quick-wireguard/new-client.sh

#!/bin/bash
TEMP_CONF=$(mktemp)
SERVER_NAME="cs2"
SERVER_CONF_FILE="./server/${SERVER_NAME}.conf"
SERVER_KEYFILE="./server/private.key"
export ENDPOINT="wg.oliveratkinson.net:51820"

# Make server
if [[ ! -e "${SERVER_KEYFILE}" ]]; then
	mkdir server 2> /dev/null
	umask 077
	wg genkey > $SERVER_KEYFILE

	if [[ ! -e "${SERVER_CONF_FILE}" ]]; then
		export SERVER_PRIVATE_KEY=$(cat $SERVER_KEYFILE)
		envsubst < server.template > $SERVER_CONF_FILE
	fi
fi
export SERVER_PUBLIC_KEY=$(wg pubkey < $SERVER_KEYFILE)

create_client() {
	mkdir clients 2> /dev/null
	umask 077
	CPRK="/tmp/cprk" # client private key
	CPUK="/tmp/cpuk" # client public key
	wg genkey | tee $CPRK | wg pubkey > $CPUK
	export CLIENT_PRIVATE_KEY=$(cat $CPRK)
	export CLIENT_PUBLIC_KEY=$(cat $CPUK)
	export IP_ADDR=$1

	envsubst < client.template > clients/client${IP_ADDR}.$SERVER_NAME.conf
	envsubst < peer.template >> $SERVER_CONF_FILE
	rm $CPUK $CPRK
}
# create clients
for i in {2..5}; do
    create_client $i
done