Docker based on absent nvidia image tag

[oleg-milantiev]

[internal] load metadata for docker.io/nvidia/cuda:10.2-cudnn7-runtime-ubuntu18.04:

---

Dockerfile:2

1 | # enables cuda support in docker
2 | >>> FROM nvidia/cuda:10.2-cudnn7-runtime-ubuntu18.04
3 |
4 | # install python 3.6, pip and requirements for opencv-python

ERROR: failed to solve: nvidia/cuda:10.2-cudnn7-runtime-ubuntu18.04: failed to resolve source metadata for docker.io/nvidia/cuda:10.2-cudnn7-runtime-ubuntu18.04: docker.io/nvidia/cuda:10.2-cudnn7-runtime-ubuntu18.04: not found