90 lines
3.4 KiB
Nix
90 lines
3.4 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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/*
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to restore mysql/marinadb database:
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mysql -u root -p -e "DROP DATABASE IF EXISTS <database_name>;" # delete old db if still lingering
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mysql -u root -p -e "CREATE DATABASE IF NOT EXISTS <database_name>;" # create empty db w/ correct name
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zstd -dc <path_to_backup> | mysql -u root -p <database_name>
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to restore a postgres database:
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sudo -u postgres psql -c "DROP DATABASE IF EXISTS <database_name>;" # delete old db if lingering (prolly wont work)
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sudo -u postgres psql -c "CREATE DATABASE <database_name>;" # create empty db w/ correct name
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zstd -dc <path_to_backup> | sudo -u postgres psql -d immich # restore from the dump
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*/
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let
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cfg = config.homelab.backups;
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sec = config.sops.secrets;
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in {
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options.homelab.backups = {
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enable = lib.mkEnableOption "enables borg backups for state files and db backup services";
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baks = lib.mkOption {
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type = lib.types.attrsOf (lib.types.attrsOf (lib.types.listOf lib.types.path));
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default = {};
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description = "backup jobs, nested attribute sets should be <bak_name> = paths [<list_of_paths>]";
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};
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backup_repo = lib.mkOption {
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type = lib.types.path;
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default = "/holocron/archives/homelab";
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description = "path to take daily backups to with borg!";
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};
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};
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config = lib.mkIf cfg.enable {
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# backups homelab with borg
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services.borgbackup.jobs.homelab = lib.mkIf (cfg.baks != {}) {
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archiveBaseName = "homelab";
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repo = cfg.backup_repo;
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paths = lib.flatten (lib.attrsets.mapAttrsToList (_: arg: arg.paths) cfg.baks);
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compression = "auto,zstd";
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startAt = "03:30";
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group = "archives";
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encryption.mode = "repokey-blake2";
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encryption.passCommand = "cat ${sec."borg_passwd".path}";
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preHook = ''
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systemctl start mysql-backup.service
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systemctl start $(systemctl list-unit-files 'postgresqlBackup-*.service' --no-legend --no-pager | cut -d' ' -f1)
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'';
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extraArgs = ["--verbose" "--show-rc" "--umask" "0007"];
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extraCreateArgs = ["--list" "--stats" "--filter" "AME"];
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prune.keep = {
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within = "1d"; # Keep all archives from the last day
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daily = 7;
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weekly = 12;
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monthly = -1; # Keep at least one archive for each month
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};
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};
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# mysql backups currently minecraft_recpro is the only thing using this
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services.mysqlBackup = lib.mkIf (config.services.mysql.ensureDatabases != []) {
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enable = true;
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location = "/var/backup/mysql";
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user = "root";
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calendar = "daily"; # goes fast, included in back up with server dirs at **:00
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compressionAlg = "zstd";
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databases = config.services.mysql.ensureDatabases; # set to all databases defined in esure databases
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};
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# postgresql backups currently immich is the only user
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services.postgresqlBackup = lib.mkIf (config.services.postgresql.ensureDatabases != []) {
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enable = true;
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location = "/var/backup/postgresql";
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compression = "zstd"; # optional: "xz", "zstd", "none"
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startAt = "daily"; # the dump is included in a backup taken at 4:00
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databases = config.services.postgresql.ensureDatabases; # set to all databases defined in esure databases
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};
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# helpful and for scripts
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environment.systemPackages = with pkgs; [borgbackup tree];
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sops.secrets = {
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"borg_passwd" = {
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owner = "root";
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group = "root";
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};
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};
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};
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}
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