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#!/usr/bin/python
# (c) 2018, NetApp, Inc
# GNU General Public License v3.0+ (see COPYING or
# https://www.gnu.org/licenses/gpl-3.0.txt)
'''
Element Software manage initiators
'''
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = '''
module: na_elementsw_initiators
short_description: Manage Element SW initiators
extends_documentation_fragment:
- netapp.elementsw.netapp.solidfire
version_added: 2.8.0
author: NetApp Ansible Team (@carchi8py) <ng-ansibleteam@netapp.com>
description:
- Manage Element Software initiators that allow external clients access to volumes.
options:
initiators:
description: A list of objects containing characteristics of each initiator.
suboptions:
name:
description: The name of the initiator.
type: str
required: true
alias:
description: The friendly name assigned to this initiator.
type: str
initiator_id:
description: The numeric ID of the initiator.
type: int
volume_access_group_id:
description: volumeAccessGroupID to which this initiator belongs.
type: int
attributes:
description: A set of JSON attributes to assign to this initiator.
type: dict
type: list
elements: dict
state:
description:
- Whether the specified initiator should exist or not.
choices: ['present', 'absent']
default: present
type: str
'''
EXAMPLES = """
- name: Manage initiators
tags:
- na_elementsw_initiators
na_elementsw_initiators:
hostname: "{{ elementsw_hostname }}"
username: "{{ elementsw_username }}"
password: "{{ elementsw_password }}"
initiators:
- name: a
alias: a1
initiator_id: 1
volume_access_group_id: 1
attributes: {"key": "value"}
- name: b
alias: b2
initiator_id: 2
volume_access_group_id: 2
state: present
"""
RETURN = """
msg:
description: Success message
returned: success
type: str
"""
import traceback
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils._text import to_native
import ansible_collections.netapp.elementsw.plugins.module_utils.netapp as netapp_utils
from ansible_collections.netapp.elementsw.plugins.module_utils.netapp_elementsw_module import NaElementSWModule
from ansible_collections.netapp.elementsw.plugins.module_utils.netapp_module import NetAppModule
HAS_SF_SDK = netapp_utils.has_sf_sdk()
if HAS_SF_SDK:
from solidfire.models import ModifyInitiator
class ElementSWInitiators(object):
"""
Element Software Manage Element SW initiators
"""
def __init__(self):
self.argument_spec = netapp_utils.ontap_sf_host_argument_spec()
self.argument_spec.update(dict(
initiators=dict(
type='list',
elements='dict',
options=dict(
name=dict(type='str', required=True),
alias=dict(type='str', default=None),
initiator_id=dict(type='int', default=None),
volume_access_group_id=dict(type='int', default=None),
attributes=dict(type='dict', default=None),
)
),
state=dict(choices=['present', 'absent'], default='present'),
))
self.module = AnsibleModule(
argument_spec=self.argument_spec,
supports_check_mode=True
)
self.na_helper = NetAppModule()
self.parameters = self.na_helper.set_parameters(self.module.params)
self.debug = list()
if HAS_SF_SDK is False:
self.module.fail_json(msg="Unable to import the SolidFire Python SDK")
else:
self.sfe = netapp_utils.create_sf_connection(module=self.module)
self.elementsw_helper = NaElementSWModule(self.sfe)
# iterate over each user-provided initiator
for initiator in self.parameters.get('initiators'):
# add telemetry attributes
if 'attributes' in initiator and initiator['attributes']:
initiator['attributes'].update(self.elementsw_helper.set_element_attributes(source='na_elementsw_initiators'))
else:
initiator['attributes'] = self.elementsw_helper.set_element_attributes(source='na_elementsw_initiators')
def compare_initiators(self, user_initiator, existing_initiator):
"""
compare user input initiator with existing dict
:return: True if matched, False otherwise
"""
if user_initiator is None or existing_initiator is None:
return False
changed = False
for param in user_initiator:
# lookup initiator_name instead of name
if param == 'name':
if user_initiator['name'] == existing_initiator['initiator_name']:
pass
elif param == 'initiator_id':
# can't change the key
pass
elif user_initiator[param] == existing_initiator[param]:
pass
else:
self.debug.append('Initiator: %s. Changed: %s from: %s to %s' %
(user_initiator['name'], param, str(existing_initiator[param]), str(user_initiator[param])))
changed = True
return changed
def initiator_to_dict(self, initiator_obj):
"""
converts initiator class object to dict
:return: reconstructed initiator dict
"""
known_params = ['initiator_name',
'alias',
'initiator_id',
'volume_access_groups',
'volume_access_group_id',
'attributes']
initiator_dict = {}
# missing parameter cause error
# so assign defaults
for param in known_params:
initiator_dict[param] = getattr(initiator_obj, param, None)
if initiator_dict['volume_access_groups'] is not None:
if len(initiator_dict['volume_access_groups']) == 1:
initiator_dict['volume_access_group_id'] = initiator_dict['volume_access_groups'][0]
elif len(initiator_dict['volume_access_groups']) > 1:
self.module.fail_json(msg="Only 1 access group is supported, found: %s" % repr(initiator_obj))
del initiator_dict['volume_access_groups']
return initiator_dict
def find_initiator(self, id=None, name=None):
"""
find a specific initiator
:return: initiator dict
"""
initiator_details = None
if self.all_existing_initiators is None:
return initiator_details
for initiator in self.all_existing_initiators:
# if name is provided or
# if id is provided
if name is not None:
if initiator.initiator_name == name:
initiator_details = self.initiator_to_dict(initiator)
elif id is not None:
if initiator.initiator_id == id:
initiator_details = self.initiator_to_dict(initiator)
else:
# if neither id nor name provided
# return everything
initiator_details = self.all_existing_initiators
return initiator_details
@staticmethod
def rename_key(obj, old_name, new_name):
obj[new_name] = obj.pop(old_name)
def create_initiator(self, initiator):
"""
create initiator
"""
# SF SDK is using camelCase for this one
self.rename_key(initiator, 'volume_access_group_id', 'volumeAccessGroupID')
# create_initiators needs an array
initiator_list = [initiator]
try:
self.sfe.create_initiators(initiator_list)
except Exception as exception_object:
self.module.fail_json(msg='Error creating initiator %s' % (to_native(exception_object)),
exception=traceback.format_exc())
def delete_initiator(self, initiator):
"""
delete initiator
"""
# delete_initiators needs an array
initiator_id_array = [initiator]
try:
self.sfe.delete_initiators(initiator_id_array)
except Exception as exception_object:
self.module.fail_json(msg='Error deleting initiator %s' % (to_native(exception_object)),
exception=traceback.format_exc())
def modify_initiator(self, initiator, existing_initiator):
"""
modify initiator
"""
# create the new initiator dict
# by merging old and new values
merged_initiator = existing_initiator.copy()
# can't change the key
del initiator['initiator_id']
merged_initiator.update(initiator)
# we MUST create an object before sending
# the new initiator to modify_initiator
initiator_object = ModifyInitiator(initiator_id=merged_initiator['initiator_id'],
alias=merged_initiator['alias'],
volume_access_group_id=merged_initiator['volume_access_group_id'],
attributes=merged_initiator['attributes'])
initiator_list = [initiator_object]
try:
self.sfe.modify_initiators(initiators=initiator_list)
except Exception as exception_object:
self.module.fail_json(msg='Error modifying initiator: %s' % (to_native(exception_object)),
exception=traceback.format_exc())
def apply(self):
"""
configure initiators
"""
changed = False
result_message = None
# get all user provided initiators
input_initiators = self.parameters.get('initiators')
# get all initiators
# store in a cache variable
self.all_existing_initiators = self.sfe.list_initiators().initiators
# iterate over each user-provided initiator
for in_initiator in input_initiators:
if self.parameters.get('state') == 'present':
# check if initiator_id is provided and exists
if 'initiator_id' in in_initiator and in_initiator['initiator_id'] is not None and \
self.find_initiator(id=in_initiator['initiator_id']) is not None:
if self.compare_initiators(in_initiator, self.find_initiator(id=in_initiator['initiator_id'])):
changed = True
result_message = 'modifying initiator(s)'
self.modify_initiator(in_initiator, self.find_initiator(id=in_initiator['initiator_id']))
# otherwise check if name is provided and exists
elif 'name' in in_initiator and in_initiator['name'] is not None and self.find_initiator(name=in_initiator['name']) is not None:
if self.compare_initiators(in_initiator, self.find_initiator(name=in_initiator['name'])):
changed = True
result_message = 'modifying initiator(s)'
self.modify_initiator(in_initiator, self.find_initiator(name=in_initiator['name']))
# this is a create op if initiator doesn't exist
else:
changed = True
result_message = 'creating initiator(s)'
self.create_initiator(in_initiator)
elif self.parameters.get('state') == 'absent':
# delete_initiators only processes ids
# so pass ids of initiators to method
if 'name' in in_initiator and in_initiator['name'] is not None and \
self.find_initiator(name=in_initiator['name']) is not None:
changed = True
result_message = 'deleting initiator(s)'
self.delete_initiator(self.find_initiator(name=in_initiator['name'])['initiator_id'])
elif 'initiator_id' in in_initiator and in_initiator['initiator_id'] is not None and \
self.find_initiator(id=in_initiator['initiator_id']) is not None:
changed = True
result_message = 'deleting initiator(s)'
self.delete_initiator(in_initiator['initiator_id'])
if self.module.check_mode is True:
result_message = "Check mode, skipping changes"
if self.debug:
result_message += ". %s" % self.debug
self.module.exit_json(changed=changed, msg=result_message)
def main():
"""
Main function
"""
na_elementsw_initiators = ElementSWInitiators()
na_elementsw_initiators.apply()
if __name__ == '__main__':
main()
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