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nixos/services.postgresqlWalReceiver: remove with lib;

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This commit is contained in:
Felix Buehler 2024-08-28 21:18:53 +02:00 committed by Jörg Thalheim
parent 5c0e7f70a5
commit dee892a446
1 changed files with 37 additions and 40 deletions
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77
nixos/modules/services/backup/postgresql-wal-receiver.nix
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@ -1,24 +1,21 @@
{ config, lib, pkgs, ... }:
with lib;
let
receiverSubmodule = {
options = {
postgresqlPackage = mkPackageOption pkgs "postgresql" {
postgresqlPackage = lib.mkPackageOption pkgs "postgresql" {
example = "postgresql_15";
};
directory = mkOption {
type = types.path;
example = literalExpression "/mnt/pg_wal/main/";
directory = lib.mkOption {
type = lib.types.path;
example = lib.literalExpression "/mnt/pg_wal/main/";
description = ''
Directory to write the output to.
'';
};
statusInterval = mkOption {
type = types.int;
statusInterval = lib.mkOption {
type = lib.types.int;
default = 10;
description = ''
Specifies the number of seconds between status packets sent back to the server.
@ -28,8 +25,8 @@ let
'';
};
slot = mkOption {
type = types.str;
slot = lib.mkOption {
type = lib.types.str;
default = "";
example = "some_slot_name";
description = ''
@ -45,8 +42,8 @@ let
'';
};
synchronous = mkOption {
type = types.bool;
synchronous = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Flush the WAL data to disk immediately after it has been received.
@ -57,8 +54,8 @@ let
'';
};
compress = mkOption {
type = types.ints.between 0 9;
compress = lib.mkOption {
type = lib.types.ints.between 0 9;
default = 0;
description = ''
Enables gzip compression of write-ahead logs, and specifies the compression level
@ -69,8 +66,8 @@ let
'';
};
connection = mkOption {
type = types.str;
connection = lib.mkOption {
type = lib.types.str;
example = "postgresql://user@somehost";
description = ''
Specifies parameters used to connect to the server, as a connection string.
@ -81,10 +78,10 @@ let
'';
};
extraArgs = mkOption {
type = with types; listOf str;
extraArgs = lib.mkOption {
type = with lib.types; listOf str;
default = [ ];
example = literalExpression ''
example = lib.literalExpression ''
[
"--no-sync"
]
@ -94,10 +91,10 @@ let
'';
};
environment = mkOption {
type = with types; attrsOf str;
environment = lib.mkOption {
type = with lib.types; attrsOf str;
default = { };
example = literalExpression ''
example = lib.literalExpression ''
{
PGPASSFILE = "/private/passfile";
PGSSLMODE = "require";
@ -114,10 +111,10 @@ let
in {
options = {
services.postgresqlWalReceiver = {
receivers = mkOption {
type = with types; attrsOf (submodule receiverSubmodule);
receivers = lib.mkOption {
type = with lib.types; attrsOf (submodule receiverSubmodule);
default = { };
example = literalExpression ''
example = lib.literalExpression ''
{
main = {
postgresqlPackage = pkgs.postgresql_15;
@ -138,7 +135,7 @@ in {
config = let
receivers = config.services.postgresqlWalReceiver.receivers;
in mkIf (receivers != { }) {
in lib.mkIf (receivers != { }) {
users = {
users.postgres = {
uid = config.ids.uids.postgres;
@ -151,18 +148,18 @@ in {
};
};
assertions = concatLists (attrsets.mapAttrsToList (name: config: [
assertions = lib.concatLists (lib.attrsets.mapAttrsToList (name: config: [
{
assertion = config.compress > 0 -> versionAtLeast config.postgresqlPackage.version "10";
assertion = config.compress > 0 -> lib.versionAtLeast config.postgresqlPackage.version "10";
message = "Invalid configuration for WAL receiver \"${name}\": compress requires PostgreSQL version >= 10.";
}
]) receivers);
systemd.tmpfiles.rules = mapAttrsToList (name: config: ''
d ${escapeShellArg config.directory} 0750 postgres postgres - -
systemd.tmpfiles.rules = lib.mapAttrsToList (name: config: ''
d ${lib.escapeShellArg config.directory} 0750 postgres postgres - -
'') receivers;
systemd.services = with attrsets; mapAttrs' (name: config: nameValuePair "postgresql-wal-receiver-${name}" {
systemd.services = lib.mapAttrs' (name: config: lib.nameValuePair "postgresql-wal-receiver-${name}" {
description = "PostgreSQL WAL receiver (${name})";
wantedBy = [ "multi-user.target" ];
startLimitIntervalSec = 0; # retry forever, useful in case of network disruption
@ -179,22 +176,22 @@ in {
script = let
receiverCommand = postgresqlPackage:
if (versionAtLeast postgresqlPackage.version "10")
if (lib.versionAtLeast postgresqlPackage.version "10")
then "${postgresqlPackage}/bin/pg_receivewal"
else "${postgresqlPackage}/bin/pg_receivexlog";
in ''
${receiverCommand config.postgresqlPackage} \
--no-password \
--directory=${escapeShellArg config.directory} \
--directory=${lib.escapeShellArg config.directory} \
--status-interval=${toString config.statusInterval} \
--dbname=${escapeShellArg config.connection} \
${optionalString (config.compress > 0) "--compress=${toString config.compress}"} \
${optionalString (config.slot != "") "--slot=${escapeShellArg config.slot}"} \
${optionalString config.synchronous "--synchronous"} \
${concatStringsSep " " config.extraArgs}
--dbname=${lib.escapeShellArg config.connection} \
${lib.optionalString (config.compress > 0) "--compress=${toString config.compress}"} \
${lib.optionalString (config.slot != "") "--slot=${lib.escapeShellArg config.slot}"} \
${lib.optionalString config.synchronous "--synchronous"} \
${lib.concatStringsSep " " config.extraArgs}
'';
}) receivers;
};
meta.maintainers = with maintainers; [ pacien ];
meta.maintainers = with lib.maintainers; [ pacien ];
}