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{ config, lib, options, pkgs, ... }:
with lib;
let
cfg = config.services.lighttpd.collectd;
opt = options.services.lighttpd.collectd;
collectionConf = pkgs.writeText "collection.conf" ''
datadir: "${config.services.collectd.dataDir}"
libdir: "${config.services.collectd.package}/lib/collectd"
'';
defaultCollectionCgi = config.services.collectd.package.overrideDerivation(old: {
name = "collection.cgi";
dontConfigure = true;
buildPhase = "true";
installPhase = ''
substituteInPlace contrib/collection.cgi --replace '"/etc/collection.conf"' '$ENV{COLLECTION_CONF}'
cp contrib/collection.cgi $out
'';
});
in
{
options.services.lighttpd.collectd = {
enable = mkEnableOption "collectd subservice accessible at http://yourserver/collectd";
collectionCgi = mkOption {
type = types.path;
default = defaultCollectionCgi;
defaultText = literalMD ''
`config.${options.services.collectd.package}` configured for lighttpd
'';
description = ''
Path to collection.cgi script from (collectd sources)/contrib/collection.cgi
This option allows to use a customized version
'';
};
};
config = mkIf cfg.enable {
services.lighttpd.enableModules = [ "mod_cgi" "mod_alias" "mod_setenv" ];
services.lighttpd.extraConfig = ''
$HTTP["url"] =~ "^/collectd" {
cgi.assign = (
".cgi" => "${pkgs.perl}/bin/perl"
)
alias.url = (
"/collectd" => "${cfg.collectionCgi}"
)
setenv.add-environment = (
"PERL5LIB" => "${with pkgs.perlPackages; makePerlPath [ CGI HTMLParser URI pkgs.rrdtool ]}",
"COLLECTION_CONF" => "${collectionConf}"
)
}
'';
};
}
|