2014-04-14 07:26:48 -07:00
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{ config, lib, pkgs, ... }:
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2009-12-03 04:20:24 -08:00
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2014-04-14 07:26:48 -07:00
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with lib;
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2009-03-06 04:27:02 -08:00
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2007-12-02 20:48:31 -08:00
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let
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2008-02-18 03:56:43 -08:00
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cfg = config.services.postgresql;
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2010-05-09 13:42:00 -07:00
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# see description of extraPlugins
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postgresqlAndPlugins = pg:
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if cfg.extraPlugins == [] then pg
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2010-11-03 15:37:39 -07:00
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else pkgs.buildEnv {
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2012-03-19 11:06:18 -07:00
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name = "postgresql-and-plugins-${(builtins.parseDrvName pg.name).version}";
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2010-05-09 13:42:00 -07:00
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paths = [ pg ] ++ cfg.extraPlugins;
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2010-11-03 15:37:39 -07:00
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postBuild =
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''
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mkdir -p $out/bin
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rm $out/bin/{pg_config,postgres,pg_ctl}
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cp --target-directory=$out/bin ${pg}/bin/{postgres,pg_config,pg_ctl}
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'';
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};
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2010-05-09 13:42:00 -07:00
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2012-08-15 14:01:19 -07:00
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postgresql = postgresqlAndPlugins cfg.package;
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2008-02-18 03:56:43 -08:00
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2009-12-03 04:20:24 -08:00
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flags = optional cfg.enableTCPIP "-i";
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2009-05-15 01:00:20 -07:00
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2009-12-02 09:18:25 -08:00
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# The main PostgreSQL configuration file.
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configFile = pkgs.writeText "postgresql.conf"
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''
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hba_file = '${pkgs.writeText "pg_hba.conf" cfg.authentication}'
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ident_file = '${pkgs.writeText "pg_ident.conf" cfg.identMap}'
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2013-07-13 19:57:50 -07:00
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log_destination = 'stderr'
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2013-11-27 03:36:32 -08:00
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port = ${toString cfg.port}
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2011-06-27 03:15:26 -07:00
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${cfg.extraConfig}
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2011-09-14 11:20:50 -07:00
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'';
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2009-12-02 09:18:25 -08:00
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2012-03-19 11:06:18 -07:00
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pre84 = versionOlder (builtins.parseDrvName postgresql.name).version "8.4";
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2012-08-06 08:45:59 -07:00
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2007-12-02 20:48:31 -08:00
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in
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2008-02-18 03:56:43 -08:00
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2009-07-15 04:19:11 -07:00
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{
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###### interface
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2011-09-14 11:20:50 -07:00
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2009-07-15 04:19:11 -07:00
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options = {
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2011-09-14 11:20:50 -07:00
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2009-07-15 04:19:11 -07:00
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services.postgresql = {
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2011-09-14 11:20:50 -07:00
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2009-07-15 04:19:11 -07:00
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enable = mkOption {
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2013-10-30 09:37:45 -07:00
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type = types.bool;
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2009-07-15 04:19:11 -07:00
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default = false;
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description = ''
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Whether to run PostgreSQL.
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'';
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};
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2011-09-14 11:20:50 -07:00
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2012-08-15 14:01:19 -07:00
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package = mkOption {
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2014-02-27 04:22:04 -08:00
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type = types.package;
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2013-04-04 09:21:51 -07:00
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example = literalExample "pkgs.postgresql92";
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2012-08-15 14:01:19 -07:00
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description = ''
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PostgreSQL package to use.
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'';
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};
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2009-07-15 04:19:11 -07:00
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port = mkOption {
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2013-10-30 09:37:45 -07:00
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type = types.int;
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2013-11-27 03:36:32 -08:00
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default = 5432;
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2009-07-15 04:19:11 -07:00
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description = ''
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2013-11-27 03:36:32 -08:00
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The port on which PostgreSQL listens.
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2009-07-15 04:19:11 -07:00
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'';
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};
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2011-09-14 11:20:50 -07:00
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2009-07-15 04:19:11 -07:00
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dataDir = mkOption {
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2013-10-30 09:37:45 -07:00
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type = types.path;
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2013-04-05 06:20:50 -07:00
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default = "/var/db/postgresql";
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2009-07-15 04:19:11 -07:00
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description = ''
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Data directory for PostgreSQL.
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'';
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};
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2011-09-14 11:20:50 -07:00
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2009-07-15 04:19:11 -07:00
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authentication = mkOption {
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2013-10-30 09:37:45 -07:00
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type = types.lines;
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2012-03-19 09:49:13 -07:00
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default = "";
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2009-07-15 04:19:11 -07:00
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description = ''
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2014-01-11 14:01:21 -08:00
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Defines how users authenticate themselves to the server. By
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default, "trust" access to local users will always be granted
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along with any other custom options. If you do not want this,
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2014-05-05 11:58:51 -07:00
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set this option using "lib.mkForce" to override this
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2014-01-11 14:01:21 -08:00
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behaviour.
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2009-07-15 04:19:11 -07:00
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'';
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};
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2011-09-14 11:20:50 -07:00
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2009-12-02 09:18:25 -08:00
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identMap = mkOption {
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2013-10-30 09:37:45 -07:00
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type = types.lines;
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2009-12-02 09:18:25 -08:00
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default = "";
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2009-07-15 04:19:11 -07:00
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description = ''
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2009-12-02 09:18:25 -08:00
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Defines the mapping from system users to database users.
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2009-07-15 04:19:11 -07:00
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'';
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};
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2011-09-14 11:20:50 -07:00
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2013-07-13 20:01:48 -07:00
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initialScript = mkOption {
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type = types.nullOr types.path;
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2013-10-30 09:37:45 -07:00
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default = null;
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2013-07-13 20:01:48 -07:00
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description = ''
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A file containing SQL statements to execute on first startup.
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'';
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};
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2009-07-15 04:19:11 -07:00
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enableTCPIP = mkOption {
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2013-10-30 09:37:45 -07:00
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type = types.bool;
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2009-07-15 04:19:11 -07:00
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default = false;
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description = ''
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2013-11-27 03:36:32 -08:00
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Whether PostgreSQL should listen on all network interfaces.
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If disabled, the database can only be accessed via its Unix
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domain socket or via TCP connections to localhost.
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2009-07-15 04:19:11 -07:00
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'';
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};
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2010-05-09 13:42:00 -07:00
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extraPlugins = mkOption {
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2013-10-30 09:37:45 -07:00
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type = types.listOf types.path;
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2010-05-09 13:42:00 -07:00
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default = [];
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2013-10-30 09:37:45 -07:00
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example = literalExample "pkgs.postgis";
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2010-05-09 13:42:00 -07:00
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description = ''
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2010-06-13 13:59:49 -07:00
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When this list contains elements a new store path is created.
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PostgreSQL and the elments are symlinked into it. Then pg_config,
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2010-05-09 13:42:00 -07:00
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postgres and pc_ctl are copied to make them use the new
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2010-06-13 13:59:49 -07:00
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$out/lib directory as pkglibdir. This makes it possible to use postgis
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2010-05-09 13:42:00 -07:00
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without patching the .sql files which reference $libdir/postgis-1.5.
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'';
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# Note: the duplication of executables is about 4MB size.
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# So a nicer solution was patching postgresql to allow setting the
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# libdir explicitely.
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};
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2011-09-14 11:20:50 -07:00
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2011-06-27 03:15:26 -07:00
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extraConfig = mkOption {
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2013-10-30 09:37:45 -07:00
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type = types.lines;
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2011-06-27 03:15:26 -07:00
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default = "";
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description = "Additional text to be appended to <filename>postgresql.conf</filename>.";
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};
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2013-07-13 20:04:10 -07:00
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recoveryConfig = mkOption {
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2013-10-30 09:37:45 -07:00
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type = types.nullOr types.lines;
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2013-07-13 20:04:10 -07:00
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default = null;
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description = ''
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2013-10-30 09:37:45 -07:00
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Contents of the <filename>recovery.conf</filename> file.
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2013-07-13 20:04:10 -07:00
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'';
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};
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2009-07-15 04:19:11 -07:00
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};
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};
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2008-02-18 03:56:43 -08:00
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2009-07-15 04:19:11 -07:00
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###### implementation
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2011-09-14 11:20:50 -07:00
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2009-07-15 04:19:11 -07:00
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config = mkIf config.services.postgresql.enable {
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2015-07-27 11:26:19 -07:00
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services.postgresql.package =
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# Note: when changing the default, make it conditional on
|
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# ‘system.stateVersion’ to maintain compatibility with existing
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# systems!
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mkDefault pkgs.postgresql94;
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2015-07-01 04:46:38 -07:00
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services.postgresql.authentication = mkAfter
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2012-03-19 09:49:13 -07:00
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''
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# Generated file; do not edit!
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2012-03-19 11:06:18 -07:00
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local all all ident ${optionalString pre84 "sameuser"}
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2012-03-19 09:49:13 -07:00
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host all all 127.0.0.1/32 md5
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host all all ::1/128 md5
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'';
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2012-08-06 08:45:59 -07:00
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2013-08-23 02:33:24 -07:00
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users.extraUsers.postgres =
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2009-03-06 04:27:02 -08:00
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{ name = "postgres";
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2013-08-23 02:33:24 -07:00
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uid = config.ids.uids.postgres;
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group = "postgres";
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2009-03-06 04:27:02 -08:00
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description = "PostgreSQL server user";
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2009-07-15 04:19:11 -07:00
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};
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2009-03-06 04:27:02 -08:00
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2013-08-23 02:33:24 -07:00
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users.extraGroups.postgres.gid = config.ids.gids.postgres;
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2009-03-06 04:27:02 -08:00
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2009-07-15 04:19:11 -07:00
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environment.systemPackages = [postgresql];
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2009-03-06 04:27:02 -08:00
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2013-01-16 03:33:18 -08:00
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systemd.services.postgresql =
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2012-12-18 04:40:04 -08:00
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{ description = "PostgreSQL Server";
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2009-03-06 04:27:02 -08:00
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2012-08-14 15:15:37 -07:00
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wantedBy = [ "multi-user.target" ];
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2012-12-18 04:40:04 -08:00
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after = [ "network.target" ];
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2009-03-06 04:27:02 -08:00
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2013-04-22 09:56:19 -07:00
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environment.PGDATA = cfg.dataDir;
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2009-11-06 14:56:47 -08:00
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2012-03-19 09:49:13 -07:00
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path = [ pkgs.su postgresql ];
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2009-10-12 10:09:38 -07:00
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preStart =
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''
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2009-11-06 15:37:31 -08:00
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# Initialise the database.
|
2015-07-02 00:08:02 -07:00
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if ! test -e ${cfg.dataDir}/PG_VERSION; then
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2009-03-06 04:27:02 -08:00
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mkdir -m 0700 -p ${cfg.dataDir}
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2015-07-02 00:08:02 -07:00
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rm -f ${cfg.dataDir}/*.conf
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2013-11-18 07:51:39 -08:00
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if [ "$(id -u)" = 0 ]; then
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chown -R postgres ${cfg.dataDir}
|
2014-04-11 16:23:03 -07:00
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su -s ${pkgs.stdenv.shell} postgres -c 'initdb -U root'
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2013-11-18 07:51:39 -08:00
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else
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# For non-root operation.
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initdb
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fi
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2009-03-06 04:27:02 -08:00
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fi
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2009-12-02 09:18:25 -08:00
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2013-07-13 20:04:10 -07:00
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ln -sfn "${configFile}" "${cfg.dataDir}/postgresql.conf"
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${optionalString (cfg.recoveryConfig != null) ''
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ln -sfn "${pkgs.writeText "recovery.conf" cfg.recoveryConfig}" \
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"${cfg.dataDir}/recovery.conf"
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''}
|
2012-03-19 09:49:13 -07:00
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''; # */
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2009-11-06 15:37:31 -08:00
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|
2012-08-06 08:45:59 -07:00
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serviceConfig =
|
2012-10-01 13:47:54 -07:00
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{ ExecStart = "@${postgresql}/bin/postgres postgres ${toString flags}";
|
2015-07-23 18:41:32 -07:00
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ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
|
2012-10-01 13:47:54 -07:00
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User = "postgres";
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Group = "postgres";
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PermissionsStartOnly = true;
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# Shut down Postgres using SIGINT ("Fast Shutdown mode"). See
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2012-04-30 11:15:32 -07:00
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# http://www.postgresql.org/docs/current/static/server-shutdown.html
|
2012-10-01 13:27:42 -07:00
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KillSignal = "SIGINT";
|
2014-04-18 08:32:24 -07:00
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KillMode = "mixed";
|
2012-04-30 11:15:32 -07:00
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|
2012-03-19 09:49:13 -07:00
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# Give Postgres a decent amount of time to clean up after
|
2012-08-06 08:45:59 -07:00
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|
|
# receiving systemd's SIGINT.
|
2013-05-07 05:59:08 -07:00
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TimeoutSec = 120;
|
2012-10-01 13:27:42 -07:00
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};
|
2012-10-01 13:47:54 -07:00
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|
# Wait for PostgreSQL to be ready to accept connections.
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|
postStart =
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|
''
|
2014-09-27 05:37:11 -07:00
|
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|
|
while ! psql --port=${toString cfg.port} postgres -c "" 2> /dev/null; do
|
2012-12-19 03:59:28 -08:00
|
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|
|
if ! kill -0 "$MAINPID"; then exit 1; fi
|
2012-10-01 14:32:03 -07:00
|
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|
|
sleep 0.1
|
2012-10-01 13:47:54 -07:00
|
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done
|
2013-07-13 20:01:48 -07:00
|
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|
|
if test -e "${cfg.dataDir}/.first_startup"; then
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|
|
|
${optionalString (cfg.initialScript != null) ''
|
2014-09-27 05:37:11 -07:00
|
|
|
|
cat "${cfg.initialScript}" | psql --port=${toString cfg.port} postgres
|
2013-07-13 20:01:48 -07:00
|
|
|
|
''}
|
|
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|
|
rm -f "${cfg.dataDir}/.first_startup"
|
|
|
|
|
fi
|
2012-10-01 13:47:54 -07:00
|
|
|
|
'';
|
2012-10-01 13:53:13 -07:00
|
|
|
|
|
|
|
|
|
unitConfig.RequiresMountsFor = "${cfg.dataDir}";
|
2009-10-12 10:09:38 -07:00
|
|
|
|
};
|
2009-07-15 04:19:11 -07:00
|
|
|
|
|
2009-03-06 04:27:02 -08:00
|
|
|
|
};
|
2011-09-14 11:20:50 -07:00
|
|
|
|
|
2007-12-02 20:48:31 -08:00
|
|
|
|
}
|