From 52dbfc7594938d723b8ea0e8af24f2f14f47506d Mon Sep 17 00:00:00 2001
From: Mike Bryant <m@ocado.com>
Date: Fri, 10 Mar 2017 21:34:47 +0000
Subject: [PATCH] Add warning about Grafana HA

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index f441329b..d1becdd7 100644
--- a/README.md
+++ b/README.md
@@ -82,6 +82,9 @@ This allows managing dashboards via `git` etc. and easily deploying them via CD
 In the future, a separate Grafana operator will support gathering dashboards from multiple
 ConfigMaps based on label selection.
 
+WARNING: If you deploy multiple Grafana instances for HA, you must use session affinity.
+Otherwise if pods restart the prometheus datasource ID can get out of sync between the pods, breaking the UI
+
 ## Roadmap
 
 * Grafana Operator that dynamically discovers and deploys dashboards from ConfigMaps
-- 
GitLab