fix(cadvisor): add /dev/kmsg device for oom events

Also include priviledged flag per cadvisor recommendations.

Closes #215.
Closes #232.

Signed-off-by: Amir Zarrinkafsh <nightah@me.com>

docker-compose.exporters.yml

@@ -22,6 +22,9 @@ services:
   cadvisor:
     image: gcr.io/cadvisor/cadvisor:v0.40.0
     container_name: cadvisor
+    privileged: true
+    devices:
+      - /dev/kmsg:/dev/kmsg
     volumes:
       - /:/rootfs:ro
       - /var/run:/var/run:ro

docker-compose.yml

@@ -70,6 +70,9 @@ services:
   cadvisor:
     image: gcr.io/cadvisor/cadvisor:v0.40.0
     container_name: cadvisor
+    privileged: true
+    devices:
+      - /dev/kmsg:/dev/kmsg
     volumes:
       - /:/rootfs:ro
       - /var/run:/var/run:ro