[docker] install lxde desktop and setup vnc server and novnc

apt update

apt install --no-install-recommends lxde-core tightvncserver autocutsel nano xfonts-base

USER=user vncserver

(Would you like to enter a view-only password (y/n)? n)

USER=user vncserver -kill :1

mv ~/.vnc/xstartup ~/.vnc/xstartup.bak

nano ~/.vnc/xstartup

#!/bin/bash

xrdb $HOME/.Xresources

/usr/bin/startlxde &

/usr/bin/autocutsel -s CLIPBOARD -fork

chmod +x ~/.vnc/xstartup

rm -rfv /tmp/.X*

USER=user vncserver -geometry 1200x600

apt install openssl

cd /etc/ssl ; openssl req -x509 -nodes -newkey rsa:2048 -keyout novnc.pem -out novnc.pem -days 36500

chmod 644 novnc.pem

apt-get install --no-install-recommends novnc websockify lxterminal

apt-get remove gnome-screenshot gedit activity-log-manager xscreensaver system-config-printer pavucontrol lxtask

websockify -D --web=/usr/share/novnc/ --cert=/etc/ssl/novnc.pem 6080 localhost:5901

rm /etc/xdg/autostart/lxpolkit.desktop

mv /usr/bin/lxpolkit /usr/bin/lxpolkit.bak

mv /usr/share/icons/Adwaita /usr/share/icons/Adwaita_

mv /usr/share/icons/Humanity /usr/share/icons/Adwaita

USER=user vncserver -kill :1

rm -rfv /tmp/.X*

USER=user vncserver -geometry 1200x600

apt-get clean

apt-get autoremove

rm -rf /var/lib/apt/lists/*

=========================

### fix firefox windows management icons crash

### copy /usr/share/icons/Adwaita_/{8x8 ...to... scalable-up-to-32} folders to /usr/.../Adwaita

### copy /usr/share/icons/Adwaita_/{8x8 ...to... scalable-up-to-32} folders to /usr/.../gnome

Fix Bluefish Search Icon

(copy actions/symbolic/pan-down...(1file) , actions/24/edit-find...(5files) folder only)(light)

https://www.gnome-look.org/p/2078422

https://github.com/L4ki/Gradient-Plasma-Themes/tree/main

next step, build autostart vnc image, see dockerfile

https://pythonlinuxmac.blogspot.com/2022/07/lxde-vnc-novnc-dockerfile.html