98 lines
3.1 KiB
Nix
98 lines
3.1 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
let
|
|
cfg = config.services.envoy;
|
|
format = pkgs.formats.json { };
|
|
conf = format.generate "envoy.json" cfg.settings;
|
|
validateConfig = required: file:
|
|
pkgs.runCommand "validate-envoy-conf" { } ''
|
|
${cfg.package}/bin/envoy --log-level error --mode validate -c "${file}" ${lib.optionalString (!required) "|| true"}
|
|
cp "${file}" "$out"
|
|
'';
|
|
in
|
|
|
|
{
|
|
options.services.envoy = {
|
|
enable = lib.mkEnableOption "Envoy reverse proxy";
|
|
|
|
package = lib.mkPackageOption pkgs "envoy" { };
|
|
|
|
requireValidConfig = lib.mkOption {
|
|
type = lib.types.bool;
|
|
default = true;
|
|
description = ''
|
|
Whether a failure during config validation at build time is fatal.
|
|
When the config can't be checked during build time, for example when it includes
|
|
other files, disable this option.
|
|
'';
|
|
};
|
|
|
|
settings = lib.mkOption {
|
|
type = format.type;
|
|
default = { };
|
|
example = lib.literalExpression ''
|
|
{
|
|
admin = {
|
|
access_log_path = "/dev/null";
|
|
address = {
|
|
socket_address = {
|
|
protocol = "TCP";
|
|
address = "127.0.0.1";
|
|
port_value = 9901;
|
|
};
|
|
};
|
|
};
|
|
static_resources = {
|
|
listeners = [];
|
|
clusters = [];
|
|
};
|
|
}
|
|
'';
|
|
description = ''
|
|
Specify the configuration for Envoy in Nix.
|
|
'';
|
|
};
|
|
};
|
|
|
|
config = lib.mkIf cfg.enable {
|
|
environment.systemPackages = [ cfg.package ];
|
|
systemd.services.envoy = {
|
|
description = "Envoy reverse proxy";
|
|
after = [ "network-online.target" ];
|
|
requires = [ "network-online.target" ];
|
|
wantedBy = [ "multi-user.target" ];
|
|
serviceConfig = {
|
|
ExecStart = "${cfg.package}/bin/envoy -c ${validateConfig cfg.requireValidConfig conf}";
|
|
CacheDirectory = [ "envoy" ];
|
|
LogsDirectory = [ "envoy" ];
|
|
Restart = "no";
|
|
# Hardening
|
|
AmbientCapabilities = [ "CAP_NET_BIND_SERVICE" ];
|
|
CapabilityBoundingSet = [ "CAP_NET_BIND_SERVICE" ];
|
|
DeviceAllow = [ "" ];
|
|
DevicePolicy = "closed";
|
|
DynamicUser = true;
|
|
LockPersonality = true;
|
|
MemoryDenyWriteExecute = false; # at least wasmr needs WX permission
|
|
PrivateDevices = true;
|
|
PrivateUsers = false; # breaks CAP_NET_BIND_SERVICE
|
|
ProcSubset = "pid";
|
|
ProtectClock = true;
|
|
ProtectControlGroups = true;
|
|
ProtectHome = true;
|
|
ProtectHostname = true;
|
|
ProtectKernelLogs = true;
|
|
ProtectKernelModules = true;
|
|
ProtectKernelTunables = true;
|
|
ProtectProc = "ptraceable";
|
|
ProtectSystem = "strict";
|
|
RestrictAddressFamilies = [ "AF_UNIX" "AF_INET" "AF_INET6" "AF_NETLINK" "AF_XDP" ];
|
|
RestrictNamespaces = true;
|
|
RestrictRealtime = true;
|
|
SystemCallArchitectures = "native";
|
|
SystemCallErrorNumber = "EPERM";
|
|
SystemCallFilter = [ "@system-service" "~@privileged" "~@resources" ];
|
|
UMask = "0066";
|
|
};
|
|
};
|
|
};
|
|
}
|