Add Dockerfile and introduction in readme

[mikihiroikura]

Modification

• Dockerfile
  • build yarp, ycm, and event-driven
  • install metavision-sdk
  • use the same user id and group id as yours
  • Two Dockerfiles are created
    • Ubuntu 20.04 + Metavision SDK 3.0 + EVK Firmware (< 3.9)
    • Ubuntu 22.04 + Metavision SDK 4.6 (latest) + EVK Firmware (>= 3.9)
• docker.md
  • introduce how to build docker environment for users

[traversaro]

Hello @mikihiroikura @arrenglover ! Just a curiosity, there is any reason you need to use Ubuntu 20.04 instead of a more modern distribution? We are discussing about dropping Ubuntu 20.04 support for apt dependencies in robotology/robotology-superbuild#1439, and I am afraid that the next YARP release will not support Ubuntu 20.04 with apt dependencies.

[arrenglover]

hey @traversaro ! Typically we are on Ubuntu 22.04 and I advise to use 22.04. However, we have some camera hardware that requires old drivers that install natively using 20.04 and so using Docker we can set the fixed versions of YARP etc. required that are compatible with 20.04 for those that need this old hardware. Eventually I want to update this dockerfile to use 22.04 and find the correct method to install the old drivers manually. when we get time to do it.

Let me know if you have a better solution! thanks

[traversaro]

Ah, that is clear, thanks! Yes, unfortunately hardware drivers are a pain in the neck for what regards software update.

[mikihiroikura]

Hello @traversaro @arrenglover . Thank you for the comments.
After getting your comment, I created docker environment with ubuntu:jammy and Metavision SDK ver4.6.2 for Ubuntu 22.04 to check if event camera works. But I could not detect the event camera from this docker environment by using the command metavision_studio, which is provided by Prophesee to visualize raw event data. I will survey this issue in more detail when I have time (maybe it is related to hardware issue as you said). Instead, the dockerfile in this pull request can detect event cameras and camera works with yarp environment Ubuntu 20.04. Thanks.

[arrenglover]

perect thanks