From 3dfc3533be71ae3b2a194179b0b0ee2a0996c548 Mon Sep 17 00:00:00 2001
From: jochen <jschoubben@gmail.com>
Date: Wed, 4 Nov 2026 20:28:37 +0100
Subject: [PATCH] distribution: the store's /v2/ checked over http through the
 front, beside the program's tool check (issue 1966)

A tool check alone is refused by the indexer's judge (ADR 0227 rule 8, ADR 0240 rule 2); the operator chose a check of
another kind on 2026-11-04.

Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig
---
 modules/distribution/internal/holder/holder_test.go |  5 +++++
 modules/distribution/module.json                    | 10 ++++++++++
 2 files changed, 15 insertions(+)

diff --git a/modules/distribution/internal/holder/holder_test.go b/modules/distribution/internal/holder/holder_test.go
index 43318fb4b..0dae70fa4 100644
--- a/modules/distribution/internal/holder/holder_test.go
+++ b/modules/distribution/internal/holder/holder_test.go
@@ -863,6 +863,11 @@ func TestTheHolderOfTheTwoImageSeats(t *testing.T) {
 				if ports, _ := r["ports"].([]any); len(ports) != 1 || ports[0] != "127.0.0.1:5001:5000" {
 					t.Errorf("the store's ports = %v, want the loopback only", r["ports"])
 				}
+				// The check of another kind beside the program's tool (ADR 0227 rule 8, ADR 0240 rule 2; the operator,
+				// 2026-11-04): the runtime asks the store's /v2/ through the program's front, its endpoint registry.
+				if h, _ := r["health"].(map[string]any); h["kind"] != "http" || h["endpoint"] != "registry" || h["path"] != "/v2/" {
+					t.Errorf("the store's health = %v, want http on the endpoint registry asking /v2/", r["health"])
+				}
 			case "program":
 				program = i
 				if h, _ := r["health"].(map[string]any); h["kind"] != "tool" || h["tool"] != "registry_health" {
diff --git a/modules/distribution/module.json b/modules/distribution/module.json
index c55d46e45..8a2b92481 100644
--- a/modules/distribution/module.json
+++ b/modules/distribution/module.json
@@ -197,6 +197,16 @@
       ],
       "env": {
         "REGISTRY_STORAGE_DELETE_ENABLED": "true"
+      },
+      "health": {
+        "kind": "http",
+        "endpoint": "registry",
+        "path": "/v2/",
+        "status": 200,
+        "interval": "60s",
+        "timeout": "10s",
+        "looks": 2,
+        "grace": "90s"
       }
     },
     {