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nixos/services.postgresqlBackup: remove with lib;

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Felix Buehler 2024-08-28 21:18:53 +02:00 • committed by Jörg Thalheim
parent 02145eb692
commit 5c0e7f70a5
1 changed files with 24 additions and 27 deletions
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51
nixos/modules/services/backup/postgresql-backup.nix
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@ -1,7 +1,4 @@
{ config, lib, pkgs, ... }: { config, lib, pkgs, ... }:
with lib;
let let
cfg = config.services.postgresqlBackup; cfg = config.services.postgresqlBackup;
@ -13,9 +10,9 @@ let
"gzip" = ".gz"; "gzip" = ".gz";
"zstd" = ".zstd"; "zstd" = ".zstd";
}; };
compressSuffix = getAttr cfg.compression compressSuffixes; compressSuffix = lib.getAttr cfg.compression compressSuffixes;
compressCmd = getAttr cfg.compression { compressCmd = lib.getAttr cfg.compression {
"none" = "cat"; "none" = "cat";
"gzip" = "${pkgs.gzip}/bin/gzip -c -${toString cfg.compressionLevel} --rsyncable"; "gzip" = "${pkgs.gzip}/bin/gzip -c -${toString cfg.compressionLevel} --rsyncable";
"zstd" = "${pkgs.zstd}/bin/zstd -c -${toString cfg.compressionLevel} --rsyncable"; "zstd" = "${pkgs.zstd}/bin/zstd -c -${toString cfg.compressionLevel} --rsyncable";
@ -24,7 +21,7 @@ let
mkSqlPath = prefix: suffix: "${cfg.location}/${db}${prefix}.sql${suffix}"; mkSqlPath = prefix: suffix: "${cfg.location}/${db}${prefix}.sql${suffix}";
curFile = mkSqlPath "" compressSuffix; curFile = mkSqlPath "" compressSuffix;
prevFile = mkSqlPath ".prev" compressSuffix; prevFile = mkSqlPath ".prev" compressSuffix;
prevFiles = map (mkSqlPath ".prev") (attrValues compressSuffixes); prevFiles = map (mkSqlPath ".prev") (lib.attrValues compressSuffixes);
inProgressFile = mkSqlPath ".in-progress" compressSuffix; inProgressFile = mkSqlPath ".in-progress" compressSuffix;
in { in {
enable = true; enable = true;
@ -63,7 +60,7 @@ let
in { in {
imports = [ imports = [
(mkRemovedOptionModule [ "services" "postgresqlBackup" "period" ] '' (lib.mkRemovedOptionModule [ "services" "postgresqlBackup" "period" ] ''
A systemd timer is now used instead of cron. A systemd timer is now used instead of cron.
The starting time can be configured via <literal>services.postgresqlBackup.startAt</literal>. The starting time can be configured via <literal>services.postgresqlBackup.startAt</literal>.
'') '')
@ -71,11 +68,11 @@ in {
options = { options = {
services.postgresqlBackup = { services.postgresqlBackup = {
enable = mkEnableOption "PostgreSQL dumps"; enable = lib.mkEnableOption "PostgreSQL dumps";
startAt = mkOption { startAt = lib.mkOption {
default = "*-*-* 01:15:00"; default = "*-*-* 01:15:00";
type = with types; either (listOf str) str; type = with lib.types; either (listOf str) str;
description = '' description = ''
This option defines (see `systemd.time` for format) when the This option defines (see `systemd.time` for format) when the
databases should be dumped. databases should be dumped.
@ -83,9 +80,9 @@ in {
''; '';
}; };
backupAll = mkOption { backupAll = lib.mkOption {
default = cfg.databases == []; default = cfg.databases == [];
defaultText = literalExpression "services.postgresqlBackup.databases == []"; defaultText = lib.literalExpression "services.postgresqlBackup.databases == []";
type = lib.types.bool; type = lib.types.bool;
description = '' description = ''
Backup all databases using pg_dumpall. Backup all databases using pg_dumpall.
@ -96,24 +93,24 @@ in {
''; '';
}; };
databases = mkOption { databases = lib.mkOption {
default = []; default = [];
type = types.listOf types.str; type = lib.types.listOf lib.types.str;
description = '' description = ''
List of database names to dump. List of database names to dump.
''; '';
}; };
location = mkOption { location = lib.mkOption {
default = "/var/backup/postgresql"; default = "/var/backup/postgresql";
type = types.path; type = lib.types.path;
description = '' description = ''
Path of directory where the PostgreSQL database dumps will be placed. Path of directory where the PostgreSQL database dumps will be placed.
''; '';
}; };
pgdumpOptions = mkOption { pgdumpOptions = lib.mkOption {
type = types.separatedString " "; type = lib.types.separatedString " ";
default = "-C"; default = "-C";
description = '' description = ''
Command line options for pg_dump. This options is not used Command line options for pg_dump. This options is not used
@ -123,16 +120,16 @@ in {
''; '';
}; };
compression = mkOption { compression = lib.mkOption {
type = types.enum ["none" "gzip" "zstd"]; type = lib.types.enum ["none" "gzip" "zstd"];
default = "gzip"; default = "gzip";
description = '' description = ''
The type of compression to use on the generated database dump. The type of compression to use on the generated database dump.
''; '';
}; };
compressionLevel = mkOption { compressionLevel = lib.mkOption {
type = types.ints.between 1 19; type = lib.types.ints.between 1 19;
default = 6; default = 6;
description = '' description = ''
The compression level used when compression is enabled. The compression level used when compression is enabled.
@ -143,7 +140,7 @@ in {
}; };
config = mkMerge [ config = lib.mkMerge [
{ {
assertions = [ assertions = [
{ {
@ -158,17 +155,17 @@ in {
} }
]; ];
} }
(mkIf cfg.enable { (lib.mkIf cfg.enable {
systemd.tmpfiles.rules = [ systemd.tmpfiles.rules = [
"d '${cfg.location}' 0700 postgres - - -" "d '${cfg.location}' 0700 postgres - - -"
]; ];
}) })
(mkIf (cfg.enable && cfg.backupAll) { (lib.mkIf (cfg.enable && cfg.backupAll) {
systemd.services.postgresqlBackup = systemd.services.postgresqlBackup =
postgresqlBackupService "all" "pg_dumpall"; postgresqlBackupService "all" "pg_dumpall";
}) })
(mkIf (cfg.enable && !cfg.backupAll) { (lib.mkIf (cfg.enable && !cfg.backupAll) {
systemd.services = listToAttrs (map (db: systemd.services = lib.listToAttrs (map (db:
let let
cmd = "pg_dump ${cfg.pgdumpOptions} ${db}"; cmd = "pg_dump ${cfg.pgdumpOptions} ${db}";
in { in {