e7c06ecf04
Signed-off-by: Jiri Podivin <jpodivin@redhat.com> Change-Id: Ie936821e3b8055d91bfa3cec992c68a87bf84db2
134 lines
3.4 KiB
Python
134 lines
3.4 KiB
Python
#!/usr/bin/env python
|
|
|
|
# -*- coding: utf-8 -*-
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
|
# implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
"""ip_range module
|
|
Used by the `ctlplane_ip_range` role.
|
|
"""
|
|
import netaddr
|
|
|
|
from ansible.module_utils.basic import AnsibleModule
|
|
from yaml import safe_load as yaml_safe_load
|
|
|
|
DOCUMENTATION = '''
|
|
---
|
|
module: ip_range
|
|
short_description: Check the size of an IP range
|
|
description:
|
|
- Check if the size of an IP range against a minimum value.
|
|
- Used by the `ctlplane_ip_range` role.
|
|
- "Owned by the DFG: DF"
|
|
options:
|
|
start:
|
|
required: true
|
|
description:
|
|
- Start IP
|
|
type: str
|
|
end:
|
|
required: true
|
|
description:
|
|
- End IP
|
|
type: str
|
|
min_size:
|
|
required: true
|
|
description:
|
|
- Minum size of the range
|
|
type: int
|
|
author: "Tomas Sedovic"
|
|
'''
|
|
|
|
EXAMPLES = '''
|
|
- hosts: webservers
|
|
tasks:
|
|
- name: Check the IP range
|
|
ip_range:
|
|
start: 192.0.2.5
|
|
end: 192.0.2.24
|
|
min_size: 15
|
|
'''
|
|
|
|
|
|
def check_arguments(start, end, min_size):
|
|
'''Validate format of arguments'''
|
|
|
|
errors = []
|
|
|
|
# Check format of arguments
|
|
try:
|
|
startIP = netaddr.IPAddress(start)
|
|
except netaddr.core.AddrFormatError:
|
|
errors.append('Argument start ({}) must be an IP'.format(start))
|
|
|
|
try:
|
|
endIP = netaddr.IPAddress(end)
|
|
except netaddr.core.AddrFormatError:
|
|
errors.append('Argument end ({}) must be an IP'.format(end))
|
|
|
|
if not errors:
|
|
if startIP.version != endIP.version:
|
|
errors.append("Arguments start, end must share the same IP "
|
|
"version")
|
|
if startIP > endIP:
|
|
errors.append("Lower IP bound ({}) must be smaller than upper "
|
|
"bound ({})".format(startIP, endIP))
|
|
|
|
if min_size < 0:
|
|
errors.append('Argument min_size({}) must be greater than 0'
|
|
.format(min_size))
|
|
|
|
return errors
|
|
|
|
|
|
def check_IP_range(start, end, min_size):
|
|
'''Compare IP range with minimum size'''
|
|
|
|
errors = []
|
|
iprange = netaddr.IPRange(start, end)
|
|
|
|
if len(iprange) < min_size:
|
|
errors = [
|
|
'The IP range {} - {} contains {} addresses.'.format(
|
|
start, end, len(iprange)),
|
|
'This might not be enough for the deployment or later scaling.'
|
|
]
|
|
|
|
return errors
|
|
|
|
|
|
def main():
|
|
module = AnsibleModule(
|
|
argument_spec=yaml_safe_load(DOCUMENTATION)['options']
|
|
)
|
|
|
|
start = module.params.get('start')
|
|
end = module.params.get('end')
|
|
min_size = module.params.get('min_size')
|
|
|
|
# Check arguments
|
|
errors = check_arguments(start, end, min_size)
|
|
if errors:
|
|
module.fail_json(msg='\n'.join(errors))
|
|
else:
|
|
# Check IP range
|
|
range_errors = check_IP_range(start, end, min_size)
|
|
|
|
if range_errors:
|
|
module.fail_json(msg='\n'.join(range_errors))
|
|
else:
|
|
module.exit_json(msg='success')
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|