From 6e45456fece5ce0cbf8d93fd1def4fa446070bf5 Mon Sep 17 00:00:00 2001
From: Florian Klink <flokli@flokli.de>
Date: Wed, 2 Apr 2025 17:06:13 +0100
Subject: [PATCH] fix(ops/machines/snix-cache): support old /nar/tvix-castore
 URLs

Nix clients still might have old .narinfo files cached, containing old
NAR URLs. Send a redirect to the new URL.

Fixes: #103
Change-Id: Ie3b77e4fdc4be0f982e023f2a2acd3f9f0257f9b
Reviewed-on: https://cl.snix.dev/c/snix/+/30291
Autosubmit: Florian Klink <flokli@flokli.de>
Tested-by: besadii
Reviewed-by: edef <edef@edef.eu>
---
 ops/machines/snix-cache/nar-bridge.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ops/machines/snix-cache/nar-bridge.nix b/ops/machines/snix-cache/nar-bridge.nix
index 37f714b96..d8e8ec383 100644
--- a/ops/machines/snix-cache/nar-bridge.nix
+++ b/ops/machines/snix-cache/nar-bridge.nix
@@ -41,6 +41,11 @@
           proxy_cache_use_stale error timeout updating;
         '';
       };
+      # Rewrite old nar/tvix-castore/…?narsize=… requests to the new URL
+      # Clients keep these paths in their narinfo cache annoyingly long.
+      locations."/nar/tvix-castore".extraConfig = ''
+        rewrite ^/nar/tvix-castore/(.*)$ /nar/snix-castore/$1 redirect;
+      '';
     };
 
     # use more cores for compression