From f8f3eb7a480827ac1995a203c13dd96f6951ee35 Mon Sep 17 00:00:00 2001
From: IndeedNotJames <git@indeednotjames.com>
Date: Thu, 30 Mar 2023 14:35:53 +0200
Subject: [PATCH] nixos/loki: add `package` option

---
 nixos/modules/services/monitoring/loki.nix | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/nixos/modules/services/monitoring/loki.nix b/nixos/modules/services/monitoring/loki.nix
index 11bb8497c9bb..f3b97e9151ea 100644
--- a/nixos/modules/services/monitoring/loki.nix
+++ b/nixos/modules/services/monitoring/loki.nix
@@ -22,6 +22,8 @@ in {
       '';
     };
 
+    package = lib.mkPackageOptionMD pkgs "grafana-loki" { };
+
     group = mkOption {
       type = types.str;
       default = "loki";
@@ -78,7 +80,7 @@ in {
       '';
     }];
 
-    environment.systemPackages = [ pkgs.grafana-loki ]; # logcli
+    environment.systemPackages = [ cfg.package ]; # logcli
 
     users.groups.${cfg.group} = { };
     users.users.${cfg.user} = {
@@ -99,7 +101,7 @@ in {
                else cfg.configFile;
       in
       {
-        ExecStart = "${pkgs.grafana-loki}/bin/loki --config.file=${conf} ${escapeShellArgs cfg.extraFlags}";
+        ExecStart = "${cfg.package}/bin/loki --config.file=${conf} ${escapeShellArgs cfg.extraFlags}";
         User = cfg.user;
         Restart = "always";
         PrivateTmp = true;