1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
#!/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 1.1.8 (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']
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()
|
