' % state)
result = {'changed': False}
obj_filter = dict([(k, self.module.params[k]) for k, v in iteritems(ib_spec) if v.get('ib_req')])
# get object reference
ib_obj_ref, update, new_name = self.get_object_ref(self.module, ib_obj_type, obj_filter, ib_spec)
proposed_object = {}
for key, value in iteritems(ib_spec):
if self.module.params[key] is not None:
if 'transform' in value:
proposed_object[key] = value['transform'](self.module)
else:
proposed_object[key] = self.module.params[key]
# If configure_by_dns is set to False and view is 'default', then delete the default dns
if not proposed_object.get('configure_for_dns') and proposed_object.get('view') == 'default'\
and ib_obj_type == NIOS_HOST_RECORD:
del proposed_object['view']
if ib_obj_ref:
if len(ib_obj_ref) > 1:
for each in ib_obj_ref:
# To check for existing A_record with same name with input A_record by IP
if each.get('ipv4addr') and each.get('ipv4addr') == proposed_object.get('ipv4addr'):
current_object = each
# To check for existing Host_record with same name with input Host_record by IP
elif each.get('ipv4addrs')[0].get('ipv4addr') and each.get('ipv4addrs')[0].get('ipv4addr')\
== proposed_object.get('ipv4addrs')[0].get('ipv4addr'):
current_object = each
# Else set the current_object with input value
else:
current_object = obj_filter
ref = None
else:
current_object = ib_obj_ref[0]
if 'extattrs' in current_object:
current_object['extattrs'] = flatten_extattrs(current_object['extattrs'])
if current_object.get('_ref'):
ref = current_object.pop('_ref')
else:
current_object = obj_filter
ref = None
# checks if the object type is member to normalize the attributes being passed
if (ib_obj_type == NIOS_MEMBER):
proposed_object = member_normalize(proposed_object)
# checks if the name's field has been updated
if update and new_name:
proposed_object['name'] = new_name
check_remove = []
if (ib_obj_type == NIOS_HOST_RECORD):
# this check is for idempotency, as if the same ip address shall be passed
# add param will be removed, and same exists true for remove case as well.
if 'ipv4addrs' in [current_object and proposed_object]:
for each in current_object['ipv4addrs']:
if each['ipv4addr'] == proposed_object['ipv4addrs'][0]['ipv4addr']:
if 'add' in proposed_object['ipv4addrs'][0]:
del proposed_object['ipv4addrs'][0]['add']
break
check_remove += each.values()
if proposed_object['ipv4addrs'][0]['ipv4addr'] not in check_remove:
if 'remove' in proposed_object['ipv4addrs'][0]:
del proposed_object['ipv4addrs'][0]['remove']
res = None
modified = not self.compare_objects(current_object, proposed_object)
if 'extattrs' in proposed_object:
proposed_object['extattrs'] = normalize_extattrs(proposed_object['extattrs'])
# Checks if nios_next_ip param is passed in ipv4addrs/ipv4addr args
proposed_object = self.check_if_nios_next_ip_exists(proposed_object)
if state == 'present':
if ref is None:
if not self.module.check_mode:
self.create_object(ib_obj_type, proposed_object)
result['changed'] = True
# Check if NIOS_MEMBER and the flag to call function create_token is set
elif (ib_obj_type == NIOS_MEMBER) and (proposed_object['create_token']):
proposed_object = None
# the function creates a token that can be used by a pre-provisioned member to join the grid
result['api_results'] = self.call_func('create_token', ref, proposed_object)
result['changed'] = True
elif modified:
if 'ipv4addrs' in proposed_object:
if ('add' not in proposed_object['ipv4addrs'][0]) and ('remove' not in proposed_object['ipv4addrs'][0]):
self.check_if_recordname_exists(obj_filter, ib_obj_ref, ib_obj_type, current_object, proposed_object)
if (ib_obj_type in (NIOS_HOST_RECORD, NIOS_NETWORK_VIEW, NIOS_DNS_VIEW)):
run_update = True
proposed_object = self.on_update(proposed_object, ib_spec)
if 'ipv4addrs' in proposed_object:
if ('add' or 'remove') in proposed_object['ipv4addrs'][0]:
run_update, proposed_object = self.check_if_add_remove_ip_arg_exists(proposed_object)
if run_update:
res = self.update_object(ref, proposed_object)
result['changed'] = True
else:
res = ref
if (ib_obj_type in (NIOS_A_RECORD, NIOS_AAAA_RECORD, NIOS_PTR_RECORD, NIOS_SRV_RECORD)):
# popping 'view' key as update of 'view' is not supported with respect to a:record/aaaa:record/srv:record/ptr:record
proposed_object = self.on_update(proposed_object, ib_spec)
del proposed_object['view']
if not self.module.check_mode:
res = self.update_object(ref, proposed_object)
result['changed'] = True
elif 'network_view' in proposed_object:
proposed_object.pop('network_view')
result['changed'] = True
if not self.module.check_mode and res is None:
proposed_object = self.on_update(proposed_object, ib_spec)
self.update_object(ref, proposed_object)
result['changed'] = True
elif state == 'absent':
if ref is not None:
if 'ipv4addrs' in proposed_object:
if 'remove' in proposed_object['ipv4addrs'][0]:
self.check_if_add_remove_ip_arg_exists(proposed_object)
self.update_object(ref, proposed_object)
result['changed'] = True
elif not self.module.check_mode:
self.delete_object(ref)
result['changed'] = True
return result
def check_if_recordname_exists(self, obj_filter, ib_obj_ref, ib_obj_type, current_object, proposed_object):
''' Send POST request if host record input name and retrieved ref name is same,
but input IP and retrieved IP is different'''
if 'name' in (obj_filter and ib_obj_ref[0]) and ib_obj_type == NIOS_HOST_RECORD:
obj_host_name = obj_filter['name']
ref_host_name = ib_obj_ref[0]['name']
if 'ipv4addrs' in (current_object and proposed_object):
current_ip_addr = current_object['ipv4addrs'][0]['ipv4addr']
proposed_ip_addr = proposed_object['ipv4addrs'][0]['ipv4addr']
elif 'ipv6addrs' in (current_object and proposed_object):
current_ip_addr = current_object['ipv6addrs'][0]['ipv6addr']
proposed_ip_addr = proposed_object['ipv6addrs'][0]['ipv6addr']
if obj_host_name == ref_host_name and current_ip_addr != proposed_ip_addr:
self.create_object(ib_obj_type, proposed_object)
def check_if_nios_next_ip_exists(self, proposed_object):
''' Check if nios_next_ip argument is passed in ipaddr while creating
host record, if yes then format proposed object ipv4addrs and pass
func:nextavailableip and ipaddr range to create hostrecord with next
available ip in one call to avoid any race condition '''
if 'ipv4addrs' in proposed_object:
if 'nios_next_ip' in proposed_object['ipv4addrs'][0]['ipv4addr']:
ip_range = check_type_dict(proposed_object['ipv4addrs'][0]['ipv4addr'])['nios_next_ip']
proposed_object['ipv4addrs'][0]['ipv4addr'] = NIOS_NEXT_AVAILABLE_IP + ':' + ip_range
elif 'ipv4addr' in proposed_object:
if 'nios_next_ip' in proposed_object['ipv4addr']:
ip_range = check_type_dict(proposed_object['ipv4addr'])['nios_next_ip']
proposed_object['ipv4addr'] = NIOS_NEXT_AVAILABLE_IP + ':' + ip_range
return proposed_object
def check_if_add_remove_ip_arg_exists(self, proposed_object):
'''
This function shall check if add/remove param is set to true and
is passed in the args, then we will update the proposed dictionary
to add/remove IP to existing host_record, if the user passes false
param with the argument nothing shall be done.
:returns: True if param is changed based on add/remove, and also the
changed proposed_object.
'''
update = False
if 'add' in proposed_object['ipv4addrs'][0]:
if proposed_object['ipv4addrs'][0]['add']:
proposed_object['ipv4addrs+'] = proposed_object['ipv4addrs']
del proposed_object['ipv4addrs']
del proposed_object['ipv4addrs+'][0]['add']
update = True
else:
del proposed_object['ipv4addrs'][0]['add']
elif 'remove' in proposed_object['ipv4addrs'][0]:
if proposed_object['ipv4addrs'][0]['remove']:
proposed_object['ipv4addrs-'] = proposed_object['ipv4addrs']
del proposed_object['ipv4addrs']
del proposed_object['ipv4addrs-'][0]['remove']
update = True
else:
del proposed_object['ipv4addrs'][0]['remove']
return update, proposed_object
def issubset(self, item, objects):
''' Checks if item is a subset of objects
:args item: the subset item to validate
:args objects: superset list of objects to validate against
:returns: True if item is a subset of one entry in objects otherwise
this method will return None
'''
for obj in objects:
if isinstance(item, dict):
if all(entry in obj.items() for entry in item.items()):
return True
else:
if item in obj:
return True
def compare_objects(self, current_object, proposed_object):
for key, proposed_item in iteritems(proposed_object):
current_item = current_object.get(key)
# if proposed has a key that current doesn't then the objects are
# not equal and False will be immediately returned
if current_item is None:
return False
elif isinstance(proposed_item, list):
if key == 'aliases':
if set(current_item) != set(proposed_item):
return False
for subitem in proposed_item:
if not self.issubset(subitem, current_item):
return False
elif isinstance(proposed_item, dict):
return self.compare_objects(current_item, proposed_item)
else:
if current_item != proposed_item:
return False
return True
def get_object_ref(self, module, ib_obj_type, obj_filter, ib_spec):
''' this function gets the reference object of pre-existing nios objects '''
update = False
old_name = new_name = None
if ('name' in obj_filter):
# gets and returns the current object based on name/old_name passed
try:
name_obj = check_type_dict(obj_filter['name'])
old_name = name_obj['old_name']
new_name = name_obj['new_name']
except TypeError:
name = obj_filter['name']
if old_name and new_name:
if (ib_obj_type == NIOS_HOST_RECORD):
test_obj_filter = dict([('name', old_name), ('view', obj_filter['view'])])
elif (ib_obj_type in (NIOS_AAAA_RECORD, NIOS_A_RECORD)):
test_obj_filter = obj_filter
else:
test_obj_filter = dict([('name', old_name)])
# get the object reference
ib_obj = self.get_object(ib_obj_type, test_obj_filter, return_fields=list(ib_spec.keys()))
if ib_obj:
obj_filter['name'] = new_name
else:
test_obj_filter['name'] = new_name
ib_obj = self.get_object(ib_obj_type, test_obj_filter, return_fields=list(ib_spec.keys()))
update = True
return ib_obj, update, new_name
if (ib_obj_type == NIOS_HOST_RECORD):
# to check only by name if dns bypassing is set
if not obj_filter['configure_for_dns']:
test_obj_filter = dict([('name', name)])
else:
test_obj_filter = dict([('name', name), ('view', obj_filter['view'])])
elif (ib_obj_type == NIOS_IPV4_FIXED_ADDRESS or ib_obj_type == NIOS_IPV6_FIXED_ADDRESS and 'mac' in obj_filter):
test_obj_filter = dict([['mac', obj_filter['mac']]])
elif (ib_obj_type == NIOS_A_RECORD):
# resolves issue where a_record with uppercase name was returning null and was failing
test_obj_filter = obj_filter
test_obj_filter['name'] = test_obj_filter['name'].lower()
# resolves issue where multiple a_records with same name and different IP address
try:
ipaddr_obj = check_type_dict(obj_filter['ipv4addr'])
ipaddr = ipaddr_obj['old_ipv4addr']
except TypeError:
ipaddr = obj_filter['ipv4addr']
test_obj_filter['ipv4addr'] = ipaddr
elif (ib_obj_type == NIOS_TXT_RECORD):
# resolves issue where multiple txt_records with same name and different text
test_obj_filter = obj_filter
try:
text_obj = check_type_dict(obj_filter['text'])
txt = text_obj['old_text']
except TypeError:
txt = obj_filter['text']
test_obj_filter['text'] = txt
# check if test_obj_filter is empty copy passed obj_filter
else:
test_obj_filter = obj_filter
ib_obj = self.get_object(ib_obj_type, test_obj_filter.copy(), return_fields=list(ib_spec.keys()))
elif (ib_obj_type == NIOS_A_RECORD):
# resolves issue where multiple a_records with same name and different IP address
test_obj_filter = obj_filter
try:
ipaddr_obj = check_type_dict(obj_filter['ipv4addr'])
ipaddr = ipaddr_obj['old_ipv4addr']
except TypeError:
ipaddr = obj_filter['ipv4addr']
test_obj_filter['ipv4addr'] = ipaddr
ib_obj = self.get_object(ib_obj_type, test_obj_filter.copy(), return_fields=list(ib_spec.keys()))
elif (ib_obj_type == NIOS_TXT_RECORD):
# resolves issue where multiple txt_records with same name and different text
test_obj_filter = obj_filter
try:
text_obj = check_type_dict(obj_filter['text'])
txt = text_obj['old_text']
except TypeError:
txt = obj_filter['text']
test_obj_filter['text'] = txt
ib_obj = self.get_object(ib_obj_type, test_obj_filter.copy(), return_fields=list(ib_spec.keys()))
elif (ib_obj_type == NIOS_ZONE):
# del key 'restart_if_needed' as nios_zone get_object fails with the key present
temp = ib_spec['restart_if_needed']
del ib_spec['restart_if_needed']
ib_obj = self.get_object(ib_obj_type, obj_filter.copy(), return_fields=list(ib_spec.keys()))
# reinstate restart_if_needed if ib_obj is none, meaning there's no existing nios_zone ref
if not ib_obj:
ib_spec['restart_if_needed'] = temp
elif (ib_obj_type == NIOS_MEMBER):
# del key 'create_token' as nios_member get_object fails with the key present
temp = ib_spec['create_token']
del ib_spec['create_token']
ib_obj = self.get_object(ib_obj_type, obj_filter.copy(), return_fields=list(ib_spec.keys()))
if temp:
# reinstate 'create_token' key
ib_spec['create_token'] = temp
else:
ib_obj = self.get_object(ib_obj_type, obj_filter.copy(), return_fields=list(ib_spec.keys()))
return ib_obj, update, new_name
def on_update(self, proposed_object, ib_spec):
''' Event called before the update is sent to the API endpoing
This method will allow the final proposed object to be changed
and/or keys filtered before it is sent to the API endpoint to
be processed.
:args proposed_object: A dict item that will be encoded and sent
the API endpoint with the updated data structure
:returns: updated object to be sent to API endpoint
'''
keys = set()
for key, value in iteritems(proposed_object):
update = ib_spec[key].get('update', True)
if not update:
keys.add(key)
return dict([(k, v) for k, v in iteritems(proposed_object) if k not in keys])
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