nix-config/hosts/lkk-nix-1/services/tailscale.nix

43 lines
1.1 KiB
Nix
Raw Normal View History

2024-05-15 09:25:27 +00:00
{
config,
pkgs,
...
}: {
services.tailscale = {
enable = true;
useRoutingFeatures = "both";
};
networking.firewall = {
trustedInterfaces = ["tailscale0"];
};
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";
EnvironmentFile = "${config.age.secrets.tailscale-key.path}";
};
# have the job run this shell script
script = with pkgs; ''
# wait for tailscaled to settle
sleep 2
# check if we are already authenticated to tailscale
status="$(${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 --advertise-exit-node --authkey $TAILSCALE_KEY
'';
};
}