Backup and disaster-recovery tooling for Linux servers: Borg backing up a target directory tree — including a MariaDB database running in Docker — with an offsite mirror on Scaleway S3 via rclone.

MariaDB is never stopped during backup: dump_db.sh takes a transactionally-consistent logical dump (mysqldump --single-transaction) while the container keeps running, and the container's raw data directory is excluded from the archive entirely (a .nobackup marker file), so only the logical dump ever gets backed up. Zero DB downtime.

Components

File	Purpose
`configs/`	Per-deployment config files (one per server). Each sets `TARGET`, `REPO`, `DB_CONTAINER`, etc.
`borg-backup.sh`	Daily backup orchestrator (run from cron): dump → archive → prune → compact → integrity check → offsite sync.
`dump_db.sh`	Per-database `mysqldump`/`mariadb-dump`, atomic staging/swap. Invoked by `borg-backup.sh`.
`restore.sh`	Recovery CLI: `full` (disaster recovery), `db <name>` (single database), `file <path>` (single file/dir), `--list-archives`. Every mode supports `--dry-run`.

Multi-server use

Both scripts are deployment-agnostic. Point them at a config with BACKUP_CONF:

# backup
BACKUP_CONF=/opt/backup-agent/configs/nexusvoice.conf /opt/backup-agent/borg-backup.sh

# restore
BACKUP_CONF=/opt/backup-agent/configs/nexusvoice.conf /opt/backup-agent/restore.sh --list-archives

See configs/ for existing deployments and RUNBOOK.md §2 for deployment steps.

Quickstart

# One-time setup, deployment, cron scheduling, day-2 ops, and step-by-step
# recovery for every scenario are all in:
less RUNBOOK.md

Day to day:

./restore.sh --list-archives          # what backups exist
./restore.sh full --dry-run           # preview a disaster recovery
./restore.sh db <name> --dry-run      # preview a single-database restore
./restore.sh file <path> --dest DIR   # pull one file out of an archive

Encryption

The Borg repos on current deployments are unencrypted by deliberate operator choice — borg-backup.sh will keep printing a warning about it on every run, which is expected. See RUNBOOK.md if you want to switch to an encrypted repo.

Requirements

borg, docker, rclone, flock, a mysql/mariadb client. When DB_CONTAINER is empty in the config, docker is not required. Targets Linux; flock(1) doesn't exist on macOS, so these scripts won't run as-is on a Mac.

License

None specified — internal tooling.