From 2dca2caca30bd0005b5a3f5b8daaa4cb1de98644 Mon Sep 17 00:00:00 2001
From: Nicolas Jeannerod <niols@build01.tweag.io>
Date: Tue, 10 Sep 2024 12:41:53 +0000
Subject: [PATCH] Wait until Garage is up by polling port 3900

---
 garage.nix | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/garage.nix b/garage.nix
index bd2c38e..b58738d 100644
--- a/garage.nix
+++ b/garage.nix
@@ -172,8 +172,10 @@ in {
       path = [ cfg.package pkgs.perl pkgs.awscli ];
       script = ''
         set -xeuo pipefail
-        # give garage time to start up
-        sleep 10
+
+        # Give garage time to start up by waiting until somethings speaks HTTP
+        # behind localhost:3900.
+        until curl -sio /dev/null http://localhost:3900/; do sleep 1; done
 
         # XXX: this is very sensitive to being a single instance
         # (doing the bare minimum to get garage up and running)