From c73cb05a7eb88e1057d28ed78cba04abe69cdc70 Mon Sep 17 00:00:00 2001
From: Dobes Vandermeer <dobesv@gmail.com>
Date: Thu, 5 Apr 2018 23:10:14 -0700
Subject: [PATCH] Capture kernel logs in example fluentd.conf

I find it useful to have the kernel logs available for searching, for example that's the only place you can see processes killed when they hit memory limits.
---
 .../fluentd-es-configmap.yaml                    | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/cluster/addons/fluentd-elasticsearch/fluentd-es-configmap.yaml b/cluster/addons/fluentd-elasticsearch/fluentd-es-configmap.yaml
index 84cf79f3334..5b861084da0 100644
--- a/cluster/addons/fluentd-elasticsearch/fluentd-es-configmap.yaml
+++ b/cluster/addons/fluentd-elasticsearch/fluentd-es-configmap.yaml
@@ -367,6 +367,22 @@ data:
       read_from_head true
       tag node-problem-detector
     </source>
+    
+    <source>
+      @id kernel
+      @type systemd
+      filters [{ "_TRANSPORT": "kernel" }]
+      <storage>
+        @type local
+        persistent true
+      </storage>
+      <entry>
+        fields_strip_underscores true
+        fields_lowercase true
+      </entry>
+      read_from_head true
+      tag kernel
+    </source>
 
   forward.input.conf: |-
     # Takes the messages sent over TCP