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https://github.com/kiberpipa/nix-rehash.git
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Add 'nix-services/' from commit 'bbc5bf5bcf4466c7acd3ef978ae77daa8cae9bac'
git-subtree-dir: nix-services git-subtree-mainline:6f91df3199
git-subtree-split:bbc5bf5bcf
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commit
237e857126
75
nix-services/default.nix
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75
nix-services/default.nix
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@ -0,0 +1,75 @@
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{ pkgs ? import <nixpkgs> { system = "x86_64-linux"; }
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, name
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, configuration ? [<configuration>]
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, baseImage ? "busybox"
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}:
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with pkgs.lib;
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let
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moduleList = [
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./user.nix ./supervisord.nix ./systemd.nix ./environment.nix
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<nixpkgs/nixos/modules/config/users-groups.nix>
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<nixpkgs/nixos/modules/misc/ids.nix>
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<nixpkgs/nixos/modules/misc/assertions.nix>
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<nixpkgs/nixos/modules/services/databases/redis.nix>
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<nixpkgs/nixos/modules/services/databases/mysql.nix>
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<nixpkgs/nixos/modules/services/databases/postgresql.nix>
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<nixpkgs/nixos/modules/services/search/elasticsearch.nix>
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<nixpkgs/nixos/modules/services/monitoring/graphite.nix>
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<nixpkgs/nixos/modules/services/monitoring/statsd.nix>
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<nixpkgs/nixos/modules/services/amqp/rabbitmq.nix>
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<nixpkgs/nixos/modules/services/databases/couchdb.nix>
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];
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config = (evalModules {
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modules = configuration ++ moduleList;
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args = { inherit pkgs; };
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}).config;
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systemd = import ./systemd.nix { inherit pkgs config; };
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startServices = pkgs.writeScript "startServices" ''
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#!/bin/sh
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export STATEDIR="${"\$"}{STATEDIR-$(pwd)/var}"
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export PATH="${pkgs.coreutils}/bin"
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mkdir -p $STATEDIR/{run,log}
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# Run start scripts first
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${config.userNix.startScript}
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# Run supervisord
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${pkgs.pythonPackages.supervisor}/bin/supervisord -c ${config.supervisord.configFile} -j $STATEDIR/run/supervisord.pid -d $STATEDIR -q $STATEDIR/log/ -l $STATEDIR/log/supervisord.log
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'';
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stopServices = pkgs.writeScript "stopServices" ''
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#!/bin/sh
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${pkgs.pythonPackages.supervisor}/bin/supervisorctl -c ${config.supervisord.configFile} shutdown
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'';
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controlServices = pkgs.writeScript "controlServices" ''
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#!/bin/sh
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${pkgs.pythonPackages.supervisor}/bin/supervisorctl -c ${config.supervisord.configFile}
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'';
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servicesControl = pkgs.stdenv.mkDerivation {
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name = "${name}-servicesControl";
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src = ./.;
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phases = [ "installPhase" ];
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installPhase = ''
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ensureDir $out/bin/
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ln -s ${startServices} $out/bin/${name}-start-services
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ln -s ${stopServices} $out/bin/${name}-stop-services
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ln -s ${controlServices} $out/bin/${name}-control-services
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'';
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passthru.config = config;
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};
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in pkgs.buildEnv {
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name = "${name}-services";
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paths = [ servicesControl ] ++ config.environment.systemPackages;
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}
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23
nix-services/environment.nix
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23
nix-services/environment.nix
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@ -0,0 +1,23 @@
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{ config, pkgs, ... }:
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with pkgs.lib;
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{
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options = {
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environment.systemPackages = mkOption {
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default = [];
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description = "Packages to be put in the system profile.";
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};
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environment.umask = mkOption {
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default = "002";
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type = with types; string;
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};
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# HACK HACK
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system.activationScripts.etc = mkOption {}; # Ignore
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system.build.etc = mkOption {}; # Ignore
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};
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config = {
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environment.systemPackages = with pkgs; [ coreutils ];
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};
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}
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102
nix-services/supervisord.nix
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102
nix-services/supervisord.nix
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{ config, pkgs, ... }:
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with pkgs.lib;
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let
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serviceOpts = { name, config, ...}: {
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options = {
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command = mkOption {
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description = "The command to execute";
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};
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directory = mkOption {
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default = "/";
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description = "Current directory when running the command";
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};
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environment = mkOption {
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default = {};
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example = {
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PATH = "/some/path";
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};
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};
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path = mkOption {
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default = [];
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description = "Current directory when running the command";
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};
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stopsignal = mkOption {
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default = "TERM";
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};
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startsecs = mkOption {
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default = 1;
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example = 0;
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};
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pidfile = mkOption {
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default = null;
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};
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};
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};
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services = config.supervisord.services;
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in {
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options = {
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supervisord = {
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enable = mkOption {
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default = true;
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type = types.bool;
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};
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services = mkOption {
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default = {};
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type = types.loaOf types.optionSet;
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description = ''
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Supervisord services to start
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'';
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options = [ serviceOpts ];
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};
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tailLogs = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Whether or not to tail all logs to standard out.
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'';
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};
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configFile = mkOption {};
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};
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};
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config = mkIf config.supervisord.enable {
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supervisord.configFile = pkgs.writeText "supervisord.conf" ''
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[supervisord]
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[supervisorctl]
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serverurl = http://localhost:64125
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[inet_http_server]
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port = 127.0.0.1:64125
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[rpcinterface:supervisor]
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supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
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${concatMapStrings (name:
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let
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cfg = getAttr name services;
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in
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''
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[program:${name}]
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command=${if cfg.pidfile == null then cfg.command else "${pkgs.pythonPackages.supervisor}/bin/pidproxy ${cfg.pidfile} ${cfg.command}"}
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environment=${concatStrings
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(mapAttrsToList (name: value: "${name}=\"${value}\",") (
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cfg.environment // { PATH = concatStringsSep ":"
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[("%(ENV_PATH)s") (cfg.path) (maybeAttr "PATH" "" cfg.environment)];
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}
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)
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)}
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directory=${cfg.directory}
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redirect_stderr=true
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startsecs=${toString cfg.startsecs}
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stopsignal=${cfg.stopsignal}
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stopasgroup=true
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''
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) (attrNames services)
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}
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'';
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};
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}
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65
nix-services/systemd.nix
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65
nix-services/systemd.nix
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@ -0,0 +1,65 @@
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{ pkgs, config, ... }:
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with pkgs.lib;
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with import <nixpkgs/nixos/modules/system/boot/systemd-unit-options.nix> { inherit config pkgs; };
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let
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services = config.systemd.services;
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isOneShot = cfg: hasAttr "Type" cfg.serviceConfig && cfg.serviceConfig.Type == "oneshot";
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runServices = filterAttrs (name: cfg: !(isOneShot cfg)) services;
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oneShotServices = filterAttrs (name: cfg: isOneShot cfg) services;
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filterCommand = cmd:
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let
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filtered = substring 1 (stringLength cmd -2) cmd;
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splitted = pkgs.lib.splitString (" " + substring 0 0 filtered) filtered;
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in if eqStrings (substring 0 1 cmd) "@" then
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traceVal (head splitted) + concatStringsSep " " (drop 2 splitted)
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else cmd;
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configToCommand = name: cfg: ''
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#!/bin/sh -e
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${if hasAttr "preStart" cfg then cfg.preStart else ""}
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${if hasAttr "ExecStart" cfg.serviceConfig then
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filterCommand cfg.serviceConfig.ExecStart
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else if hasAttr "script" cfg then
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cfg.script
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else
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""
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}
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${if hasAttr "postStart" cfg then cfg.postStart else ""}
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'';
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in {
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options = {
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systemd.services = mkOption {
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default = {};
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type = types.attrsOf types.optionSet;
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options = [ serviceOptions ];
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}; # TODO make more specific
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};
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config = {
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userNix.startScripts."1-systemd-oneshot" = concatMapStrings (name: "${configToCommand name (getAttr name oneShotServices)}\n") (attrNames oneShotServices);
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supervisord.services = listToAttrs (map (name:
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let
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cfg = getAttr name services;
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in
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{
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name = name;
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value = {
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command = pkgs.writeScript "${name}-run" (configToCommand name cfg);
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environment = cfg.environment;
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path = cfg.path;
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stopsignal = if hasAttr "KillSignal" cfg.serviceConfig then
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substring 3 (stringLength cfg.serviceConfig.KillSignal) cfg.serviceConfig.KillSignal
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else "TERM";
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pidfile = if hasAttr "PIDFile" cfg.serviceConfig then cfg.serviceConfig.PIDFile else null;
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};
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}
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) (attrNames (filterAttrs (n: v: v.enable) runServices)));
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};
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}
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17
nix-services/user.nix
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17
nix-services/user.nix
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@ -0,0 +1,17 @@
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{ config, pkgs, ... }:
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with pkgs.lib;
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{
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options = {
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userNix.startScripts = mkOption {
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default = {};
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description = "Scripts (as text) to be run during build, executed alphabetically";
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};
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userNix.startScript = mkOption {};
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};
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config = {
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userNix.startScript = concatStrings (attrValues config.userNix.startScripts);
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};
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}
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