goyder / previous-docker

Previous Emulation

Set-up

After a significant amount of experimentation, I've found Xpra is the best solution for running this remotely.

This requires some configuration.

Install Xpra

Simple:

sudo apt-get install xpra

Configure Xpra to launch on Systemd

We define the service:

/etc/systemd/system/xpra@.service

[Unit]
Description=xpra display

[Service]
Type=simple
User=%i
EnvironmentFile=/etc/conf.d/xpra
ExecStart=/usr/bin/xpra start :100 --no-daemon --systemd-run=no --bind-tcp=0.0.0.0:5900

[Install]
WantedBy=multi-user.target

/etc/conf.d/xpra

ubuntu=:666

And then enable it:

sudo systemctl enable --now [e-mail]

Check the status with:

sudo systemctl status [e-mail]

Launch an X11 app

xeyes

Test a simple solution:

$ export DISPLAY=:100
$ xeyes

Simple app in Docker

Test a simple app in Docker:

$ cd gnuplot
$ xhost +  # Consider a more secure solution
$ ./build.sh
$ ./launch.sh 

In the gnuplot interface, test:

plot sin(x)

Launch Previous in Docker

$ cd previous-x11
$ xhost +  # Consider a more secure solution
$ ./build.sh
$ ./launch.sh