From e68a3cf21f4132337c62fd335ff703fa7ac2a27a Mon Sep 17 00:00:00 2001
From: Fabian Reinartz <fab.reinartz@gmail.com>
Date: Tue, 22 Nov 2016 15:43:07 +0100
Subject: [PATCH] rules: update annotations on each iteration

---
 rules/alerting.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/rules/alerting.go b/rules/alerting.go
index 7b7ba9e256..6194c4afac 100644
--- a/rules/alerting.go
+++ b/rules/alerting.go
@@ -218,8 +218,11 @@ func (r *AlertingRule) Eval(ctx context.Context, ts model.Time, engine *promql.E
 		fp := smpl.Metric.Fingerprint()
 		resultFPs[fp] = struct{}{}
 
+		// Check whether we already have alerting state for the identifying label set.
+		// Update the last value and annotations if so, create a new alert entry otherwise.
 		if alert, ok := r.active[fp]; ok && alert.State != StateInactive {
 			alert.Value = smpl.Value
+			alert.Annotations = annotations
 			continue
 		}