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#!/usr/bin/python
# -*- coding: utf-8 -*-
from __future__ import absolute_import, division, print_function
__metaclass__ = type
# (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/>.
#
DOCUMENTATION = """
module: vyos_banner
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.
version_added: 1.0.0
notes:
- Tested against VyOS 1.1.8 (helium).
- This module works with connection C(network_cli). See L(the VyOS OS Platform Options,../network/user_guide/platform_vyos.html).
options:
banner:
description:
- Specifies which banner that should be configured on the remote device.
required: true
choices:
- pre-login
- post-login
type: str
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).
type: str
state:
description:
- Specifies whether or not the configuration is present in the current devices
active running configuration.
default: present
type: str
choices:
- present
- absent
extends_documentation_fragment:
- vyos.vyos.vyos
"""
EXAMPLES = """
- name: configure the pre-login banner
vyos.vyos.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.vyos.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()
|
