stockholm/krebs/3modules/tinc_graphs.nix
2023-06-21 14:47:04 +02:00

158 lines
4.6 KiB
Nix

{ config, lib, pkgs, ... }:
with import ../../lib/pure.nix { inherit lib; };
let
cfg = config.krebs.tinc_graphs;
internal_dir = "${cfg.workingDir}/internal";
external_dir = "${cfg.workingDir}/external";
out = {
options.krebs.tinc_graphs = api;
config = lib.mkIf cfg.enable imp ;
};
api = {
enable = mkEnableOption "tinc graphs";
geodbPath = mkOption {
type = types.str;
description = "Path to geocitydb, defaults to geolite-legacy";
default = "${pkgs.geolite-legacy}/share/GeoIP/GeoIPCity.dat";
};
hostsPath = mkOption {
type = types.str;
description = "Path to Hosts directory";
default = "${config.krebs.tinc.retiolum.hostsPackage}";
defaultText = "\${config.krebs.tinc.retiolum.hostsPackage}";
};
network = mkOption {
type = types.str;
description = "Tinc Network to use";
default = "retiolum";
};
nginx = {
enable = mkEnableOption "enable tinc_graphs to be served with nginx";
anonymous = mkOption {
type = types.attrsOf types.unspecified;
default = {};
description = ''
nginx virtualHost options to be merged into the anonymous graphs
vhost entry.
'';
};
anonymous-domain = mkOption {
type = types.str;
description = ''
external domainname to be used for anonymous graphs
it will be used if you want to enable ACME
'';
default = "graph.krebsco.de";
};
complete = mkOption {
type = types.attrsOf types.unspecified;
description = ''
nginx virtualHost options to be merged into the complete graphs
vhost entry.
'';
};
};
workingDir = mkOption {
type = types.str;
description = ''
Path to working dir, will create interal and external/.
Defaults to the new users home dir which defaults to
/var/cache/tinc_graphs'';
default = config.users.extraUsers.tinc_graphs.home;
defaultText = "<literal>\${config.users.extraUsers.tinc_graphs.home}</literal>";
};
timerConfig = mkOption {
type = with types; attrsOf str;
default = {
OnCalendar = "*:0/15";
};
};
};
imp = {
environment.systemPackages = [ pkgs.tinc_graphs ];
systemd.timers.tinc_graphs = {
description = "Build Tinc Graphs via via timer";
wantedBy = [ "timers.target" ];
timerConfig = cfg.timerConfig;
};
systemd.services.tinc_graphs = {
description = "Build Tinc Graphs";
environment = {
EXTERNAL_FOLDER = external_dir;
INTERNAL_FOLDER = internal_dir;
GEODB = cfg.geodbPath;
TINC_HOSTPATH = cfg.hostsPath;
TINC_NETWORK = cfg.network;
};
restartIfChanged = true;
serviceConfig = {
Type = "simple";
TimeoutSec = 300; # we will wait 5 minutes, kill otherwise
restart = "always";
ExecStartPre = pkgs.writeDash "tinc_graphs-init" ''
mkdir -p "${internal_dir}" "${external_dir}"
if ! test -e "${cfg.workingDir}/internal/index.html"; then
cp -fr "$(${pkgs.tinc_graphs}/bin/tincstats-static-dir)/internal/." "${internal_dir}"
fi
if ! test -e "${cfg.workingDir}/external/index.html"; then
cp -fr "$(${pkgs.tinc_graphs}/bin/tincstats-static-dir)/external/." "${external_dir}"
fi
'';
ExecStart = ''${pkgs.tinc_graphs}/bin/all-the-graphs "${cfg.network}"'';
ExecStartPost = pkgs.writeDash "tinc_graphs-post" ''
# TODO: this may break if workingDir is set to something stupid
# this is needed because homedir is created with 700
chmod 755 "${cfg.workingDir}"
'';
PrivateTmp = "yes";
User = "root"; # tinc cannot be queried as user,
# seems to be a tinc-pre issue
};
};
users.extraUsers.tinc_graphs = {
uid = genid_uint31 "tinc_graphs";
group = "tinc_graphs";
home = "/var/spool/tinc_graphs";
isSystemUser = true;
};
users.groups.tinc_graphs = {};
services.nginx = mkIf cfg.nginx.enable {
enable = mkDefault true;
virtualHosts = {
tinc_graphs_complete = mkMerge [ cfg.nginx.complete {
locations = {
"/".extraConfig = "autoindex on;";
"/".root = internal_dir;
};
}];
"${cfg.nginx.anonymous-domain}" = mkMerge [ cfg.nginx.anonymous {
locations = {
"/".extraConfig = "autoindex on;";
"/".root = external_dir;
};
}];
};
};
};
in
out