Support Ubuntu 18.04 container

[bofortitude]

Hi, as the Ubuntu 18.04 has been released for about half year, could you please make a container base on Ubuntu 18.04?

[bertram1isu]

@bofortitude , I found that just replacing 16.04 with 18.04 in the FROM line seems to be all that is required. So far I haven't run into any issues with the resulting image.

[bofortitude]

Really, thanks, i’ll have a try

[sam2kb]

There's a fork for Ubuntu 18.04
https://hub.docker.com/r/wittyfinch/ubuntu-vnc

[DRepinSLB]

It would be great to have both Ubuntu 16.04 and Ubuntu 18.04 officially supported.

[Felix-neko]

Please support 18.04 officially, it would be really great!

[horrorschau105]

For Ubuntu 20.04, the above trick won't work, because the /headless/noVNC/utils/launch.shscript is lacking a python2 interpreter and will fail.

To fix it, it's (for example) sufficient to link to python interpreter in the Dockerfile:

RUN ln -s `which python2` /usr/bin/python

[tmyoda]

There is also a fork for Ubuntu 18.04.
https://hub.docker.com/r/tmyoda/ubuntu18-xfce-vnc
https://hub.docker.com/r/tmyoda/ubuntu18-icewm-vnc

I just forked this repository and updated it to 18.04. I've not changed anything else.