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authorBradley A. Thornton <bthornto@thethorntons.net>2019-08-08 10:51:33 -0700
committerBradley A. Thornton <bthornto@thethorntons.net>2019-08-08 10:51:33 -0700
commitba99fb9d041f63f5d300956daabefeb0a86edb06 (patch)
treecedee2681cb3b629e4bf3cc56dbd3ec46aeee123 /plugins/modules/vyos_banner.py
parent401cd33cbfa3cb623b5f6deb0f24911527d905c2 (diff)
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+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# (c) 2017, Ansible by Red Hat, inc
+#
+# This file is part of Ansible by Red Hat
+#
+# 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 = {'metadata_version': '1.1',
+ 'status': ['preview'],
+ 'supported_by': 'network'}
+
+DOCUMENTATION = """
+---
+module: vyos_banner
+version_added: "2.4"
+author: "Trishna Guha (@trishnaguha)"
+short_description: Manage multiline banners on VyOS devices
+description:
+ - This will configure both pre-login and post-login banners on remote
+ devices running VyOS. It allows playbooks to add or remote
+ banner text from the active running configuration.
+notes:
+ - Tested against VYOS 1.1.7
+options:
+ banner:
+ description:
+ - Specifies which banner that should be
+ configured on the remote device.
+ required: true
+ choices: ['pre-login', 'post-login']
+ text:
+ description:
+ - The banner text that should be
+ present in the remote device running configuration. This argument
+ accepts a multiline string, with no empty lines. Requires I(state=present).
+ state:
+ description:
+ - Specifies whether or not the configuration is present in the current
+ devices active running configuration.
+ default: present
+ choices: ['present', 'absent']
+extends_documentation_fragment: vyos
+"""
+
+EXAMPLES = """
+- name: configure the pre-login banner
+ vyos_banner:
+ banner: pre-login
+ text: |
+ this is my pre-login banner
+ that contains a multiline
+ string
+ state: present
+- name: remove the post-login banner
+ vyos_banner:
+ banner: post-login
+ state: absent
+"""
+
+RETURN = """
+commands:
+ description: The list of configuration mode commands to send to the device
+ returned: always
+ type: list
+ sample:
+ - banner pre-login
+ - this is my pre-login banner
+ - that contains a multiline
+ - string
+"""
+
+import re
+
+from ansible.module_utils.basic import AnsibleModule
+from ansible_collections.vyos.vyos.plugins.module_utils.network.vyos.vyos import get_config, load_config
+from ansible_collections.vyos.vyos.plugins.module_utils.network.vyos.vyos import vyos_argument_spec
+
+
+def spec_to_commands(updates, module):
+ commands = list()
+ want, have = updates
+ state = module.params['state']
+
+ if state == 'absent':
+ if have.get('state') != 'absent' or (have.get('state') != 'absent' and
+ 'text' in have.keys() and have['text']):
+ commands.append('delete system login banner %s' % module.params['banner'])
+
+ elif state == 'present':
+ if want['text'] and want['text'].encode().decode('unicode_escape') != have.get('text'):
+ banner_cmd = 'set system login banner %s ' % module.params['banner']
+ banner_cmd += want['text'].strip()
+ commands.append(banner_cmd)
+
+ return commands
+
+
+def config_to_dict(module):
+ data = get_config(module)
+ output = None
+ obj = {'banner': module.params['banner'], 'state': 'absent'}
+
+ for line in data.split('\n'):
+ if line.startswith('set system login banner %s' % obj['banner']):
+ match = re.findall(r'%s (.*)' % obj['banner'], line, re.M)
+ output = match
+ if output:
+ obj['text'] = output[0].encode().decode('unicode_escape')
+ obj['state'] = 'present'
+
+ return obj
+
+
+def map_params_to_obj(module):
+ text = module.params['text']
+ if text:
+ text = "%r" % (str(text).strip())
+
+ return {
+ 'banner': module.params['banner'],
+ 'text': text,
+ 'state': module.params['state']
+ }
+
+
+def main():
+ """ main entry point for module execution
+ """
+ argument_spec = dict(
+ banner=dict(required=True, choices=['pre-login', 'post-login']),
+ text=dict(),
+ state=dict(default='present', choices=['present', 'absent'])
+ )
+
+ argument_spec.update(vyos_argument_spec)
+
+ required_if = [('state', 'present', ('text',))]
+
+ module = AnsibleModule(argument_spec=argument_spec,
+ required_if=required_if,
+ supports_check_mode=True)
+
+ warnings = list()
+
+ result = {'changed': False}
+ if warnings:
+ result['warnings'] = warnings
+
+ want = map_params_to_obj(module)
+ have = config_to_dict(module)
+
+ commands = spec_to_commands((want, have), module)
+ result['commands'] = commands
+
+ if commands:
+ commit = not module.check_mode
+ load_config(module, commands, commit=commit)
+ result['changed'] = True
+
+ module.exit_json(**result)
+
+
+if __name__ == '__main__':
+ main()