lxde-and-kasm.sh

#!/bin/bash

# This has been tested on the aws-linux Coder template, which runs Ubuntu Focal

# Check if LXDE is installed
if ! dpkg -s lxde &> /dev/null; then
  sudo apt-get update
  DEBIAN_FRONTEND=noninteractive sudo apt-get install -y lxde
else
  echo "LXDE is already installed."
fi

# Check if vncserver is installed
if ! dpkg -s kasmvncserver &> /dev/null; then
  cd /tmp
  wget https://github.com/kasmtech/KasmVNC/releases/download/v1.1.0/kasmvncserver_focal_1.1.0_amd64.deb
  sudo apt install -y ./kasmvncserver_focal_1.1.0_amd64.deb
else
  echo "VNC Server is already installed."
fi

sudo addgroup $USER ssl-cert

# Coder port-forwarding from dashboard only supports HTTP
sudo bash -c 'cat > /etc/kasmvnc/kasmvnc.yaml <<EOF
network:
  protocol: http
  ssl:
    require_ssl: false
  udp:
    public_ip: 127.0.0.1
EOF'

# This password is not used since we start the server without auth. 
# The server is protected via the Coder session token / tunnel
# and does not listen publicly on the VM
echo -e "password\npassword\n" | vncpasswd -wo -u $USER

# Start the server :)
sudo su -u $USER bash -c 'vncserver -select-de "lxde" -disableBasicAuth'