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vyos_user.py
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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_user
author: Trishna Guha (@trishnaguha)
short_description: Manage the collection of local users on VyOS device
description:
- This module provides declarative management of the local usernames configured on
network devices. It allows playbooks to manage either individual usernames or the
collection of usernames in the current running config. It also supports purging
usernames from the configuration that are not explicitly defined.
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:
aggregate:
description:
- The set of username objects to be configured on the remote VyOS device. The
list entries can either be the username or a hash of username and properties.
This argument is mutually exclusive with the C(name) argument.
aliases:
- users
- collection
type: list
elements: dict
suboptions:
name:
description:
- The username to be configured on the VyOS device. This argument accepts a string
value and is mutually exclusive with the C(aggregate) argument. Please note
that this option is not same as C(provider username).
required: True
type: str
full_name:
description:
- The C(full_name) argument provides the full name of the user account to be created
on the remote device. This argument accepts any text string value.
type: str
configured_password:
description:
- The password to be configured on the VyOS device. The password needs to be provided
in clear and it will be encrypted on the device. Please note that this option
is not same as C(provider password).
type: str
update_password:
description:
- Since passwords are encrypted in the device running config, this argument will
instruct the module when to change the password. When set to C(always), the
password will always be updated in the device and when set to C(on_create) the
password will be updated only if the username is created.
type: str
choices:
- on_create
- always
level:
description:
- The C(level) argument configures the level of the user when logged into the
system. This argument accepts string values admin or operator.
type: str
aliases:
- role
state:
description:
- Configures the state of the username definition as it relates to the device
operational configuration. When set to I(present), the username(s) should be
configured in the device active configuration and when set to I(absent) the
username(s) should not be in the device active configuration
type: str
choices:
- present
- absent
name:
description:
- The username to be configured on the VyOS device. This argument accepts a string
value and is mutually exclusive with the C(aggregate) argument. Please note
that this option is not same as C(provider username).
type: str
full_name:
description:
- The C(full_name) argument provides the full name of the user account to be created
on the remote device. This argument accepts any text string value.
type: str
configured_password:
description:
- The password to be configured on the VyOS device. The password needs to be provided
in clear and it will be encrypted on the device. Please note that this option
is not same as C(provider password).
type: str
update_password:
description:
- Since passwords are encrypted in the device running config, this argument will
instruct the module when to change the password. When set to C(always), the
password will always be updated in the device and when set to C(on_create) the
password will be updated only if the username is created.
default: always
type: str
choices:
- on_create
- always
level:
description:
- The C(level) argument configures the level of the user when logged into the
system. This argument accepts string values admin or operator.
type: str
aliases:
- role
purge:
description:
- Instructs the module to consider the resource definition absolute. It will remove
any previously configured usernames on the device with the exception of the
`admin` user (the current defined set of users).
type: bool
default: false
state:
description:
- Configures the state of the username definition as it relates to the device
operational configuration. When set to I(present), the username(s) should be
configured in the device active configuration and when set to I(absent) the
username(s) should not be in the device active configuration
type: str
default: present
choices:
- present
- absent
extends_documentation_fragment:
- vyos.vyos.vyos
"""
EXAMPLES = """
- name: create a new user
vyos.vyos.vyos_user:
name: ansible
configured_password: password
state: present
- name: remove all users except admin
vyos.vyos.vyos_user:
purge: yes
- name: set multiple users to level operator
vyos.vyos.vyos_user:
aggregate:
- name: netop
- name: netend
level: operator
state: present
- name: Change Password for User netop
vyos.vyos.vyos_user:
name: netop
configured_password: '{{ new_password }}'
update_password: always
state: present
"""
RETURN = """
commands:
description: The list of configuration mode commands to send to the device
returned: always
type: list
sample:
- set system login user test level operator
- set system login user authentication plaintext-password password
"""
import re
from copy import deepcopy
from functools import partial
from ansible.module_utils.basic import AnsibleModule
from ansible_collections.ansible.netcommon.plugins.module_utils.network.common.utils import (
remove_default_spec,
)
from ansible_collections.vyos.vyos.plugins.module_utils.network.vyos.vyos import (
get_config,
load_config,
)
from ansible.module_utils.six import iteritems
from ansible_collections.vyos.vyos.plugins.module_utils.network.vyos.vyos import (
vyos_argument_spec,
)
def validate_level(value, module):
if value not in ("admin", "operator"):
module.fail_json(
msg="level must be either admin or operator, got %s" % value
)
def spec_to_commands(updates, module):
commands = list()
update_password = module.params["update_password"]
def needs_update(want, have, x):
return want.get(x) and (want.get(x) != have.get(x))
def add(command, want, x):
command.append("set system login user %s %s" % (want["name"], x))
for update in updates:
want, have = update
if want["state"] == "absent":
commands.append("delete system login user %s" % want["name"])
continue
if needs_update(want, have, "level"):
add(commands, want, "level %s" % want["level"])
if needs_update(want, have, "full_name"):
add(commands, want, "full-name %s" % want["full_name"])
if needs_update(want, have, "configured_password"):
if update_password == "always" or not have:
add(
commands,
want,
"authentication plaintext-password %s"
% want["configured_password"],
)
return commands
def parse_level(data):
match = re.search(r"level (\S+)", data, re.M)
if match:
level = match.group(1)[1:-1]
return level
def parse_full_name(data):
match = re.search(r"full-name (\S+)", data, re.M)
if match:
full_name = match.group(1)[1:-1]
return full_name
def config_to_dict(module):
data = get_config(module)
match = re.findall(r"^set system login user (\S+)", data, re.M)
if not match:
return list()
instances = list()
for user in set(match):
regex = r" %s .+$" % user
cfg = re.findall(regex, data, re.M)
cfg = "\n".join(cfg)
obj = {
"name": user,
"state": "present",
"configured_password": None,
"level": parse_level(cfg),
"full_name": parse_full_name(cfg),
}
instances.append(obj)
return instances
def get_param_value(key, item, module):
# if key doesn't exist in the item, get it from module.params
if not item.get(key):
value = module.params[key]
# validate the param value (if validator func exists)
validator = globals().get("validate_%s" % key)
if all((value, validator)):
validator(value, module)
return value
def map_params_to_obj(module):
aggregate = module.params["aggregate"]
if not aggregate:
if not module.params["name"] and module.params["purge"]:
return list()
else:
users = [{"name": module.params["name"]}]
else:
users = list()
for item in aggregate:
if not isinstance(item, dict):
users.append({"name": item})
else:
users.append(item)
objects = list()
for item in users:
get_value = partial(get_param_value, item=item, module=module)
item["configured_password"] = get_value("configured_password")
item["full_name"] = get_value("full_name")
item["level"] = get_value("level")
item["state"] = get_value("state")
objects.append(item)
return objects
def update_objects(want, have):
updates = list()
for entry in want:
item = next((i for i in have if i["name"] == entry["name"]), None)
if item is None:
updates.append((entry, {}))
elif item:
for key, value in iteritems(entry):
if value and value != item[key]:
updates.append((entry, item))
return updates
def main():
"""main entry point for module execution"""
element_spec = dict(
name=dict(),
full_name=dict(),
level=dict(aliases=["role"]),
configured_password=dict(no_log=True),
update_password=dict(
default="always", choices=["on_create", "always"]
),
state=dict(default="present", choices=["present", "absent"]),
)
aggregate_spec = deepcopy(element_spec)
aggregate_spec["name"] = dict(required=True)
# remove default in aggregate spec, to handle common arguments
remove_default_spec(aggregate_spec)
argument_spec = dict(
aggregate=dict(
type="list",
elements="dict",
options=aggregate_spec,
aliases=["users", "collection"],
),
purge=dict(type="bool", default=False),
)
argument_spec.update(element_spec)
argument_spec.update(vyos_argument_spec)
mutually_exclusive = [("name", "aggregate")]
module = AnsibleModule(
argument_spec=argument_spec,
mutually_exclusive=mutually_exclusive,
supports_check_mode=True,
)
warnings = list()
result = {"changed": False, "warnings": warnings}
want = map_params_to_obj(module)
have = config_to_dict(module)
commands = spec_to_commands(update_objects(want, have), module)
if module.params["purge"]:
want_users = [x["name"] for x in want]
have_users = [x["name"] for x in have]
for item in set(have_users).difference(want_users):
commands.append("delete system login user %s" % item)
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()

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