nixpkgs/nixos/modules/services/cluster/hadoop/conf.nix
2018-06-29 23:14:02 -04:00

32 lines
884 B
Nix

{ hadoop, pkgs }:
let
propertyXml = name: value: ''
<property>
<name>${name}</name>
<value>${builtins.toString value}</value>
</property>
'';
siteXml = fileName: properties: pkgs.writeTextDir fileName ''
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- generated by NixOS -->
<configuration>
${builtins.concatStringsSep "\n" (pkgs.lib.mapAttrsToList propertyXml properties)}
</configuration>
'';
userFunctions = ''
hadoop_verify_logdir() {
echo Skipping verification of log directory
}
'';
in
pkgs.buildEnv {
name = "hadoop-conf";
paths = [
(siteXml "core-site.xml" hadoop.coreSite)
(siteXml "hdfs-site.xml" hadoop.hdfsSite)
(siteXml "mapred-site.xml" hadoop.mapredSite)
(siteXml "yarn-site.xml" hadoop.yarnSite)
(pkgs.writeTextDir "hadoop-user-functions.sh" userFunctions)
];
}