nixpkgs/nixos/modules/services/web-servers/traefik.nix

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2017-09-27 16:30:49 +00:00
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.traefik;
configFile =
if (cfg.configFile == null) then
(pkgs.runCommand "config.toml" {
buildInputs = [ pkgs.remarshal ];
} ''
remarshal -if json -of toml \
< ${pkgs.writeText "config.json" (builtins.toJSON cfg.configOptions)} \
> $out
'')
else
cfg.configFile;
in {
options.services.traefik = {
enable = mkEnableOption "Traefik web server";
configFile = mkOption {
default = null;
example = /path/to/config.toml;
type = types.nullOr types.path;
description = "Verbatim traefik.toml to use";
};
configOptions = mkOption {
description = ''
Config for Traefik.
'';
type = types.attrs;
example = {
defaultEntrypoints = [ "http" ];
web = {
address = ":8080";
};
entryPoints = {
http = {
address = ":80";
};
};
file = {};
frontends = {
frontend1 = {
backend = "backend1";
routes.test_1 = {
rule = "Host:localhost";
};
};
};
backends = {
backend1 = {
servers.server1 = {
url = "http://localhost:8000";
};
};
};
};
};
dataDir = mkOption {
default = "/var/lib/traefik";
type = types.path;
description = ''
Location for any persistent data traefik creates, ie. acme
'';
};
package = mkOption {
default = pkgs.traefik;
defaultText = "pkgs.traefik";
type = types.package;
description = "Traefik package to use.";
};
};
config = mkIf cfg.enable {
systemd.services.traefik = {
description = "Traefik web server";
after = [ "network-online.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
ExecStart = ''${cfg.package.bin}/bin/traefik --configfile=${configFile}'';
Type = "simple";
User = "traefik";
Group = "traefik";
Restart = "on-failure";
StartLimitInterval = 86400;
StartLimitBurst = 5;
AmbientCapabilities = "cap_net_bind_service";
CapabilityBoundingSet = "cap_net_bind_service";
NoNewPrivileges = true;
LimitNPROC = 64;
LimitNOFILE = 1048576;
PrivateTmp = true;
PrivateDevices = true;
ProtectHome = true;
ProtectSystem = "full";
ReadWriteDirectories = cfg.dataDir;
};
};
users.extraUsers.traefik = {
group = "traefik";
home = cfg.dataDir;
createHome = true;
};
users.extraGroups.traefik = {};
};
}