snowflake/hosts/tsuru/services/tailscale.nix

53 lines
1.4 KiB
Nix

{
config,
lib,
pkgs,
...
}:
{
sops.secrets.tsauth-tsuru = {
sopsFile = ../../../secrets/tailscale/secrets.yaml;
};
environment.systemPackages = [
pkgs.jq
pkgs.tailscale
];
services.tailscale = {
useRoutingFeatures = lib.mkDefault "client";
};
networking.firewall.allowedUDPPorts = [ config.services.tailscale.port ];
networking.firewall.trustedInterfaces = [ config.services.tailscale.interfaceName ];
systemd.services.tailscale-autoconnect = {
description = "Automatic connection to Tailscale";
# make sure tailscale is running before trying to connect to tailscale
after = [
"network-pre.target"
"tailscale.service"
];
wants = [
"network-pre.target"
"tailscale.service"
];
wantedBy = [ "multi-user.target" ];
# set this service as a oneshot job
serviceConfig.Type = "oneshot";
# have the job run this shell script
script = with pkgs; ''
# wait for tailscaled to settle
sleep 2
# check if we are already authenticated to tailscale
status="$(${tailscale}/bin/tailscale status -json | ${jq}/bin/jq -r .BackendState)"
if [ $status = "Running" ]; then # if so, then do nothing
exit 0
fi
# otherwise authenticate with tailscale
${tailscale}/bin/tailscale up -authkey file:${config.sops.secrets.tsauth-tsuru.path} --exit-node=100.104.42.96 --exit-node-allow-lan-access=true --accept-dns=false
'';
};
}