server-install.sh

#!/bin/sh -e

./install-tools.sh

mkdir -p /etc/wireguard

private_key=`wg genkey`
public_key=`printf ${private_key} | wg pubkey`
echo "Public Key: ${public_key}"

printf 'Please enter wireguard configuration name: [wg0] '
read wg_cfg_name
: ${wg_cfg_name:='wg0'}

printf 'Please enter address: [192.168.128.1/24] '
read address
: ${address:='192.168.128.1/24'}

printf 'Please enter listen port: [8443] '
read listen_port
: ${listen_port:='8443'}

printf 'Please enter peer public key: '
read peer_public_key

printf 'Please enter peer allowed ips: [192.168.128.2/32] '
read peer_allowed_ips
: ${peer_allowed_ips:='192.168.128.2/32'}

config_file_path="/etc/wireguard/${wg_cfg_name}.conf"
config=$(printf "\
[Interface]
Address = ${address}
PrivateKey = ${private_key}
ListenPort = ${listen_port}

[Peer]
PublicKey = ${peer_public_key}
AllowedIPs = ${peer_allowed_ips}\
")

if [ -f "${config_file_path}" ];
then
	printf "Warning! ${config_file_path} already exists, do you override it? [y/N] "
	read confirm
	confirm=$(printf "${confirm}" | tr '[:upper:]' '[:lower:]')
	if [ "${confirm}" = "y" -o "${confirm}" = "yes" ];
	then
		# Ignore
		:;
	else
		echo "${config}"
		exit
	fi
fi

echo "${config}" > "${config_file_path}"
echo Saved to ${config_file_path}