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fix(backups): plex

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arcnmx 2024-10-02 19:43:48 -07:00
parent a202d0703f
commit 75dc495709
3 changed files with 73 additions and 48 deletions
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61
nixos/backups/restic.nix
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@ -1,10 +1,11 @@
{config, systemConfig, lib, ...}: let
{pkgs, config, systemConfig, lib, ...}: let
inherit (lib.modules) mkIf mkMerge mkDefault;
inherit (lib.attrsets) mapAttrs' mapAttrsToList nameValuePair;
inherit (lib.lists) concatMap;
inherit (lib.strings) replaceStrings;
inherit (lib.lists) concatMap toList;
inherit (lib.strings) replaceStrings concatMapStringsSep;
inherit (config.sops.secrets) restic-shared-repo-b2 restic-shared-password restic-shared-env-b2;
group = "backups";
mkSharedPath = subpath: "/mnt/shared/${subpath}";
# TODO: this properly as a module or something
sharedServices = {
hass.config = config.services.home-assistant;
@ -13,11 +14,27 @@
kanidm = {
config = config.services.kanidm;
enable = config.services.kanidm.enableServer;
subpath = "kanidm/kanidm.db";
};
mosquitto.config = config.services.mosquitto;
plex = {
config = config.services.plex;
compression = "auto";
subpath = [
"plex/Plex Media Server/Preferences.xml"
#"plex/Databases" # omitted, see dynamicFilesFrom to select only the latest backup...
];
settings = {
dynamicFilesFrom = let
databases = [
"com.plexapp.plugins.library.blobs.db"
"com.plexapp.plugins.library.db"
];
ls = "${pkgs.coreutils}/bin/ls";
tail = "${pkgs.coreutils}/bin/tail";
mkLatestDb = database: ''${ls} ${mkSharedPath "plex/Databases/${database}"}* | ${tail} -n1'';
in concatMapStringsSep " &&\n" mkLatestDb databases;
};
};
postgresql = {
# TODO: synchronize with postgresqlBackup service via flock or After=
@ -40,31 +57,31 @@
in {
services.restic.backups = let
isBackup = config.networking.hostName == "hakurei";
mkSharedPath = subpath: "/mnt/shared/${subpath}";
mkBackupB2 = name: subpath': { config, enable ? config.enable, user ? config.user or null, subpath ? subpath', path ? mkSharedPath subpath, compression ? "max" }: let
mkBackupB2 = name: subpath': { config, enable ? config.enable, user ? config.user or null, subpath ? subpath', compression ? "max", settings ? {} }: let
tags = [
"infra"
"shared-${name}"
"system-${systemConfig.name}"
];
in mkIf (enable || isBackup) {
user = mkIf (enable && user != null) user;
repositoryFile = restic-shared-repo-b2.path;
passwordFile = restic-shared-password.path;
environmentFile = restic-shared-env-b2.path;
paths = [path];
extraBackupArgs = mkMerge [
(mkIf (compression != "auto") [
"--compression" compression
])
(concatMap (tag: ["--tag" tag]) tags)
];
timerConfig = {
OnCalendar = "03:30";
Persistent = true;
RandomizedDelaySec = "4h";
conf = {
user = mkIf (enable && user != null) user;
repositoryFile = restic-shared-repo-b2.path;
passwordFile = restic-shared-password.path;
environmentFile = restic-shared-env-b2.path;
paths = map mkSharedPath (toList subpath);
extraBackupArgs = mkMerge [
(mkIf (compression != "auto") [
"--compression" compression
])
(concatMap (tag: ["--tag" tag]) tags)
];
timerConfig = {
OnCalendar = "03:30";
Persistent = true;
RandomizedDelaySec = "4h";
};
};
};
in mkIf (enable || isBackup) (mkMerge [ conf settings ]);
backups = mapAttrs' (subpath: service: let
name = replaceStrings [ "/" ] [ "-" ] subpath;
in nameValuePair "${name}-b2" (mkBackupB2 name subpath service)) sharedServices;