init

modules/tailscale.nix

@@ -0,0 +1,53 @@
+{ config, lib, pkgs, ...}:
+{
+  config = {
+    environment.systemPackages = [
+      pkgs.tailscale
+      pkgs.jq
+    ];
+
+    systemd.services.tailscaled = {
+      enable = true;
+      description = "Tailscale node agent";
+      after = [ "network-pre.target" ];
+      wants = [ "network-pre.target" ];
+      serviceConfig = {
+        Type = "simple";
+        ExecStart = "${pkgs.tailscale}/bin/tailscaled --statedir /var/lib/tailscale";
+        Restart = "on-failure";
+        RestartSec = 5;
+        LiminNOFILE = "infinity";
+      };
+      wantedBy = [ "multi-user.target" ];
+    };
+    
+
+    systemd.services.tailscale-autoconnect = {
+      enable = false;
+      description = "Automatic connection to Tailscale";
+
+      # make sure tailscale is running before trying to connect to tailscale
+      after = [ "network-pre.target" "tailscaled.service" ];
+      wants = [ "network-pre.target" "tailscaled.service" ];
+      wantedBy = [ "multi-user.target" ];
+
+      # set this service as a oneshot job
+      serviceConfig.Type = "oneshot";
+
+      # have the job run this shell script
+      script = with pkgs; ''
+        # wait for tailscaled to settle
+        sleep 2
+
+        # check if we are already authenticated to tailscale
+        status="$(${pkgs.tailscale}/bin/tailscale status -json | ${pkgs.jq}/bin/jq -r .BackendState)"
+        if [ $status = "Running" ]; then # if so, then do nothing
+          exit 0
+        fi
+
+        # otherwise authenticate with tailscale
+        ${pkgs.tailscale}/bin/tailscale up -authkey tskey-examplekeyhere
+      '';
+    };
+  };
+}