Run the elk-configure-host privileged to be able to use sysctl to configure the host.

docker-compose/elk.yml

@@ -18,6 +18,7 @@ services:
         context: elk-configure-host
     container_name: ${CONTAINER_NAME_PREFIX}elk-configure-host
     network_mode: ${NETWORK_MODE}
+    privileged: true
 
   elk:
     image: elk