From 406f8905bae2c8cc429e5d8bc842ec7dc0f1c44f Mon Sep 17 00:00:00 2001
From: Oliver Charles <ollie@ocharles.org.uk>
Date: Fri, 17 Nov 2017 10:16:21 +0000
Subject: [PATCH] nixos/prometheus: add external_labels option

---
 .../modules/services/monitoring/prometheus/default.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/nixos/modules/services/monitoring/prometheus/default.nix b/nixos/modules/services/monitoring/prometheus/default.nix
index c12b5f35dea3..1ae2245f10e7 100644
--- a/nixos/modules/services/monitoring/prometheus/default.nix
+++ b/nixos/modules/services/monitoring/prometheus/default.nix
@@ -66,6 +66,16 @@ let
           How frequently to evaluate rules by default.
         '';
       };
+
+      external_labels = mkOption {
+        type = types.attrsOf types.str;
+        description = ''
+          The labels to add to any time series or alerts when
+          communicating with external systems (federation, remote
+          storage, Alertmanager).
+        '';
+        default = {};
+      };
     };
   };