matrix/killall.sh

#!/bin/bash

set -euo pipefail

printf 'WARNING: Will remove everything now. Please confirm: (Y/N) '
read answer

if [ "${answer}" != "${answer#[Yy]}" ] ;then 
    echo "Stopping services"
    systemctl disable --now matrix
    systemctl disable --now nginx
    systemctl disable --now coturn

    echo "Deleting all containers"
    for container in `docker ps -a  | awk '{print $1}' | tail +2`; do docker rm -f ${container}; done

    echo "Purging containers data"
    docker system prune -a -f

    echo "Removing packages"
    cd /tmp
    apt remove -y --purge pwgen nginx python3-certbot-nginx coturn* docker*
    systemctl daemon-reload

    echo "Purging files and directories"
    rm -rf \
        /etc/nginx \
        /etc/turn* \
        /etc/default/coturn \
        /etc/systemd/system/matrix.service \
        /opt/matrix \
        /tmp/matrix \
        /tmp/homeserver.yaml \
        /etc/letsencrypt \
        /tmp/*.zip

    echo "Uninstalling and disabling firewall rules"
    ufw disable
    apt remove -y --purge ufw

    # Removing User's crontab
    crontab -r

    echo "Purging finished"
else
    echo "KillAll aborted"
fi