Part 1: install and start the latest NVIDIA drivers for your GPU card

1. Open up a terminal on the CentOS VM
2. Run as root (sudo su)
3. Install ls hardware which misses in the standard centOS 7.5 image:
   
1. yum install lshw
   
4. Identify graphic car model and driver:
   
1. lshw -numeric -C display
   Mark the current drive name (let us say it is <drivername>)
   Now you will have the information needed to find the proper driver for your card when using CentOS on the NVIDIA website (nvidia.com).
5. Download that driver which comes as an installation file named NVIDIA-Linux-x86-… (more precise: download it to your local machine, upload it to the fileshare, and copy it to a disk on your vm)
   To install the driver you will need to compile this download and install it in place of the current driver.
6. Before that there is some preparation necessary on your VM
1. yum groupinstall “Development Tools”
   
2. yum install kernel-devel epel-release
   
7. Make a back-up copy of the existing GRUB file (/etc/default/grub)
8. Edit the GRUB file and set  the parameter <drivername>.mode to 0
9. Remove the current driver file (still as root) by running the following 2 commands:
   
1. grub2-mkconfig -o /boot/grub2/grub.cfg
   
2. grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg
   
10. Reboot the VM. When restarted the present driver should not appear if you list the hardware (see above)
11. Stop the X server (still as root):
    
1. systemctl isolate multi-user .target
   
12. Install the NVIDIA driver (still as root):
    
1. bash NVIDIA-Linux-x86-*
   probably there will be some questions that you will need to answer. Almost all defaults can be used. However, do not agree to automatically update your driver! (there is no direct internet connection to nvidia.com, so that would generate errors).
13. If needed you can now run nvidia-settings and configure your GPU card.
14. Then a final reboot (to restart Xorg and assure everything will work after the next restart.

Part 2 install nvidia-docker packages

1. Still as root
   
1. yum install -y nvidia-docker2
   
2. Sync the docker daemon
   
1. pkill -SIGHUP dockerd
   
   Remarks:
2. Having no internet connection from the linux vm makes the process a lot more cumbersome. If there are no data yet, you can ask your agent to open up internet for the workspace temporarily.
   
3. I have noticed that the nvidia-docker2 is not in the present yum repository.  The workaround:
   
1. on a system with internet:
   
1. LOCALDIR=/var/lib/nvidia-docker-repo
   
2. mkdir -p $LOCALDIR && cd $LOCALDIR
   
3. mkdir -p /var/lib/nvidia-docker-repo/libnvidia-container
   
4. mkdir -p /var/lib/nvidia-docker-repo/nvidia-container-runtime
   
5. mkdir -p /var/lib/nvidia-docker-repo/nvidia-docker
   
6. wget https://api.github.com/repos/nvidia/libnvidia-container/tarball/gh-pages -O - | tar -zx --strip-components=1 -C ./libnvidia-container
   
7. wget https://api.github.com/repos/nvidia/nvidia-container-runtime/tarball/gh-pages -O - | tar -zx --strip-components=1 -C ./nvidia-container-runtime
   
8. wget https://api.github.com/repos/nvidia/libnvidia-container/tarball/gh-pages -O - | tar -zx --strip-components=1 -C ./nvidia-docker
   
   Change /var/lib/nvidia-docker-repo/nvidia-docker/centos7/nvidia-docker.repo like this:
   
   [libnvidia-container]
9. name=libnvidia-container
   
10. baseurl=file:///var/lib/nvidia-docker-repo/libnvidia-container/centos7/$basearch
    
11. repo_gpgcheck=1
    
12. gpgcheck=0
    
13. enabled=1
    
14. gpgkey=file:///var/lib/nvidia-docker-repo/libnvidia-container/gpgkey
    
15. sslverify=1
    
16. sslcacert=/etc/pki/tls/certs/ca-bundle.crt
    
    [nvidia-container-runtime]
17. name=nvidia-container-runtime
    
18. baseurl=file:///var/lib/nvidia-docker-repo/nvidia-container-runtime/centos7/$basearch
    
19. repo_gpgcheck=1
    
20. gpgcheck=0
    
21. enabled=1
    
22. gpgkey=file:///var/lib/nvidia-docker-repo/nvidia-container-runtime/gpgkey
    
23. sslverify=1
    
24. sslcacert=/etc/pki/tls/certs/ca-bundle.crt
    
    [nvidia-docker]
25. name=nvidia-docker
    
26. baseurl=file:///var/lib/nvidia-docker-repo/nvidia-docker/centos7/$basearch
    
27. repo_gpgcheck=1
    
28. gpgcheck=0
    
29. enabled=1
    
30. gpgkey=file:///var/lib/nvidia-docker-repo/nvidia-docker/gpgkey
    
31. sslverify=1
    
32. sslcacert=/etc/pki/tls/certs/ca-bundle.crt
    
    The result is a home built docker repo! that you can then upload to the fileshare of your workspace
    
    As root temporarily move the content (if any)  from yum.repos.d and copy your home built repo to the yum repos:
33. cp /var/lib/nvidia-docker-repo/nvidia-docker/centos7/nvidia-docker.repo /etc/yum.repos.d/nvidia-docker.repo
    
    And then yum install it:
34. yum install -y nvidia-docker2  (see above)
    
    Restart docker.
    Finally set the old content of yum.repos.d back