mirror of https://github.com/digint/btrbk
documentation: btrbk.conf.example: commented out defaults; cleanup of example configuration
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@ -21,41 +21,45 @@
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#
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snapshot_dir _btrbk_snap
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# Always create snapshots. Set this to "ondemand" to only create
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# snapshots if the target volume is reachable. Set this to "no" if
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# snapshot creation is done by another instance of btrbk.
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#snapshot_create always
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# Perform incremental backups (set to "strict" if you want to prevent
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# creation of non-incremental backups if no parent is found).
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incremental yes
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#incremental yes
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# Always create snapshots (set to "ondemand" to only create snapshots
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# if the target volume is reachable).
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snapshot_create always
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# Resume missing backups (set to "no" if you don't want to resume
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# missing backups).
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#resume_missing yes
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# Resume missing backups if the target volume is reachable again (set
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# to "no" if you don't want to resume missing backups).
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resume_missing yes
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# Specify on which day of week weekly/monthly backups are to be
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# preserved.
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#preserve_day_of_week sunday
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# ssh key for ssh volumes/targets
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ssh_identity /etc/btrbk/ssh/id_ed25519
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ssh_user root
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# Preserve matrix for source snapshots:
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#snapshot_preserve_daily all
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#snapshot_preserve_weekly 0
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#snapshot_preserve_monthly all
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# Preserve weekly/monthly backups from given day of week
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preserve_day_of_week sunday
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# Preserve matrix for backup targets:
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#target_preserve_daily all
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#target_preserve_weekly 0
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#target_preserve_monthly all
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# Preserve matrix for snapshots
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snapshot_preserve_daily 14
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snapshot_preserve_weekly 0
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snapshot_preserve_monthly 0
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# Specify SSH private key for "ssh://" volumes / targets:
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#ssh_identity /etc/btrbk/ssh/id_ed25519
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#ssh_user root
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# Preserve matrix for backups
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target_preserve_daily 20
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target_preserve_weekly 10
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target_preserve_monthly all
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# Don't wait for transaction commit on deletion. Set this to "after"
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# or "each" to make sure the deletion of subvolumes is committed to
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# disk when btrbk terminates.
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#btrfs_commit_delete no
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# Make sure the deletion of subvolumes is committed to disk when btrbk terminates
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btrfs_commit_delete after
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# Enable compatibility mode for btrfs-progs < 3.17.
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# Set this to "yes" to enable btrfs-progs < 3.17 compatibility.
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# Set this either globally or in a specific "target" section.
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#btrfs_progs_compat yes
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#btrfs_progs_compat no
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#
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@ -84,47 +88,58 @@ btrfs_commit_delete after
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# "volume" section.
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#
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volume /mnt/btr_system
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#
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# Example configuration:
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#
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snapshot_preserve_daily 14
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snapshot_preserve_weekly 0
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snapshot_preserve_monthly 0
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target_preserve_daily 20
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target_preserve_weekly 10
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target_preserve_monthly all
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# Backup to external disk mounted on /mnt/btr_backup
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volume /mnt/btr_pool
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# no action if external disk is not attached
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snapshot_create ondemand
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subvolume root_gentoo
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target send-receive /mnt/btr_ext/_btrbk
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target send-receive /mnt/btr_backup/_btrbk
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target send-receive /mnt/btr_backup/_btrbk
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subvolume kvm
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# use different preserve matrix for kvm backups
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target_preserve_daily 7
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target_preserve_weekly 4
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target_preserve_daily 7
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target_preserve_weekly 4
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target send-receive /mnt/btr_ext/_btrbk
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target_preserve_weekly 0
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target send-receive /mnt/btr_backup/_btrbk
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target send-receive /mnt/btr_backup/_btrbk
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# Backup to external disk as well as some remote host
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volume /mnt/btr_data
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subvolume home
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target send-receive /mnt/btr_backup/_btrbk
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target send-receive ssh://backup.my-remote-host.com/mnt/btr_backup
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volume /mnt/btr_ext
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subvolume data
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target send-receive /mnt/btr_backup/_btrbk
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# always create snapshot, even if targets are unreachable
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snapshot_create always
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target send-receive /mnt/btr_backup/_btrbk
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target send-receive ssh://backup.my-remote-host.com/mnt/btr_backup
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# Backup from remote host, with different naming
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volume ssh://my-remote-host.com/mnt/btr_pool
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subvolume data_0
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snapshot_dir snapshots/btrbk
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snapshot_name data_main
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target send-receive /mnt/btr_backup/_btrbk/my-remote-host.com
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snapshot_dir snapshots/btrbk
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snapshot_name data_main
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target send-receive /mnt/btr_backup/_btrbk/my-remote-host.com
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# Resume backups from remote host which runs its own btrbk instance
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# creating snapshots for "home" in "/mnt/btr_pool/btrbk_snapshots".
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volume ssh://my-remote-host.com/mnt/btr_pool
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subvolume home
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snapshot_dir btrbk_snapshots
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snapshot_dir btrbk_snapshots
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snapshot_preserve_daily all
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snapshot_create no
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resume_missing yes
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target send-receive /mnt/btr_backup/_btrbk/my-remote-host.com
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target send-receive /mnt/btr_backup/_btrbk/my-remote-host.com
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