{ config, lib, pkgs, ...}: with lib; { imports = [ ./yarn.nix ./hdfs.nix ]; options.services.hadoop = { coreSite = mkOption { default = {}; example = { "fs.defaultFS" = "hdfs://localhost"; }; description = "Hadoop core-site.xml definition"; }; hdfsSite = mkOption { default = {}; example = { "dfs.nameservices" = "namenode1"; }; description = "Hadoop hdfs-site.xml definition"; }; mapredSite = mkOption { default = {}; example = { "mapreduce.map.cpu.vcores" = "1"; }; description = "Hadoop mapred-site.xml definition"; }; yarnSite = mkOption { default = {}; example = { "yarn.resourcemanager.ha.id" = "resourcemanager1"; }; description = "Hadoop yarn-site.xml definition"; }; package = mkOption { type = types.package; default = pkgs.hadoop; defaultText = "pkgs.hadoop"; example = literalExample "pkgs.hadoop"; description = '' ''; }; }; config = mkMerge [ (mkIf (builtins.hasAttr "yarn" config.users.users || builtins.hasAttr "hdfs" config.users.users) { users.groups.hadoop = { gid = config.ids.gids.hadoop; }; }) ]; }