From 990a3de46b379fc2e4290ae2086c6ef2c8e18598 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Mierzwa?= <l.mierzwa@gmail.com>
Date: Tue, 29 Oct 2019 21:37:40 +0000
Subject: [PATCH] chore(backend): log a warning when alertmanager 0.17 or 0.18
 is detected

Fixes #1099
---
 internal/alertmanager/models.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/internal/alertmanager/models.go b/internal/alertmanager/models.go
index 076aba691..f435cfcb4 100644
--- a/internal/alertmanager/models.go
+++ b/internal/alertmanager/models.go
@@ -81,6 +81,10 @@ func (am *Alertmanager) probeVersion() string {
 		return fakeVersion
 	}
 
+	if version == "0.17.0" || version == "0.18.0" {
+		log.Warningf("Alertmanager %s might return incomplete list of alert groups in the API, please upgrade to >=0.19.0, see https://github.com/prymitive/karma/issues/812", version)
+	}
+
 	return version
 }