hosts/patate/backup.nix

   1 { hostName, ... }:
   2 with builtins;
   3 {
   4   imports = [
   5     backup/zfs-backup.nix
   6     backup/rsync-backup.nix
   7   ];
   8   # Take regular snapshots, and prune old ones
   9   services.sanoid = {
  10     enable = true;
  11     extraArgs = [ "--verbose" ];
  12     datasets = {
  13       "${hostName}/home" = {
  14         autosnap = true;
  15         autoprune = true;
  16         hourly = 24;
  17         daily = 3;
  18         monthly = 0;
  19         yearly = 0;
  20         recursive = true;
  21       };
  22       "${hostName}/home/Documents" = {
  23         autosnap = true;
  24         autoprune = true;
  25         hourly = 24;
  26         daily = 31;
  27         monthly = 0;
  28         yearly = 0;
  29         recursive = true;
  30       };
  31       "${hostName}/home/Downloads" = {
  32         autosnap = false;
  33         autoprune = false;
  34       };
  35       "${hostName}/home/Videos" = {
  36         autosnap = false;
  37         autoprune = false;
  38       };
  39     };
  40   };
  41   # Trigger backups when disks are plugged
  42   services.udev.extraRules = ''
  43     ACTION=="add",    SUBSYSTEM=="block", KERNEL=="sd*", ENV{ID_SERIAL}=="WDC_WD10JPVT-22A1YT0_WD-WX21AC2F3987", ENV{SYSTEMD_WANTS}+="zfs-local-backup-home@WD10JPVT.service", ENV{SYSTEMD_ALIAS}="/sys/subsystem/usb/WD10JPVT"
  44     # See https://github.com/systemd/systemd/issues/7587#issuecomment-381428545
  45     ACTION=="remove", SUBSYSTEM=="block", KERNEL=="sd*", ENV{ID_SERIAL}=="WDC_WD10JPVT-22A1YT0_WD-WX21AC2F3987", TAG+="systemd"
  46
  47     ACTION=="add",    SUBSYSTEM=="block", KERNEL=="sd*", ENV{ID_FS_LABEL}=="GE_SP", ENV{SYSTEMD_USER_WANTS}+="rsync-backup@GE_SP.service", ENV{SYSTEMD_ALIAS}="/sys/subsystem/usb/GE_SP"
  48     ACTION=="remove", SUBSYSTEM=="block", KERNEL=="sd*", ENV{ID_FS_LABEL}=="GE_SP", TAG+="systemd"
  49   '';
  50   programs.bash.shellAliases = {
  51     mount-backup-WD10JPVT = "mount-zfs-backup WD10JPVT";
  52   };
  53 }