kevinveenbirkenbach/computer-playbook
1
0
Fork 0
mirror of https://github.com/kevinveenbirkenbach/computer-playbook.git synced 2025-03-31 14:24:16 +02:00
Code Issues Packages Projects Releases Wiki Activity

Optimized .mds and meta/main.yml for backups-provider-user

Browse Source
This commit is contained in:
Kevin Veen-Birkenbach 2025-03-14 11:54:51 +01:00
parent 856ffb9fea
commit 0ee2c041a6
No known key found for this signature in database
GPG Key ID: 44D8F11FD62F878E
2 changed files with 52 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
roles/backups-provider-user/README.md
View File

@ -1,14 +1,29 @@
# role backups-provider-user
User for backups
# Backups Provider User
## todo
- optimize authorized_keys.j2 for multiple pull clients
## Description
# see
- https://docs.ansible.com/ansible/latest/user_guide/playbooks_lookups.html#id3
- https://stackoverflow.com/questions/34722761/ansible-read-remote-file
- http://gergap.de/restrict-ssh-to-rsync.html
- https://unix.stackexchange.com/questions/276198/allow-the-restricted-rsync-rrsync-script-for-arbitrary-directories-with-author
- https://askubuntu.com/questions/719439/using-rsync-with-sudo-on-the-destination-machine
- https://www.thomas-krenn.com/de/wiki/Ausf%C3%BChrbare_SSH-Kommandos_per_authorized_keys_einschr%C3%A4nken
- https://serverfault.com/questions/793669/what-is-the-rsync-option-logdtprze-ilsf-for/793676
This role sets up a dedicated backup user (`backup`) for performing secure backup operations. It creates the user, configures a restricted SSH environment with a custom `authorized_keys` template and an SSH wrapper script, and grants necessary sudo rights for executing rsync. This configuration helps ensure controlled and secure access specifically for backup processes.
## Overview
The role is a critical component in a secure backup scheme. By isolating backup operations to a dedicated user, it minimizes the risk of unauthorized actions. The role configures the SSH environment so that only specific, allowed commands can be executed, and it sets up passwordless sudo rights for rsync, ensuring smooth and secure backup operations.
## Purpose
The purpose of this role is to enhance the security of your backup system by providing a dedicated user with strict command restrictions. This controlled environment limits the potential damage from a compromised backup account while still allowing efficient backup operations.
## Features
- **User Creation:** Creates a dedicated `backup` user with a home directory.
- **SSH Environment Setup:** Establishes a secure `.ssh` directory and deploys a restricted `authorized_keys` file via a Jinja2 template.
- **SSH Wrapper Script:** Implements a custom SSH wrapper that logs and filters incoming SSH commands, enforcing security policies.
- **Sudo Configuration:** Grants passwordless sudo rights for rsync, enabling secure and automated backup transfers.
- **Integration:** Supports seamless integration with your backup infrastructure by limiting the backup user's permissions to only the required commands.
## Further Information
For more details on how the role works and advanced configuration options, please see the related references below:
- [Ansible Playbooks Lookups](https://docs.ansible.com/ansible/latest/user_guide/playbooks_lookups.html#id3)
- [Restrict SSH to rsync](http://gergap.de/restrict-ssh-to-rsync.html)
- [SSH Command Restrictions via authorized_keys](https://www.thomas-krenn.com/de/wiki/Ausf%C3%BChrbare_SSH-Kommandos_per_authorized_keys_einschr%C3%A4nken)
- [Rsync and sudo integration](https://askubuntu.com/questions/719439/using-rsync-with-sudo-on-the-destination-machine)

26
roles/backups-provider-user/meta/main.yml
View File

@ -1,2 +1,26 @@
---
galaxy_info:
author: "Kevin Veen-Birkenbach"
description: "Sets up a dedicated backup user with restricted SSH commands for backup operations. This role configures a backup user with custom SSH key restrictions and sudo rights, ensuring secure and controlled access for backup processes."
license: "CyMaIS NonCommercial License (CNCL)"
license_url: "https://s.veen.world/cncl"
company: |
Kevin Veen-Birkenbach
Consulting & Coaching Solutions
https://www.veen.world
min_ansible_version: "2.9"
platforms:
- name: Linux
versions:
- all
galaxy_tags:
- backup
- ssh
- user
- security
- automation
repository: "https://s.veen.world/cymais"
issue_tracker_url: "https://s.veen.world/cymaisissues"
documentation: "https://s.veen.world/cymais"
dependencies:
- sshd
- sshd