Dockerfile base image

[tarasmandryk]

https://github.com/huaweicloud/ModelArts-Lab/tree/master/docs/custom_image/custom_base

Base images from Dockerfiles are not available.

Examples of missing Docker images are below: dls.io/dls/ubuntu_base:16.04-latest dls.io/dls/ubuntu_base:18.04-latest dls.io/dls/custom-base-gpu-cuda10.1-ubuntu18.04-x86:1.0-latest dls.io/dls/custom-base-gpu-cuda10.0-ubuntu18.04-x86:1.0-latest dls.io/dls/custom-base-gpu-cuda10.2-ubuntu18.04-x86:1.0-latest