45 lines
1.5 KiB
Nix
45 lines
1.5 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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cfg = config.ragon.services.tailscale;
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in
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{
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options.ragon.services.tailscale.enable = lib.mkEnableOption "Enables tailscale";
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config = lib.mkIf cfg.enable {
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# enable the tailscale service
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services.tailscale.enable = true;
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ragon.agenix.secrets.tailscaleKey = {};
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networking.firewall = {
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# always allow traffic from your Tailscale network
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trustedInterfaces = [ "tailscale0" ];
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# allow the Tailscale UDP port through the firewall
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allowedUDPPorts = [ config.services.tailscale.port ];
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};
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systemd.services.tailscale-autoconnect = {
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description = "Automatic connection to Tailscale";
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# make sure tailscale is running before trying to connect to tailscale
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after = [ "network-pre.target" "tailscale.service" ];
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wants = [ "network-pre.target" "tailscale.service" ];
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wantedBy = [ "multi-user.target" ];
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# set this service as a oneshot job
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serviceConfig.Type = "oneshot";
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# have the job run this shell script
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script = with pkgs; ''
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# wait for tailscaled to settle
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sleep 2
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# check if we are already authenticated to tailscale
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status="$(${tailscale}/bin/tailscale status -json | ${jq}/bin/jq -r .BackendState)"
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if [ $status = "Running" ]; then # if so, then do nothing
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exit 0
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fi
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key=$(<${config.age.secrets.tailscaleKey.path})
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# otherwise authenticate with tailscale
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${tailscale}/bin/tailscale up -authkey $key
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'';
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};
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};
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}
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