From 6a9bcd9b8c5685e51e713e58ebdc74c105a00d1d Mon Sep 17 00:00:00 2001
From: Alexander <alexander0derevianko@gmail.com>
Date: Sat, 25 Jul 2026 12:44:14 +0200
Subject: [PATCH] Add readiness probe to devenv

---
 devenv.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/devenv.nix b/devenv.nix
index 25c49a2..075e3f4 100644
--- a/devenv.nix
+++ b/devenv.nix
@@ -80,6 +80,11 @@ in
       ${config.outputs.server}/bin/server -config "$DEVENV_RUNTIME/metadata-config.yaml"
     '';
     after = [ "devenv:processes:postgres" ];
+    # Probes the standard gRPC Health Checking Protocol (cmd/server/main.go
+    # registers google.golang.org/grpc/health + reflection). Port matches
+    # server.port in the YAML above. SERVING means the gRPC server is
+    # accepting connections; postgres readiness is already gated by `after`.
+    ready.exec = "grpcurl -plaintext -max-time 2 localhost:50053 grpc.health.v1.Health/Check | grep -q SERVING";
   };
 
   outputs = {