# LXC container
| ${container_count}= | ${1}
| ${container_engine}= | Docker
-| ${container_image}= | ubuntu
+| ${container_image}= | ubuntu:xenial-20180412
+| ${container_install_dkms}= | ${FALSE}
+| ${container_chain_topology}= | chain
# CPU settings
| ${system_cpus}= | ${1}
| ${vpp_cpus}= | ${5}