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https://codeberg.org/privacy1st/nix-git
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83 lines
2.7 KiB
Nix
83 lines
2.7 KiB
Nix
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{ config, pkgs, ... }:
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{
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# For each instance, a service and timer will be created:
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# systemctl list-unit-files | grep btrbk
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# #=> btrbk-<instance-name>.service
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# #=> btrbk-<instance-name>.timer
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#
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# If onCalendar is set to null, one can manually execute btrbk with
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# sudo systemctl start btrbk-<instance-name>.service
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# Print generated systemd unit file
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# cat "$(systemctl show -P FragmentPath btrbk-<instance-name>.service)"
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# TODO: Maybe the following is not necessary if using hd-idle anyways (!)
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# TODO: Mount/Unmount backup drive
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# Example1:
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# - https://github.com/oxalica/nixos-config/blob/1b18628afda9cecca0bc8c348b91e3ae6ab56905/nixos/invar/btrbk.nix#L55
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# - https://github.com/oxalica/nixos-config/blob/1b18628afda9cecca0bc8c348b91e3ae6ab56905/nixos/invar/btrbk.nix#L64
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# Example2:
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# - https://github.com/emmanuelrosa/erosanix/blob/master/modules/btrbk.nix#L35-L42C7
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# Spin down (unmounted/inactive) HDD disk.
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# Inspired by https://www.reddit.com/r/NixOS/comments/751i5t/comment/do3f3l7/
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#
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# environment.systemPackages = with pkgs; [
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# hd-idle
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# ];
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# systemd.services.hd-idle = {
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# description = "Spin down inactive HDD";
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# wantedBy = [ "multi-user.target" ];
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# serviceConfig = {
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# Type = "simple";
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# # Options:
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# # -a <disk>: Select disk for subsequent parameters.
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# # -i 180: Spin down after 2 minutes (180 seconds) of inactivity.
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# ExecStart = "${pkgs.hd-idle}/bin/hd-idle -a /dev/disk/by-id/XXX-XXX-XXX -i 180"; # TODO make disk id configurable
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# };
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# };
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services.btrbk = {
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extraPackages = [ pkgs.lz4 ];
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# Lowest scheduling priority.
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niceness = 19;
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# Set of btrbk instances. The instance named btrbk is the default one.
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instances = {
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"local-snapshots" = {
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onCalendar = "hourly";
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#onCalendar = "*:0/15"; # Every 15min
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settings = {
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timestamp_format = "long";
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stream_compress = "lz4";
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snapshot_preserve_min = "2d";
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snapshot_preserve = "24h 7d 4w 6m";
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volume."/mnt/data/data" = {
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snapshot_dir = "/mnt/data/snap";
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subvolume = {
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"arch.p1st.de" = {};
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"blogger.privacy1st.de" = {};
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"changedetection.p1st.de" = {};
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"cloud.media-kollektiv.eu" = {};
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"cloud.privacy1st.de" = {};
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"git.privacy1st.de" = {};
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#"mastodon-toot-follower.privacy1st.de" = {};
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"money.p1st.de" = {};
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"music.privacy1st.de" = {};
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#"paste.p1st.de" = {};
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"proxy" = {};
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"recipe.privacy1st.de" = {};
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"traggo.privacy1st.de" = {};
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};
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};
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};
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};
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};
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};
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}
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