Linux-Desktop

Another Linux Desktop

flowchart LR
  OS[Oracle Linux 8.6]-..-
  SVC[Supervisor]-..-
  UI[XFCE4]-..-
  VNC[TigerVNC]-..-
  HTTP[NoVNC]

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BCI-3 : Build and Tag Image

docker build --tag linux-desktop:8 .

BCI-4 : Run Docker Image

docker run -it \
 --shm-size 512m \
 --cap-add=SYS_PTRACE \
 --tmpfs /tmp \
 --tmpfs /run \
 --tmpfs /run/lock \
 --volume /sys/fs/cgroup:/sys/fs/cgroup:ro \
 --volume /lib/modules:/lib/modules:ro \
 --volume /etc/timezone:/etc/timezone:ro \
 --volume /etc/localtime:/etc/localtime:ro \
 -p 80:11 -p 22007:22 -p 59007:5901 \
 --name linux-desktop-8 \
 --hostname linux-desktop-8 \
 linux-desktop:8

BCI-5 : Run Docker Image - Test Mode

docker run -it --rm \
 --shm-size 512m \
 --cap-add=SYS_PTRACE \
 --tmpfs /tmp \
 --tmpfs /run \
 --tmpfs /run/lock \
 --volume /sys/fs/cgroup:/sys/fs/cgroup:ro \
 --volume /lib/modules:/lib/modules:ro \
 --volume /etc/timezone:/etc/timezone:ro \
 --volume /etc/localtime:/etc/localtime:ro \
 -p 80:11 -p 22007:22 -p 59007:5901 \
 --name linux-desktop-8 \
 --hostname linux-desktop-8 \
 linux-desktop:8

Known Issues

Blurred Text

When using scale on your host system, typically 125% or 150%, the VNC session text looks blurred.

At least in browser there is a workaround - you can zoom out the page with NoVNC session:

• for 125% scaling on host desktop -> set browser zoom to 80% + set in the container display DPI from 96 to 128

• for 150% scaling on host desktop -> set browser zoom to 75% + set in the container display DPI from 96 to 128

TimeZone Issues Explained

https://hoa.ro/blog/2020-12-08-draft-docker-time-timezone/

Install NoVNC 1.3.0

pip3 install numpy
cd /usr/local
git clone https://github.com/novnc/noVNC.git
cd /usr/local/noVNC
git checkout tags/v1.3.0
cd /usr/local/noVNC/utils
./novnc_proxy --vnc localhost:5901 &
pid=$!
sleep 20
kill ${pid}

https://github.com/kasmtech/workspaces-core-images

https://github.com/kasmtech/workspaces-images

https://www.digitalocean.com/community/tutorials/how-to-remotely-access-gui-applications-using-docker-and-caddy-on-debian-9