bitwarden_rs Backup

Docker Containers for bitwarden_rs Backup.

Usage

The default tag latest should be used for a x86-64 system. If you try to run the container on a raspberry pi 3 you should use the tag rpi3. Also make sure that your bitwarden_rs container is named bitwarden otherwise you have to replace the container name in the --volumes-from section of the docker run call.

Automatic Backups

A cron daemon is running inside the container and the container keeps running in background.

Start backup container with default settings (automatic backup at 5 am)

docker run -d --restart=always --name bitwarden_backup --volumes-from=bitwarden bruceforce/bw_backup

Example for hourly backups

docker run -d --restart=always --name bitwarden_backup --volumes-from=bitwarden -e CRON_TIME="0 * * * *" bruceforce/bw_backup

Example for backups that delete after 30 days

docker run -d --restart=always --name bitwarden_backup --volumes-from=bitwarden -e DELETE_AFTER=30 bruceforce/bw_backup

Manual Backups

You can use the crontab of your host to schedule the backup and the container will only be running during the backup process.

docker run --rm --volumes-from=bitwarden --entrypoint sqlite3 bruceforce/bw_backup $DB_FILE ".backup $BACKUP_FILE"

Keep in mind that the above command will be executed inside the container. So

• $DB_FILE is the path to the bitwarden database which is normally locatated at /data/db.sqlite3
• $BACKUP_FILE can be any place inside the container. Easiest would be to set it to /data/backup.sqlite3 which will create the backup near the original database file. If you want the backed up file to be stored outside the container you have to mount a directory by adding -v <PATH_ON_YOUR_HOST>:<PATH_INSIDE_CONTAINER>. The complete command could look like this

docker run --rm --volumes-from=bitwarden -v /tmp/myBackup:/myBackup --entrypoint sqlite3 bruceforce/bw_backup /data/db.sqlite3 ".backup /myBackup/backup.sqlite3"

Environment variables

ENV	Description
DB_FILE	Path to the Bitwarden sqlite3 database inside the container
BACKUP_FILE	Path to the desired backup location inside the container
CRON_TIME	Cronjob format "Minute Hour Day_of_month Month_of_year Day_of_week Year"
TIMESTAMP	Set to true to append timestamp to the BACKUP_FILE
UID	User ID to run the cron job with
GID	Group ID to run the cron job with
LOGFILE	Path to the logfile inside the container
CRONFILE	Path to the cron file inside the container
DELETE_AFTER	Delete old backups after X many days

Common erros

Wrong permissions

Error: unable to open database file is most likely caused by permission errors. Note that sqlite3 creates a lock file in the source directory while running the backup. So source AND destination have to be +rw for the user. You can set the user and group ID via the UID and GID environment variables like described above.

Wrong timestamp

If you need timestamps in your local timezone you should mount /etc/timezone:/etc/timezone:ro and /etc/localtime:/etc/localtime:ro like it's done in the docker-compose.yml.

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