commit 71d15cf81660375447fea459ecd8752afc446852 · pyrox.dev/nixpkgs

nixos/modules/module-list.nix

···

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         ./services/cluster/kubernetes/pki.nix

     

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         ./services/cluster/kubernetes/proxy.nix

     

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         ./services/cluster/kubernetes/scheduler.nix

     

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         ./services/cluster/spark/default.nix

     

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         ./services/computing/boinc/client.nix

     

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         ./services/computing/foldingathome/client.nix

     

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         ./services/computing/slurm/slurm.nix

+162

nixos/modules/services/cluster/spark/default.nix

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       {config, pkgs, lib, ...}:

     

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       let

     

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         cfg = config.services.spark;

     

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       in

     

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       with lib;

     

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       {

     

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         options = {

     

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           services.spark = {

     

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             master = {

     

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               enable = mkEnableOption "Spark master service";

     

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               bind = mkOption {

     

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                 type = types.str;

     

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                 description = "Address the spark master binds to.";

     

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                 default = "127.0.0.1";

     

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                 example = "0.0.0.0";

     

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               };

     

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               restartIfChanged  = mkOption {

     

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                 type = types.bool;

     

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                 description = ''

     

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                   Automatically restart master service on config change.

     

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                   This can be set to false to defer restarts on clusters running critical applications.

     

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                   Please consider the security implications of inadvertently running an older version,

     

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                   and the possibility of unexpected behavior caused by inconsistent versions across a cluster when disabling this option.

     

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                 '';

     

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                 default = true;

     

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               };

     

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               extraEnvironment = mkOption {

     

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                 type = types.attrsOf types.str;

     

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                 description = "Extra environment variables to pass to spark master. See spark-standalone documentation.";

     

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                 default = {};

     

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                 example = {

     

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                   SPARK_MASTER_WEBUI_PORT = 8181;

     

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                   SPARK_MASTER_OPTS = "-Dspark.deploy.defaultCores=5";

     

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                 };

     

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               };

     

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             };

     

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             worker = {

     

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               enable = mkEnableOption "Spark worker service";

     

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               workDir = mkOption {

     

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                 type = types.path;

     

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                 description = "Spark worker work dir.";

     

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                 default = "/var/lib/spark";

     

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               };

     

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               master = mkOption {

     

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                 type = types.str;

     

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                 description = "Address of the spark master.";

     

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                 default = "127.0.0.1:7077";

     

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               };

     

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               restartIfChanged  = mkOption {

     

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                 type = types.bool;

     

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                 description = ''

     

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                   Automatically restart worker service on config change.

     

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                   This can be set to false to defer restarts on clusters running critical applications.

     

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                   Please consider the security implications of inadvertently running an older version,

     

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                   and the possibility of unexpected behavior caused by inconsistent versions across a cluster when disabling this option.

     

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                 '';

     

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                 default = true;

     

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               };

     

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               extraEnvironment = mkOption {

     

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                 type = types.attrsOf types.str;

     

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                 description = "Extra environment variables to pass to spark worker.";

     

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                 default = {};

     

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                 example = {

     

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                   SPARK_WORKER_CORES = 5;

     

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                   SPARK_WORKER_MEMORY = "2g";

     

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                 };

     

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               };

     

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             };

     

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             confDir = mkOption {

     

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               type = types.path;

     

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               description = "Spark configuration directory. Spark will use the configuration files (spark-defaults.conf, spark-env.sh, log4j.properties, etc) from this directory.";

     

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               default = "${cfg.package}/lib/${cfg.package.untarDir}/conf";

     

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               defaultText = literalExample "\${cfg.package}/lib/\${cfg.package.untarDir}/conf";

     

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             };

     

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             logDir = mkOption {

     

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               type = types.path;

     

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               description = "Spark log directory.";

     

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               default = "/var/log/spark";

     

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             };

     

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             package = mkOption {

     

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               type = types.package;

     

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               description = "Spark package.";

     

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               default = pkgs.spark;

     

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               defaultText = "pkgs.spark";

     

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               example = literalExample ''pkgs.spark.overrideAttrs (super: rec {

     

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                 pname = "spark";

     

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                 version = "2.4.4";

     

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                 src = pkgs.fetchzip {

     

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                   url    = "mirror://apache/spark/"''${pname}-''${version}/''${pname}-''${version}-bin-without-hadoop.tgz";

     

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                   sha256 = "1a9w5k0207fysgpxx6db3a00fs5hdc2ncx99x4ccy2s0v5ndc66g";

     

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                 };

     

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               })'';

     

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             };

     

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           };

     

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         };

     

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         config = lib.mkIf (cfg.worker.enable || cfg.master.enable) {

     

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           environment.systemPackages = [ cfg.package ];

     

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           systemd = {

     

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             services = {

     

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               spark-master = lib.mkIf cfg.master.enable {

     

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                 path = with pkgs; [ procps openssh nettools ];

     

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                 description = "spark master service.";

     

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                 after = [ "network.target" ];

     

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                 wantedBy = [ "multi-user.target" ];

     

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                 restartIfChanged = cfg.master.restartIfChanged;

     

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                 environment = cfg.master.extraEnvironment // {

     

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                   SPARK_MASTER_HOST = cfg.master.bind;

     

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                   SPARK_CONF_DIR = cfg.confDir;

     

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                   SPARK_LOG_DIR = cfg.logDir;

     

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                 };

     

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                 serviceConfig = {

     

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                   Type = "forking";

     

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                   User = "spark";

     

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                   Group = "spark";

     

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                   WorkingDirectory = "${cfg.package}/lib/${cfg.package.untarDir}";

     

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                   ExecStart = "${cfg.package}/lib/${cfg.package.untarDir}/sbin/start-master.sh";

     

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                   ExecStop  = "${cfg.package}/lib/${cfg.package.untarDir}/sbin/stop-master.sh";

     

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                   TimeoutSec = 300;

     

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                   StartLimitBurst=10;

     

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                   Restart = "always";

     

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                 };

     

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               };

     

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               spark-worker = lib.mkIf cfg.worker.enable {

     

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                 path = with pkgs; [ procps openssh nettools rsync ];

     

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                 description = "spark master service.";

     

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                 after = [ "network.target" ];

     

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                 wantedBy = [ "multi-user.target" ];

     

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                 restartIfChanged = cfg.worker.restartIfChanged;

     

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                 environment = cfg.worker.extraEnvironment // {

     

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                   SPARK_MASTER = cfg.worker.master;

     

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                   SPARK_CONF_DIR = cfg.confDir;

     

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                   SPARK_LOG_DIR = cfg.logDir;

     

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                   SPARK_WORKER_DIR = cfg.worker.workDir;

     

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                 };

     

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                 serviceConfig = {

     

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                   Type = "forking";

     

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                   User = "spark";

     

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                   WorkingDirectory = "${cfg.package}/lib/${cfg.package.untarDir}";

     

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                   ExecStart = "${cfg.package}/lib/${cfg.package.untarDir}/sbin/start-worker.sh spark://${cfg.worker.master}";

     

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                   ExecStop  = "${cfg.package}/lib/${cfg.package.untarDir}/sbin/stop-worker.sh";

     

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                   TimeoutSec = 300;

     

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                   StartLimitBurst=10;

     

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                   Restart = "always";

     

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                 };

     

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               };

     

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             };

     

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             tmpfiles.rules = [

     

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               "d '${cfg.worker.workDir}' - spark spark - -"

     

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               "d '${cfg.logDir}' - spark spark - -"

     

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             ];

     

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           };

     

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           users = {

     

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             users.spark = {

     

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               description = "spark user.";

     

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               group = "spark";

     

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               isSystemUser = true;

     

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             };

     

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             groups.spark = { };

     

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           };

     

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         };

     

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       }