mirror of
https://github.com/ansible-collections/community.general.git
synced 2026-02-04 16:01:55 +00:00
318 lines
8.5 KiB
Python
318 lines
8.5 KiB
Python
#!/usr/bin/python
|
|
|
|
|
|
# Copyright (c) 2019, Jon Ellis (@JonEllis) <ellis.jp@gmail.com>
|
|
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
|
|
# SPDX-License-Identifier: GPL-3.0-or-later
|
|
|
|
from __future__ import annotations
|
|
|
|
|
|
DOCUMENTATION = r"""
|
|
module: sudoers
|
|
short_description: Manage sudoers files
|
|
version_added: "4.3.0"
|
|
description:
|
|
- This module allows for the manipulation of sudoers files.
|
|
author:
|
|
- "Jon Ellis (@JonEllis) <ellis.jp@gmail.com>"
|
|
extends_documentation_fragment:
|
|
- community.general.attributes
|
|
attributes:
|
|
check_mode:
|
|
support: full
|
|
diff_mode:
|
|
support: none
|
|
options:
|
|
commands:
|
|
description:
|
|
- The commands allowed by the sudoers rule.
|
|
- Multiple can be added by passing a list of commands.
|
|
- Use V(ALL) for all commands.
|
|
type: list
|
|
elements: str
|
|
group:
|
|
description:
|
|
- The name of the group for the sudoers rule.
|
|
- This option cannot be used in conjunction with O(user).
|
|
type: str
|
|
name:
|
|
required: true
|
|
description:
|
|
- The name of the sudoers rule.
|
|
- This is used for the filename for the sudoers file managed by this rule.
|
|
type: str
|
|
noexec:
|
|
description:
|
|
- Whether a command is prevented to run further commands itself.
|
|
default: false
|
|
type: bool
|
|
version_added: 8.4.0
|
|
nopassword:
|
|
description:
|
|
- Whether a password is not required when command is run with sudo.
|
|
default: true
|
|
type: bool
|
|
setenv:
|
|
description:
|
|
- Whether to allow keeping the environment when command is run with sudo.
|
|
default: false
|
|
type: bool
|
|
version_added: 6.3.0
|
|
host:
|
|
description:
|
|
- Specify the host the rule is for.
|
|
default: ALL
|
|
type: str
|
|
version_added: 6.2.0
|
|
runas:
|
|
description:
|
|
- Specify the target user the command(s) runs as.
|
|
type: str
|
|
version_added: 4.7.0
|
|
sudoers_path:
|
|
description:
|
|
- The path which sudoers config files are managed in.
|
|
default: /etc/sudoers.d
|
|
type: str
|
|
state:
|
|
default: "present"
|
|
choices:
|
|
- present
|
|
- absent
|
|
description:
|
|
- Whether the rule should exist or not.
|
|
type: str
|
|
user:
|
|
description:
|
|
- The name of the user for the sudoers rule.
|
|
- This option cannot be used in conjunction with O(group).
|
|
type: str
|
|
validation:
|
|
description:
|
|
- If V(absent), the sudoers rule is added without validation.
|
|
- If V(detect) and C(visudo) is available, then the sudoers rule is validated by C(visudo).
|
|
- If V(required), C(visudo) must be available to validate the sudoers rule.
|
|
type: str
|
|
default: detect
|
|
choices: [absent, detect, required]
|
|
version_added: 5.2.0
|
|
"""
|
|
|
|
EXAMPLES = r"""
|
|
- name: Allow the backup user to sudo /usr/local/bin/backup
|
|
community.general.sudoers:
|
|
name: allow-backup
|
|
state: present
|
|
user: backup
|
|
commands: /usr/local/bin/backup
|
|
|
|
- name: Allow the bob user to run any commands as alice with sudo -u alice
|
|
community.general.sudoers:
|
|
name: bob-do-as-alice
|
|
state: present
|
|
user: bob
|
|
runas: alice
|
|
commands: ALL
|
|
|
|
- name: >-
|
|
Allow the monitoring group to run sudo /usr/local/bin/gather-app-metrics
|
|
without requiring a password on the host called webserver
|
|
community.general.sudoers:
|
|
name: monitor-app
|
|
group: monitoring
|
|
host: webserver
|
|
commands: /usr/local/bin/gather-app-metrics
|
|
|
|
- name: >-
|
|
Allow the alice user to run sudo /bin/systemctl restart my-service or
|
|
sudo /bin/systemctl reload my-service, but a password is required
|
|
community.general.sudoers:
|
|
name: alice-service
|
|
user: alice
|
|
commands:
|
|
- /bin/systemctl restart my-service
|
|
- /bin/systemctl reload my-service
|
|
nopassword: false
|
|
|
|
- name: Revoke the previous sudo grants given to the alice user
|
|
community.general.sudoers:
|
|
name: alice-service
|
|
state: absent
|
|
|
|
- name: Allow alice to sudo /usr/local/bin/upload and keep env variables
|
|
community.general.sudoers:
|
|
name: allow-alice-upload
|
|
user: alice
|
|
commands: /usr/local/bin/upload
|
|
setenv: true
|
|
|
|
- name: >-
|
|
Allow alice to sudo /usr/bin/less but prevent less from
|
|
running further commands itself
|
|
community.general.sudoers:
|
|
name: allow-alice-restricted-less
|
|
user: alice
|
|
commands: /usr/bin/less
|
|
noexec: true
|
|
"""
|
|
|
|
import os
|
|
from ansible.module_utils.basic import AnsibleModule
|
|
from ansible.module_utils.common.text.converters import to_native
|
|
|
|
|
|
class Sudoers:
|
|
FILE_MODE = 0o440
|
|
|
|
def __init__(self, module):
|
|
self.module = module
|
|
|
|
self.check_mode = module.check_mode
|
|
self.name = module.params["name"]
|
|
self.user = module.params["user"]
|
|
self.group = module.params["group"]
|
|
self.state = module.params["state"]
|
|
self.noexec = module.params["noexec"]
|
|
self.nopassword = module.params["nopassword"]
|
|
self.setenv = module.params["setenv"]
|
|
self.host = module.params["host"]
|
|
self.runas = module.params["runas"]
|
|
self.sudoers_path = module.params["sudoers_path"]
|
|
self.file = os.path.join(self.sudoers_path, self.name)
|
|
self.commands = module.params["commands"]
|
|
self.validation = module.params["validation"]
|
|
|
|
def write(self):
|
|
if self.check_mode:
|
|
return
|
|
|
|
with open(self.file, "w") as f:
|
|
f.write(self.content())
|
|
|
|
os.chmod(self.file, self.FILE_MODE)
|
|
|
|
def delete(self):
|
|
if self.check_mode:
|
|
return
|
|
|
|
os.remove(self.file)
|
|
|
|
def exists(self):
|
|
return os.path.exists(self.file)
|
|
|
|
def matches(self):
|
|
with open(self.file, "r") as f:
|
|
content_matches = f.read() == self.content()
|
|
|
|
current_mode = os.stat(self.file).st_mode & 0o777
|
|
mode_matches = current_mode == self.FILE_MODE
|
|
|
|
return content_matches and mode_matches
|
|
|
|
def content(self):
|
|
if self.user:
|
|
owner = self.user
|
|
elif self.group:
|
|
owner = f"%{self.group}"
|
|
|
|
commands_str = ", ".join(self.commands)
|
|
noexec_str = "NOEXEC:" if self.noexec else ""
|
|
nopasswd_str = "NOPASSWD:" if self.nopassword else ""
|
|
setenv_str = "SETENV:" if self.setenv else ""
|
|
runas_str = f"({self.runas})" if self.runas is not None else ""
|
|
return f"{owner} {self.host}={runas_str}{noexec_str}{nopasswd_str}{setenv_str} {commands_str}\n"
|
|
|
|
def validate(self):
|
|
if self.validation == "absent":
|
|
return
|
|
|
|
visudo_path = self.module.get_bin_path("visudo", required=self.validation == "required")
|
|
if visudo_path is None:
|
|
return
|
|
|
|
check_command = [visudo_path, "-c", "-f", "-"]
|
|
rc, stdout, stderr = self.module.run_command(check_command, data=self.content())
|
|
|
|
if rc != 0:
|
|
self.module.fail_json(
|
|
msg=f"Failed to validate sudoers rule:\n{stdout or stderr}", stdout=stdout, stderr=stderr
|
|
)
|
|
|
|
def run(self):
|
|
if self.state == "absent":
|
|
if self.exists():
|
|
self.delete()
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
self.validate()
|
|
|
|
if self.exists() and self.matches():
|
|
return False
|
|
|
|
self.write()
|
|
return True
|
|
|
|
|
|
def main():
|
|
argument_spec = {
|
|
"commands": {
|
|
"type": "list",
|
|
"elements": "str",
|
|
},
|
|
"group": {},
|
|
"name": {
|
|
"required": True,
|
|
},
|
|
"noexec": {
|
|
"type": "bool",
|
|
"default": False,
|
|
},
|
|
"nopassword": {
|
|
"type": "bool",
|
|
"default": True,
|
|
},
|
|
"setenv": {
|
|
"type": "bool",
|
|
"default": False,
|
|
},
|
|
"host": {
|
|
"type": "str",
|
|
"default": "ALL",
|
|
},
|
|
"runas": {
|
|
"type": "str",
|
|
"default": None,
|
|
},
|
|
"sudoers_path": {
|
|
"type": "str",
|
|
"default": "/etc/sudoers.d",
|
|
},
|
|
"state": {
|
|
"default": "present",
|
|
"choices": ["present", "absent"],
|
|
},
|
|
"user": {},
|
|
"validation": {"default": "detect", "choices": ["absent", "detect", "required"]},
|
|
}
|
|
|
|
module = AnsibleModule(
|
|
argument_spec=argument_spec,
|
|
mutually_exclusive=[["user", "group"]],
|
|
supports_check_mode=True,
|
|
required_if=[("state", "present", ["commands"])],
|
|
)
|
|
|
|
sudoers = Sudoers(module)
|
|
|
|
try:
|
|
changed = sudoers.run()
|
|
module.exit_json(changed=changed)
|
|
except Exception as e:
|
|
module.fail_json(msg=to_native(e))
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|