From 83c65007f8245bc0dc2afc4960b520d743216d72 Mon Sep 17 00:00:00 2001
From: Adrian Perez <adrian@adrianperez.org>
Date: Sat, 1 Nov 2025 16:39:03 -0700
Subject: [PATCH] nixos/grafana: disable preinstall when `declarativePlugins`
 is used

Closes: #445194
---
 nixos/modules/services/monitoring/grafana.nix | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/nixos/modules/services/monitoring/grafana.nix b/nixos/modules/services/monitoring/grafana.nix
index 46da20bec8ad..40325bfddda3 100644
--- a/nixos/modules/services/monitoring/grafana.nix
+++ b/nixos/modules/services/monitoring/grafana.nix
@@ -1300,6 +1300,18 @@ in
               type = types.bool;
             };
           };
+
+          plugins = {
+            preinstall_disabled = mkOption {
+              description = ''
+                When set to `true`, disables the Background Plugin Installer, which runs before Grafana starts.
+                This component causes issues with `declarativePlugins` and is disabled by default if those are used.
+              '';
+              default = cfg.declarativePlugins != null;
+              defaultText = literalExpression "cfg.declarativePlugins != null";
+              type = types.bool;
+            };
+          };
         };
       };
     };