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Server/caddy: wait for tailscale ip before starting

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Toast 2025-12-13 15:24:18 +01:00
parent e863aea052
commit d8f2812003
1 changed files with 14 additions and 0 deletions
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14
roles/server/caddy.nix
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@ -11,6 +11,19 @@
file_server browse
root * /srv/dl/
'';
script = pkgs.writeShellApplication {
name = "wait-for-tailscale-ip";
runtimeInputs = [pkgs.iproute2];
text = ''
# Based on https://github.com/tailscale/tailscale/issues/11504#issuecomment-2113331262
echo Waiting for tailscale0 to get an IP adress..
for i in {1..300}; do
if ip addr show dev tailscale0 | grep -q 'inet '; then break; fi
echo "Waiting $i/240 seconds"
sleep 1
done
'';
};
in {
services.caddy = {
enable = true;
@ -71,6 +84,7 @@ in {
# in too little time
services.caddy.serviceConfig.RestartSec = lib.mkForce "120s";
services.caddy.unitConfig.StartLimitBurst = lib.mkForce "infinity";
services.caddy.preStart = "${script}/bin/wait-for-tailscale-ip";
};
programs.rust-motd.settings.service_status.Caddy = "caddy";
networking.firewall.allowedTCPPorts = [443 80];