- add missing types in module definitions - add missing 'defaultText' in module definitions - wrap example with 'literalExample' where necessary in module definitions
		
			
				
	
	
		
			135 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			135 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
{ config, lib, pkgs, ... }:
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with lib;
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let
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  cfg = config.services.hbase;
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  configFile = pkgs.writeText "hbase-site.xml" ''
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    <configuration>
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      <property>
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        <name>hbase.rootdir</name>
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        <value>file://${cfg.dataDir}/hbase</value>
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      </property>
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      <property>
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        <name>hbase.zookeeper.property.dataDir</name>
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        <value>${cfg.dataDir}/zookeeper</value>
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      </property>
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    </configuration>
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  '';
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  configDir = pkgs.runCommand "hbase-config-dir" {} ''
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    mkdir -p $out
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    cp ${cfg.package}/conf/* $out/
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    rm $out/hbase-site.xml
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    ln -s ${configFile} $out/hbase-site.xml
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  '' ;
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in {
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  ###### interface
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  options = {
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    services.hbase = {
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      enable = mkOption {
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        type = types.bool;
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        default = false;
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        description = ''
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          Whether to run HBase.
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        '';
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      };
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      package = mkOption {
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        type = types.package;
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        default = pkgs.hbase;
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        defaultText = "pkgs.hbase";
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        example = literalExample "pkgs.hbase";
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        description = ''
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          HBase package to use.
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        '';
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      };
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      user = mkOption {
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        type = types.string;
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        default = "hbase";
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        description = ''
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          User account under which HBase runs.
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        '';
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      };
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      group = mkOption {
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        type = types.string;
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        default = "hbase";
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        description = ''
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          Group account under which HBase runs.
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        '';
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      };
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      dataDir = mkOption {
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        type = types.path;
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        default = "/var/lib/hbase";
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        description = ''
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          Specifies location of HBase database files. This location should be
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          writable and readable for the user the HBase service runs as
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          (hbase by default).
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        '';
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      };
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      logDir = mkOption {
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        type = types.path;
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        default = "/var/log/hbase";
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        description = ''
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          Specifies the location of HBase log files.
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        '';
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      };
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    };
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  };
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  ###### implementation
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  config = mkIf config.services.hbase.enable {
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    systemd.services.hbase = {
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      description = "HBase Server";
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      wantedBy = [ "multi-user.target" ];
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      environment = {
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        JAVA_HOME = "${pkgs.jre}";
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        HBASE_LOG_DIR = cfg.logDir;
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      };
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      preStart =
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        ''
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        mkdir -p ${cfg.dataDir};
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        mkdir -p ${cfg.logDir};
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        if [ "$(id -u)" = 0 ]; then
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          chown ${cfg.user}:${cfg.group} ${cfg.dataDir}
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          chown ${cfg.user}:${cfg.group} ${cfg.logDir}
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        fi
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        '';
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      serviceConfig = {
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        PermissionsStartOnly = true;
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        User = cfg.user;
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        Group = cfg.group;
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        ExecStart = "${cfg.package}/bin/hbase --config ${configDir} master start";
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      };
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    };
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    users.extraUsers.hbase = {
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      description = "HBase Server user";
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      group = "hbase";
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      uid = config.ids.uids.hbase;
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    };
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    users.extraGroups.hbase.gid = config.ids.gids.hbase;
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  };
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}
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