adrien/vaultwarden-backup
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adrien 2022-06-12 22:01:12 +02:00
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43
README.md
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@ -1,32 +1,45 @@
# vaultwarden-backup # vaultwarden-backup
This script saves the Vaultwarden SQLite database, and sends a message to a Telegram bot. This script saves the Vaultwarden SQLite database, and sends a message to a Telegram bot.
## Introduction ## Introduction
The SQLite database file (`db.sqlite3`) stores almost all important Vaultwarden data/state (database entries, users, organizations, device metadata...), with the main exception being attachments, which are stored as separate files on the filesystem.
You should generally use the `.backup` command in the SQLite CLI to back up the database file. This command uses the [Online Backup API][online_backup_api], which SQLite documents as the [best way][best_way] to back up a database file that may be in active use. If you can ensure the database will not be in use when a backup runs, you can also use other methods such as the `.dump` command, or simply copying all the SQLite database files (including the `-wal` file, if present). The SQLite database file (`db.sqlite3`) stores almost all important Vaultwarden data/state (database entries, users,
organizations, device metadata...), with the main exception being attachments, which are stored as separate files on the
filesystem.
You should generally use the `.backup` command in the SQLite CLI to back up the database file. This command uses
the [Online Backup API][online_backup_api], which SQLite documents as the [best way][best_way] to back up a database
file that may be in active use. If you can ensure the database will not be in use when a backup runs, you can also use
other methods such as the `.dump` command, or simply copying all the SQLite database files (including the `-wal` file,
if present).
You can learn more here: https://github.com/dani-garcia/vaultwarden/wiki/Backing-up-your-vault You can learn more here: https://github.com/dani-garcia/vaultwarden/wiki/Backing-up-your-vault
## Requirements ## Requirements
### Software ### 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 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 ### System
This script can run on any GNU/Linux machine. This script can run on any GNU/Linux machine.
This script uses `sqlite3` command, so make sure it is installed on your system. This script uses `sqlite3` command, so make sure it is installed on your system.
## Installation ## Installation
Since this script must be executed with root rights, it is a good practice to place it in `/usr/local/sbin/`. Since this script must be executed with root rights, it is a good practice to place it in `/usr/local/sbin/`.
``` ```
curl -LOsSf https://gitea.illuad.fr/adrien/vaultwarden-backup/raw/branch/master/vaultwarden-backup curl -LOsSf https://gitea.illuad.fr/adrien/vaultwarden-backup/raw/branch/master/vaultwarden-backup.sh
sudo mv vaultwarden-backup /usr/local/sbin sudo mv vaultwarden-backup.sh /usr/local/sbin
sudo chmod 750 /usr/local/sbin/vaultwarden-backup sudo chmod 750 /usr/local/sbin/vaultwarden-backup.sh
``` ```
Create the logs' directory. Create the logs' directory.
@ -36,34 +49,38 @@ sudo mkdir -p /var/log/backup/vaultwarden-backup
``` ```
## Configuration ## Configuration
This script requires the configuration of 2 variables to work: `key` and `chat_id`. This script requires the configuration of 2 variables to work: `key` and `chat_id`.
Variables `key` and `chat_id` correspond to the API key and the chat id obtained during the bot creation process. Variables `key` and `chat_id` correspond to the API key and the chat id obtained during the bot creation process.
#### Fast variables setting #### Fast variables setting
For the `key` variable. For the `key` variable.
``` ```
sudo sed -i "s/key=/key=<your_key>/" /usr/local/sbin/vaultwarden-backup sudo sed -i "s/key=/key=<your_key>/" /usr/local/sbin/vaultwarden-backup.sh
``` ```
For the `chat_id` variable. For the `chat_id` variable.
``` ```
sudo sed -i "s/chat_id=/chat_id=<your_chat_id>/" /usr/local/sbin/vaultwarden-backup sudo sed -i "s/chat_id=/chat_id=<your_chat_id>/" /usr/local/sbin/vaultwarden-backup.sh
``` ```
## Automation ## Automation
Running this script automatically is a good idea, here is what you should have in the cron jobs of the root user. 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 sudo crontab -l
*/15 * * * * /usr/local/sbin/vaultwarden-backup */15 * * * * /usr/local/sbin/vaultwarden-backup.sh
``` ```
Every 15 minutes, the script will saves the Vaultwarden SQLite database into `/var/local/vaultwarden/backups/`. Every 15 minutes, the script will save the Vaultwarden SQLite database into `/var/local/vaultwarden/backups/`.
If you keep all the backups, the storage space will quickly become full, so it is necessary to delete them as time goes on. If you keep all the backups, the storage space will quickly become full, so it is necessary to delete them as time goes
on.
``` ```
sudo crontab -l sudo crontab -l
@ -73,6 +90,7 @@ sudo crontab -l
Every 16 minutes, the script will delete the backups that are 60 minutes old. Every 16 minutes, the script will delete the backups that are 60 minutes old.
## Restore a backup ## Restore a backup
Make sure Vaultwarden service is stopped. Make sure Vaultwarden service is stopped.
``` ```
@ -92,4 +110,5 @@ sudo systemctl start vaultwarden.service
``` ```
[online_backup_api]: https://www.sqlite.org/backup.html [online_backup_api]: https://www.sqlite.org/backup.html
[best_way]: https://www.sqlite.org/howtocorrupt.html#_backup_or_restore_while_a_transaction_is_active [best_way]: https://www.sqlite.org/howtocorrupt.html#_backup_or_restore_while_a_transaction_is_active

15
vaultwarden-backup → vaultwarden-backup.sh
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@ -22,11 +22,13 @@ key=
chat_id= chat_id=
function send_message() { function send_message() {
if [ $# -eq 0 ]; then if ! [ $# -eq 0 ]; then
echo "No argument supplied, please specify the message to send"
else
curl --silent --show-error --fail --request POST "https://api.telegram.org/$key/sendMessage" --data chat_id="$chat_id" --data text="$1" --output /dev/null curl --silent --show-error --fail --request POST "https://api.telegram.org/$key/sendMessage" --data chat_id="$chat_id" --data text="$1" --output /dev/null
exit
fi fi
echo "No argument supplied, please specify the message to send"
exit 1
} }
function backup_vaultwarden { function backup_vaultwarden {
@ -40,11 +42,12 @@ function backup_vaultwarden {
mkdir --parents "$destination_directory" mkdir --parents "$destination_directory"
# Save the SQLite 3 database # Save the SQLite 3 database
if /usr/bin/sqlite3 /var/lib/vaultwarden/data/db.sqlite3 ".backup $destination_directory/backup.sqlite3"; then if ! sqlite3 /var/lib/vaultwarden/data/db.sqlite3 ".backup $destination_directory/backup.sqlite3"; then
send_message "[Backup] - Vaultwarden has just been backed up"
else
send_message "[Backup] - Error during Vaultwarden backup, please log in as soon as possible and see what went wrong" send_message "[Backup] - Error during Vaultwarden backup, please log in as soon as possible and see what went wrong"
exit 1
fi fi
send_message "[Backup] - Vaultwarden has just been backed up"
} }
backup_vaultwarden backup_vaultwarden