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feat: adjust btrbk's backups preserve policy, and disable backups...

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Ryan Yin
2024-07-21 04:49:37 +08:00
parent a04d6dfdf6
commit 95cdd40c77
1 changed files with 13 additions and 3 deletions
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16
modules/nixos/base/btrbk.nix
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@@ -20,10 +20,17 @@
# How often this btrbk instance is started. See systemd.time(7) for more information about the format. # How often this btrbk instance is started. See systemd.time(7) for more information about the format.
onCalendar = "Tue,Fri,Sat,Sun *-*-* 3:45:20"; # daily at 3:45, except on Monday, Wednesday, and Thursday onCalendar = "Tue,Fri,Sat,Sun *-*-* 3:45:20"; # daily at 3:45, except on Monday, Wednesday, and Thursday
settings = { settings = {
# keep daily snapshots for 14 days # how to prune local snapshots:
# 1. keep daily snapshots for xx days
snapshot_preserve = "9d"; snapshot_preserve = "9d";
# keep all snapshots for 2 days, no matter how frequently you (or your cron job) run btrbk # 2. keep all snapshots for 2 days, no matter how frequently you (or your cron job) run btrbk
snapshot_preserve_min = "2d"; snapshot_preserve_min = "2d";
# hot to prune remote incremental baqckups:
# keep daily backups for 9 days, weekly backups for 4 weeks, and monthly backups for 2 months
target_preserve = "9d 4w 2m";
target_preserve_min = "no";
volume = { volume = {
"/btr_pool" = { "/btr_pool" = {
subvolume = { subvolume = {
@@ -31,7 +38,10 @@
snapshot_create = "always"; snapshot_create = "always";
}; };
}; };
target = "/snapshots";
# backup to a remote server or a local directory
# its prune policy is defined by `target_preserve` and `target_preserve_min`
# target = "/snapshots";
}; };
}; };
}; };