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community.general/plugins/become/sudosu.py
Dag Wieers db26514bf1
Add support for sudo su - using password auth (#2054)
* Add support for `sudo su -` using password auth

Allow users to run Ansible tasks through `sudo su -` using password auth

- Feature Pull Request

sudosu

So I have been using this at various customers for bootstrapping Ansible mostly.

Often you have an existing setup where there is a user that has root-access enabled through sudo, but only to run `su` to log using the user's password.
In these specific cases the root password is unique to the system and therefore not an easy way to automate bootstrapping.

Having a `sudo su -` become option **with password prompt** is not possible with the existing become methods (neither sudo nor su can be used) by abusing `become_exe` or `become_flags`.

This fixes ansible/ansible#12686

* Fix all reported issues

* Add unit tests

* Apply suggestions from code review

* Update plugins/become/sudosu.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update tests/unit/plugins/become/test_sudosu.py

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update tests/unit/plugins/become/test_sudosu.py

Co-authored-by: Felix Fontein <felix@fontein.de>

Co-authored-by: Felix Fontein <felix@fontein.de>
2021-03-24 17:20:26 +01:00

91 lines
3 KiB
Python

# -*- coding: utf-8 -*-
# Copyright: (c) 2021, Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
DOCUMENTATION = """
become: sudosu
short_description: Run tasks using sudo su -
description:
- This become plugins allows your remote/login user to execute commands as another user via the C(sudo) and C(su) utilities combined.
author:
- Dag Wieers (@dagwieers)
version_added: 2.4.0
options:
become_user:
description: User you 'become' to execute the task.
default: root
ini:
- section: privilege_escalation
key: become_user
- section: sudo_become_plugin
key: user
vars:
- name: ansible_become_user
- name: ansible_sudo_user
env:
- name: ANSIBLE_BECOME_USER
- name: ANSIBLE_SUDO_USER
become_flags:
description: Options to pass to C(sudo).
default: -H -S -n
ini:
- section: privilege_escalation
key: become_flags
- section: sudo_become_plugin
key: flags
vars:
- name: ansible_become_flags
- name: ansible_sudo_flags
env:
- name: ANSIBLE_BECOME_FLAGS
- name: ANSIBLE_SUDO_FLAGS
become_pass:
description: Password to pass to C(sudo).
required: false
vars:
- name: ansible_become_password
- name: ansible_become_pass
- name: ansible_sudo_pass
env:
- name: ANSIBLE_BECOME_PASS
- name: ANSIBLE_SUDO_PASS
ini:
- section: sudo_become_plugin
key: password
"""
from ansible.plugins.become import BecomeBase
class BecomeModule(BecomeBase):
name = 'community.general.sudosu'
# messages for detecting prompted password issues
fail = ('Sorry, try again.',)
missing = ('Sorry, a password is required to run sudo', 'sudo: a password is required')
def build_become_command(self, cmd, shell):
super(BecomeModule, self).build_become_command(cmd, shell)
if not cmd:
return cmd
becomecmd = 'sudo'
flags = self.get_option('become_flags') or ''
prompt = ''
if self.get_option('become_pass'):
self.prompt = '[sudo via ansible, key=%s] password:' % self._id
if flags: # this could be simplified, but kept as is for now for backwards string matching
flags = flags.replace('-n', '')
prompt = '-p "%s"' % (self.prompt)
user = self.get_option('become_user') or ''
if user:
user = '%s' % (user)
return ' '.join([becomecmd, flags, prompt, 'su -l', user, self._build_success_command(cmd, shell)])