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.

Capture kernel logs in example fluentd.conf
c73cb05a · Dobes Vandermeer · GitHub · 07d1a8cb · c73cb05a
Unverified Commit c73cb05a authored Apr 05, 2018 by Dobes Vandermeer Committed by GitHub Apr 05, 2018
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fluentd-es-configmap.yaml ...er/addons/fluentd-elasticsearch/fluentd-es-configmap.yaml +16 -0

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--- 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