Gateway client

#!/bin/bash                                                                                                                                                 
set -x
CONF_URL="http://127.0.0.1:5000/config/export/1/wg-sync"
WG_IF="wg0"
PRIVATE_KEY="asdf"

ip link add ${WG_IF} type wireguard
ip addr flush dev ${WG_IF}
ip addr add fe80::/64 dev ${WG_IF} 
wg set ${WG_IF} listen-port 51821 
wg set ${WG_IF} private-key <(echo ${PRIVATE_KEY})
ip link set ${WG_IF} up

while true; do 
    wg syncconf "${WG_IF}" <(
        curl "${CONF_URL}" | \
        sed "/\[Interface\]/a\PrivateKey=${PRIVATE_KEY}"
    )
    sleep 1
done