2.4 KiB
vaultwarden-updater
This script checks if Vaultwarden is up to date, updates it if necessary and sends a message to a Telegram bot.
Introduction
The trap to avoid when installing custom software is to update it. It seems obvious but it is never very easy because there is often a compilation part, interoperability management between bricks, backups and so on.
Requirements
Software
It is clearly necessary to have deployed a Vaultwarden instance on your server. I wrote an article about this topic here: https://illuad.fr/2020/06/11/install-vaultwarden.html
Since a message is sent to a Telegram bot, it is necessary to have one configured. I wrote an article about this topic here: https://illuad.fr/2020/10/27/get-a-telegram-alert-on-a-ssh-login-with-pam.html
System
This script can run on any GNU/Linux machine.
This script uses git, cargo, curl and restorecon commands but if you have followed my article, some of them are required which means they will necessarily be installed.
Installation
Since this script must be executed with root rights, it is a good practice to place it in /usr/local/sbin/.
sudo curl -Lo /usr/local/sbin/vaultwarden-updater -sSf https://gitea.illuad.fr/adrien/vaultwarden-updater/raw/branch/master/vaultwarden-updater
sudo chmod 750 /usr/local/sbin/vaultwarden-updater
Create the logs' directory.
sudo mkdir -p /var/log/updater/vaultwarden-updater
Configuration
This script requires the configuration of 3 variables to work: key, chat_id and username.
Variables key and chat_id correspond to the API key and the chat id obtained during the bot creation process. The variable username must match the username with which you installed Vaultwarden.
Fast variables setting
For the key variable.
sudo sed -i "s/key=/key=<your_key>/" /usr/local/sbin/vaultwarden-updater
For the chat_id variable.
sudo sed -i "s/chat_id=/chat_id=<your_chat_id>/" /usr/local/sbin/vaultwarden-updater
For the username variable.
sudo sed -i "s/username=/username=<your_username>/" /usr/local/sbin/vaultwarden-updater
Automation
Running this script automatically is a good idea, here is what you should have in the cron jobs of the root user.
sudo crontab -l
0 1 * * * /usr/local/sbin/vaultwarden-updater
Every day at 1:00 am, the script will check if Vaultwarden is up to date.