Scripting
Scripting 
Linuxinit
#!/usr/bin/env bash
#Install
apt-get update -qq >/dev/null && apt upgrade -y
apt install -y htop sudo curl net-tools avahi-daemon avahi-utils
hostnamectl set-hostname ${NODENAME}
# add hostname to /etc/hosts
sed -i "1 s#localhost#localhost ${NODENAME}#g" /etc/hosts
#nano
tee /root/.nanorc <<EOF
set constantshow
EOF
#Disable Swap
sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab
swapoff -a
#sysctl
tee /etc/sysctl.d/debian.conf <<EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
EOF
#Apply & Reboot
sysctl --system
reboot