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New Module : aos_ip_pool as part of network/aos (#21044)

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* Initial version of aos_ip_pool module

* Add examples for IP Pool

* Break down ip_pool into smaller function

* Refactor do_load_resource

* Add get_display_name_from_file

* Add ‘src’ as an option to load ip pool from JSON file

* Rename directory network/apstra to network/aos

* Remove exception handling temporary

* Remove all ‘Exception as XX’ to be python 2.4 compatible

* Replace ‘== False’ with ‘is False’ for PEP8 Test

* Update documentation to be Yaml compatible

* Lisg all method imported from module_utils.aos

* Refactor to align with collection.find() changes

* Update examples by @gundalow’s  recommendations

* Update Documentation per @gundalow’s recommendations

* Change the license per @gundalow recommendation

* Add exception handling for get_aos_session

* Change Auth format and add check_aos_version() to check minimum version

* Add a check for minimum version

* Refactor ‘src’ into ‘content’ to allow more options
Remove get_display_name_from_file in aos.py
Add content_to_dict in aos.py

* Fix variable name in do_load_resource

* Add mention of aos.py in module_utilities doc

* Add try/except for import yaml

* Add try/Except around main block of code and function

* Refactor to auto detect content_format, update doc accordingly

* Change create_new_ip_pool inputs

* Remove unused import

* Remove in_use as it’s never used

* Fix doc format

* Add version number in requirement doc
pull/21213/head
Damien 8 years ago committed by John R Barker
parent 22701806c3
commit b71a62283c
4 changed files with 529 additions and 3 deletions
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1
docs/docsite/rst/dev_guide/developing_module_utilities.rst
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@ -10,6 +10,7 @@ The following is a list of module_utils files and a general description. The mod
- a10.py - Utilities used by the a10_server module to manage A10 Networks devices.
- api.py - Adds shared support for generic API modules.
- aos.py - Module support utilities for managing Apstra AOS Server.
- asa.py - Module support utilities for managing Cisco ASA network devices.
- azure_rm_common.py - Definitions and utilities for Microsoft Azure Resource Manager template deployments.
- basic.py - General definitions and helper utilities for Ansible modules.

181
lib/ansible/module_utils/aos.py
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#
# Copyright (c) 2017 Apstra Inc, <community@apstra.com>
#
# 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.
#
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
"""
This module adds shared support for Apstra AOS modules
In order to use this module, include it as part of your module
from ansible.module_utils.aos import *
"""
import json
from distutils.version import LooseVersion
from ansible.module_utils.pycompat24 import get_exception
try:
import yaml
HAS_YAML = True
except ImportError:
HAS_YAML = False
try:
from apstra.aosom.session import Session
HAS_AOS_PYEZ = True
except ImportError:
HAS_AOS_PYEZ = False
def check_aos_version(module, min=False):
"""
Check if the library aos-pyez is present.
If provided, also check if the minimum version requirement is met
"""
if not HAS_AOS_PYEZ:
module.fail_json(msg='aos-pyez is not installed. Please see details '
'here: https://github.com/Apstra/aos-pyez')
elif min:
import apstra.aosom
AOS_PYEZ_VERSION = apstra.aosom.__version__
if not LooseVersion(AOS_PYEZ_VERSION) >= LooseVersion(min):
module.fail_json(msg='aos-pyez >= %s is required for this module' % min)
return True
def get_aos_session(module, auth):
"""
Resume an existing session and return an AOS object.
Args:
auth (dict): An AOS session as obtained by aos_login module blocks::
dict( token=<token>,
server=<ip>,
port=<port>
)
Return:
Aos object
"""
check_aos_version(module)
aos = Session()
aos.session = auth
return aos
def find_collection_item(collection, item_name=False, item_id=False):
"""
Find collection_item based on name or id from a collection object
Both Collection_item and Collection Objects are provided by aos-pyez library
Return
collection_item: object corresponding to the collection type
"""
my_dict = None
if item_name:
my_dict = collection.find(label=item_name)
elif item_id:
my_dict = collection.find(uid=item_id)
if my_dict is None:
return collection['']
else:
return my_dict
def content_to_dict(module, content):
"""
Convert 'content' into a Python Dict based on 'content_format'
"""
# if not HAS_YAML:
# module.fail_json(msg="Python Library Yaml is not present, mandatory to use 'content'")
content_dict = None
# try:
# content_dict = json.loads(content.replace("\'", '"'))
# except:
# module.fail_json(msg="Unable to convert 'content' from JSON, please check if valid")
#
# elif format in ['yaml', 'var']:
try:
content_dict = yaml.load(content)
if not isinstance(content_dict, dict):
raise
# Check if dict is empty and return an error if it's
if not content_dict:
raise
except:
module.fail_json(msg="Unable to convert 'content' to a dict, please check if valid")
# replace the string with the dict
module.params['content'] = content_dict
return content_dict
def do_load_resource(module, collection, name):
"""
Create a new object (collection.item) by loading a datastructure directly
"""
try:
item = find_collection_item(collection, name, '')
except:
module.fail_json(msg="Ans error occured while running 'find_collection_item'")
if item.exists:
module.exit_json( changed=False,
name=item.name,
id=item.id,
value=item.value )
# If not in check mode, apply the changes
if not module.check_mode:
try:
item.datum = module.params['content']
item.write()
except:
e = get_exception()
module.fail_json(msg="Unable to write item content : %r" % e)
module.exit_json( changed=True,
name=item.name,
id=item.id,
value=item.value )

0
lib/ansible/modules/network/aos/__init__.py
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344
lib/ansible/modules/network/aos/aos_ip_pool.py
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#!/usr/bin/python
#
# (c) 2017 Apstra Inc, <community@apstra.com>
#
# This file is part of Ansible
#
# Ansible 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.
#
# Ansible 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 Ansible. If not, see <http://www.gnu.org/licenses/>.
#
ANSIBLE_METADATA = {'status': ['preview'],
'supported_by': 'community',
'version': '1.0'}
DOCUMENTATION = '''
---
module: aos_ip_pool
author: Damien Garros (@dgarros)
version_added: "2.3"
short_description: Manage AOS IP Pool
description:
- Apstra AOS Ip Pool module let you manage your IP Pool easily. You can create
create and delete IP Pool by Name, ID or by using a JSON File. This module
is idempotent and support the I(check) mode. It's using the AOS REST API
requirements:
- "aos-pyez >= 0.6.0"
options:
session:
description:
- An existing AOS session as obtained by aos_login module
required: true
name:
description:
- Name of the IP Pool to manage.
Only one of I(name), I(id) or I(content) can be set.
required: false
id:
description:
- AOS Id of the IP Pool to manage (can't be used to create a new IP Pool),
Only one of I(name), I(id) or I(content) can be set.
required: false
content:
description:
- Datastructure of the IP Pool to create. The data can be in YAML / JSON or
directly a variable. It's the same datastructure that is returned
on success in I(value).
required: false
state:
description:
- Indicate what is the expected state of the IP Pool (present or not)
default: present
choices: ['present', 'absent']
required: false
subnets:
description:
- List of subnet that needs to be part of the IP Pool
required: false
'''
EXAMPLES = '''
- name: "Create an IP Pool with one subnet"
aos_ip_pool:
session: "{{ session_ok }}"
name: "my-ip-pool"
subnets: [ 172.10.0.0/16 ]
state: present
- name: "Create an IP Pool with multiple subnets"
aos_ip_pool:
session: "{{ session_ok }}"
name: "my-other-ip-pool"
subnets: [ 172.10.0.0/16, 192.168.0.0./24 ]
state: present
- name: "Check if an IP Pool exist with same subnets by ID"
aos_ip_pool:
session: "{{ session_ok }}"
name: "45ab26fc-c2ed-4307-b330-0870488fa13e"
subnets: [ 172.10.0.0/16, 192.168.0.0./24 ]
state: present
- name: "Delete an IP Pool by name"
aos_ip_pool:
session: "{{ session }}"
name: "my-ip-pool"
state: absent
- name: "Delete an IP pool by id"
aos_ip_pool:
session: "{{ session }}"
id: "45ab26fc-c2ed-4307-b330-0870488fa13e"
state: absent
# Save an IP Pool to a file
- name: "Access IP Pool 1/3"
aos_ip_pool:
session: "{{ session_ok }}"
name: "my-ip-pool"
subnets: [ 172.10.0.0/16, 172.12.0.0/16 ]
state: present
register: ip_pool
- name: "Save Ip Pool into a file in JSON 2/3"
copy:
content: "{{ ip_pool.value | to_nice_json }}"
dest: ip_pool_saved.json
- name: "Save Ip Pool into a file in YAML 3/3"
copy:
content: "{{ ip_pool.value | to_nice_yaml }}"
dest: ip_pool_saved.yaml
- name: "Load IP Pool from a JSON file"
aos_ip_pool:
session: "{{ session_ok }}"
content: "{{ lookup('file', 'resources/ip_pool_saved.json') }}"
state: present
- name: "Load IP Pool from a YAML file"
aos_ip_pool:
session: "{{ session_ok }}"
content: "{{ lookup('file', 'resources/ip_pool_saved.yaml') }}"
state: present
- name: "Load IP Pool from a Variable"
aos_ip_pool:
session: "{{ session_ok }}"
content:
display_name: my-ip-pool
id: 4276738d-6f86-4034-9656-4bff94a34ea7
subnets:
- network: 172.10.0.0/16
- network: 172.12.0.0/16
state: present
'''
RETURNS = '''
name:
description: Name of the IP Pool
returned: always
type: str
sample: Server-IpAddrs
id:
description: AOS unique ID assigned to the IP Pool
returned: always
type: str
sample: fcc4ac1c-e249-4fe7-b458-2138bfb44c06
value:
description: Value of the object as returned by the AOS Server
returned: always
type: dict
sample: {'...'}
'''
import json
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.aos import get_aos_session, find_collection_item, do_load_resource, check_aos_version, content_to_dict
def get_list_of_subnets(ip_pool):
subnets = []
for subnet in ip_pool.value['subnets']:
subnets.append(subnet['network'])
return subnets
def create_new_ip_pool(ip_pool, name, subnets):
# Create value
datum = dict(display_name=name, subnets=[])
for subnet in subnets:
datum['subnets'].append(dict(network=subnet))
ip_pool.datum = datum
## Write to AOS
return ip_pool.write()
#########################################################
# State Processing
#########################################################
def ip_pool_absent(module, aos, my_pool):
margs = module.params
# If the module do not exist, return directly
if my_pool.exists is False:
module.exit_json(changed=False, name=margs['name'], id='', value={})
## Check if object is currently in Use or Not
# If in Use, return an error
if my_pool.value:
if my_pool.value['status'] != 'not_in_use':
module.fail_json(msg="unable to delete this ip Pool, currently in use")
else:
module.fail_json(msg="Ip Pool object has an invalid format, value['status'] must be defined")
# If not in check mode, delete Ip Pool
if not module.check_mode:
try:
my_pool.delete()
except:
module.fail_json(msg="An error occured, while trying to delete the IP Pool")
module.exit_json( changed=True,
name=my_pool.name,
id=my_pool.id,
value={} )
def ip_pool_present(module, aos, my_pool):
margs = module.params
# if content is defined, create object from Content
try:
if margs['content'] is not None:
if 'display_name' in module.params['content'].keys():
do_load_resource(module, aos.IpPools, module.params['content']['display_name'])
else:
module.fail_json(msg="Unable to find display_name in 'content', Mandatory")
except:
module.fail_json(msg="Unable to load resource from content, something went wrong")
# if ip_pool doesn't exist already, create a new one
if my_pool.exists is False and 'name' not in margs.keys():
module.fail_json(msg="Name is mandatory for module that don't exist currently")
elif my_pool.exists is False:
if not module.check_mode:
try:
my_new_pool = create_new_ip_pool(my_pool, margs['name'], margs['subnets'])
my_pool = my_new_pool
except:
module.fail_json(msg="An error occured while trying to create a new IP Pool ")
module.exit_json( changed=True,
name=my_pool.name,
id=my_pool.id,
value=my_pool.value )
# if pool already exist, check if list of network is the same
# if same just return the object and report change false
if set(get_list_of_subnets(my_pool)) == set(margs['subnets']):
module.exit_json( changed=False,
name=my_pool.name,
id=my_pool.id,
value=my_pool.value )
else:
module.fail_json(msg="ip_pool already exist but value is different, currently not supported to update a module")
#########################################################
# Main Function
#########################################################
def ip_pool(module):
margs = module.params
try:
aos = get_aos_session(module, margs['session'])
except:
module.fail_json(msg="Unable to login to the AOS server")
item_name = False
item_id = False
if margs['content'] is not None:
content = content_to_dict(module, margs['content'] )
if 'display_name' in content.keys():
item_name = content['display_name']
else:
module.fail_json(msg="Unable to extract 'display_name' from 'content'")
elif margs['name'] is not None:
item_name = margs['name']
elif margs['id'] is not None:
item_id = margs['id']
#----------------------------------------------------
# Find Object if available based on ID or Name
#----------------------------------------------------
try:
my_pool = find_collection_item(aos.IpPools,
item_name=item_name,
item_id=item_id)
except:
module.fail_json(msg="Unable to find the IP Pool based on name or ID, something went wrong")
#----------------------------------------------------
# Proceed based on State value
#----------------------------------------------------
if margs['state'] == 'absent':
ip_pool_absent(module, aos, my_pool)
elif margs['state'] == 'present':
ip_pool_present(module, aos, my_pool)
def main():
module = AnsibleModule(
argument_spec=dict(
session=dict(required=True, type="dict"),
name=dict(required=False ),
id=dict(required=False ),
content=dict(required=False, type="json"),
state=dict( required=False,
choices=['present', 'absent'],
default="present"),
subnets=dict(required=False, type="list")
),
mutually_exclusive = [('name', 'id', 'content')],
required_one_of=[('name', 'id', 'content')],
supports_check_mode=True
)
# Check if aos-pyez is present and match the minimum version
check_aos_version(module, '0.6.0')
ip_pool(module)
if __name__ == "__main__":
main()
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