362 lines
11 KiB
Python
362 lines
11 KiB
Python
#!/usr/bin/python
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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ANSIBLE_METADATA = {'status': ['preview'],
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'supported_by': 'community',
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'version': '1.0'}
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DOCUMENTATION = '''
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---
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module: nxos_ntp_auth
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extends_documentation_fragment: nxos
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version_added: "2.2"
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short_description: Manages NTP authentication.
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description:
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- Manages NTP authentication.
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author:
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- Jason Edelman (@jedelman8)
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notes:
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- If C(state=absent), the module will attempt to remove the given key configuration.
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If a matching key configuration isn't found on the device, the module will fail.
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- If C(state=absent) and C(authentication=on), authentication will be turned off.
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- If C(state=absent) and C(authentication=off), authentication will be turned on.
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options:
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key_id:
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description:
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- Authentication key identifier (numeric).
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required: true
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md5string:
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description:
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- MD5 String.
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required: true
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default: null
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auth_type:
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description:
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- Whether the given md5string is in cleartext or
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has been encrypted. If in cleartext, the device
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will encrypt it before storing it.
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required: false
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default: text
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choices: ['text', 'encrypt']
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trusted_key:
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description:
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- Whether the given key is required to be supplied by a time source
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for the device to synchronize to the time source.
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required: false
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default: false
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choices: ['true', 'false']
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authentication:
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description:
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- Turns NTP authentication on or off.
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required: false
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default: null
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choices: ['on', 'off']
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state:
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description:
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- Manage the state of the resource.
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required: false
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default: present
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choices: ['present','absent']
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'''
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EXAMPLES = '''
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# Basic NTP authentication configuration
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- nxos_ntp_auth:
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key_id: 32
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md5string: hello
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auth_type: text
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host: "{{ inventory_hostname }}"
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username: "{{ un }}"
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password: "{{ pwd }}"
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'''
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RETURN = '''
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proposed:
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description: k/v pairs of parameters passed into module
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returned: always
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type: dict
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sample: {"auth_type": "text", "authentication": "off",
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"key_id": "32", "md5string": "helloWorld",
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"trusted_key": "true"}
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existing:
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description:
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- k/v pairs of existing ntp authentication
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type: dict
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sample: {"authentication": "off", "trusted_key": "false"}
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end_state:
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description: k/v pairs of ntp authentication after module execution
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returned: always
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type: dict
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sample: {"authentication": "off", "key_id": "32",
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"md5string": "kapqgWjwdg", "trusted_key": "true"}
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state:
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description: state as sent in from the playbook
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returned: always
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type: string
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sample: "present"
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updates:
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description: command sent to the device
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returned: always
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type: list
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sample: ["ntp authentication-key 32 md5 helloWorld 0", "ntp trusted-key 32"]
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changed:
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description: check to see if a change was made on the device
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returned: always
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type: boolean
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sample: true
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'''
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from ansible.module_utils.nxos import get_config, load_config, run_commands
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from ansible.module_utils.nxos import nxos_argument_spec, check_args
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.netcfg import CustomNetworkConfig
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import re
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def execute_show_command(command, module, command_type='cli_show'):
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if module.params['transport'] == 'cli':
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if 'show run' not in command:
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command += ' | json'
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cmds = [command]
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body = run_commands(module, cmds)
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elif module.params['transport'] == 'nxapi':
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cmds = [command]
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body = run_commands(module, cmds)
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return body
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def flatten_list(command_lists):
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flat_command_list = []
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for command in command_lists:
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if isinstance(command, list):
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flat_command_list.extend(command)
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else:
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flat_command_list.append(command)
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return flat_command_list
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def get_ntp_auth(module):
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command = 'show ntp authentication-status'
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body = execute_show_command(command, module)[0]
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ntp_auth_str = body['authentication']
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if 'enabled' in ntp_auth_str:
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ntp_auth = True
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else:
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ntp_auth = False
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return ntp_auth
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def get_ntp_trusted_key(module):
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trusted_key_list = []
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command = 'show run | inc ntp.trusted-key'
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trusted_key_str = execute_show_command(
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command, module, command_type='cli_show_ascii')[0]
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if trusted_key_str:
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trusted_keys = trusted_key_str.splitlines()
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else:
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trusted_keys = []
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for line in trusted_keys:
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if line:
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trusted_key_list.append(str(line.split()[2]))
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return trusted_key_list
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def get_ntp_auth_key(key_id, module):
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authentication_key = {}
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command = 'show run | inc ntp.authentication-key.{0}'.format(key_id)
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auth_regex = (".*ntp\sauthentication-key\s(?P<key_id>\d+)\s"
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"md5\s(?P<md5string>\S+).*")
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body = execute_show_command(command, module, command_type='cli_show_ascii')
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try:
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match_authentication = re.match(auth_regex, body[0], re.DOTALL)
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group_authentication = match_authentication.groupdict()
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key_id = group_authentication["key_id"]
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md5string = group_authentication['md5string']
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authentication_key['key_id'] = key_id
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authentication_key['md5string'] = md5string
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except (AttributeError, TypeError):
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authentication_key = {}
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return authentication_key
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def get_ntp_auth_info(key_id, module):
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auth_info = get_ntp_auth_key(key_id, module)
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trusted_key_list = get_ntp_trusted_key(module)
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auth_power = get_ntp_auth(module)
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if key_id in trusted_key_list:
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auth_info['trusted_key'] = 'true'
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else:
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auth_info['trusted_key'] = 'false'
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if auth_power:
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auth_info['authentication'] = 'on'
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else:
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auth_info['authentication'] = 'off'
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return auth_info
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def auth_type_to_num(auth_type):
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if auth_type == 'encrypt' :
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return '7'
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else:
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return '0'
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def set_ntp_auth_key(key_id, md5string, auth_type, trusted_key, authentication):
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ntp_auth_cmds = []
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auth_type_num = auth_type_to_num(auth_type)
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ntp_auth_cmds.append(
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'ntp authentication-key {0} md5 {1} {2}'.format(
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key_id, md5string, auth_type_num))
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if trusted_key == 'true':
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ntp_auth_cmds.append(
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'ntp trusted-key {0}'.format(key_id))
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elif trusted_key == 'false':
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ntp_auth_cmds.append(
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'no ntp trusted-key {0}'.format(key_id))
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if authentication == 'on':
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ntp_auth_cmds.append(
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'ntp authenticate')
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elif authentication == 'off':
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ntp_auth_cmds.append(
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'no ntp authenticate')
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return ntp_auth_cmds
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def remove_ntp_auth_key(key_id, md5string, auth_type, trusted_key, authentication):
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auth_remove_cmds = []
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auth_type_num = auth_type_to_num(auth_type)
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auth_remove_cmds.append(
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'no ntp authentication-key {0} md5 {1} {2}'.format(
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key_id, md5string, auth_type_num))
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if authentication == 'on':
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auth_remove_cmds.append(
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'no ntp authenticate')
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elif authentication == 'off':
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auth_remove_cmds.append(
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'ntp authenticate')
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return auth_remove_cmds
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def main():
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argument_spec = dict(
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key_id=dict(required=True, type='str'),
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md5string=dict(required=True, type='str'),
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auth_type=dict(choices=['text', 'encrypt'], default='text'),
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trusted_key=dict(choices=['true', 'false'], default='false'),
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authentication=dict(choices=['on', 'off']),
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state=dict(choices=['absent', 'present'], default='present'),
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)
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argument_spec.update(nxos_argument_spec)
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module = AnsibleModule(argument_spec=argument_spec,
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supports_check_mode=True)
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warnings = list()
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check_args(module, warnings)
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key_id = module.params['key_id']
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md5string = module.params['md5string']
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auth_type = module.params['auth_type']
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trusted_key = module.params['trusted_key']
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authentication = module.params['authentication']
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state = module.params['state']
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args = dict(key_id=key_id, md5string=md5string,
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auth_type=auth_type, trusted_key=trusted_key,
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authentication=authentication)
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changed = False
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proposed = dict((k, v) for k, v in args.items() if v is not None)
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existing = get_ntp_auth_info(key_id, module)
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end_state = existing
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delta = dict(set(proposed.items()).difference(existing.items()))
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commands = []
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if state == 'present':
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if delta:
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command = set_ntp_auth_key(
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key_id, md5string, auth_type, trusted_key, delta.get('authentication'))
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if command:
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commands.append(command)
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elif state == 'absent':
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if existing:
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auth_toggle = None
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if authentication == existing.get('authentication'):
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auth_toggle = authentication
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command = remove_ntp_auth_key(
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key_id, md5string, auth_type, trusted_key, auth_toggle)
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if command:
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commands.append(command)
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cmds = flatten_list(commands)
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if cmds:
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if module.check_mode:
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module.exit_json(changed=True, commands=cmds)
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else:
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try:
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load_config(module, cmds)
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except ShellError:
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clie = get_exception()
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module.fail_json(msg=str(clie) + ": " + cmds)
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end_state = get_ntp_auth_info(key_id, module)
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delta = dict(set(end_state.items()).difference(existing.items()))
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if delta or (len(existing) != len(end_state)):
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changed = True
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if 'configure' in cmds:
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cmds.pop(0)
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results = {}
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results['proposed'] = proposed
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results['existing'] = existing
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results['updates'] = cmds
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results['changed'] = changed
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results['warnings'] = warnings
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results['end_state'] = end_state
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module.exit_json(**results)
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if __name__ == '__main__':
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main()
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