Merge topic 'fix-ubuntu-docker-default-base-image'

530aa2f3

 Update default base image to be based on latest Ubuntu LTS
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Sebastien Jourdain <sebastien.jourdain@kitware.com>
Merge-request: !591

Scripts/docker/ubuntu/Dockerfile

@@ -39,7 +39,7 @@
 #     "master", "v5.6.0", <branch-name>, etc...
 #
 
-ARG BASE_IMAGE=nvidia/opengl:1.0-glvnd-devel-ubuntu16.04
+ARG BASE_IMAGE=nvidia/opengl:1.0-glvnd-devel-ubuntu18.04
 FROM ${BASE_IMAGE}
 
 ARG RENDERING=egl