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shadowsocks.nix
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shadowsocks.nix
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{ pkgs, ... }:
let
username = "shadowsocks";
home = "/var/lib/${username}";
configFile = "${home}/config.json";
port = 1024;
in
{
networking.firewall = {
allowedTCPPorts = [ port ];
allowedUDPPorts = [ port ];
};
programs.rust-motd.settings.service_status.ssserver = "ssserver";
systemd = {
services.ssserver = {
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
path = with pkgs; [
jq
shadowsocks-rust
];
script = ''
jq '.server_port = ${builtins.toString port}' ${configFile} > /tmp/config.json
exec ssserver -c /tmp/config.json
'';
serviceConfig = {
# https://github.com/shadowsocks/shadowsocks-rust/blob/master/debian/shadowsocks-rust-server%40.service
AmbientCapabilities = ["CAP_NET_BIND_SERVICE"];
CapabilityBoundingSet = ["CAP_NET_BIND_SERVICE"];
PrivateTmp = true;
User = username;
Group = username;
};
unitConfig.ConditionFileNotEmpty = configFile;
};
tmpfiles.rules = [
"d ${home} 1700 ${username} ${username}"
];
};
users = {
groups.${username} = {};
users.${username} = {
inherit home;
group = username;
isSystemUser = true;
};
};
}