#!/bin/bash
set -e

LAB_NAME="{{ gateway_config.lab_name }}"
VNI="{{ gateway_config.vni }}"
WG_IF="wg-${LAB_NAME}"
VXLAN_IF="vxlan${VNI}"

# Wait for WireGuard interface
timeout=30
while [ $timeout -gt 0 ]; do
    if ip link show ${WG_IF} &>/dev/null; then
        break
    fi
    sleep 1
    ((timeout--))
done

# Create VXLAN interface
if ! ip link show ${VXLAN_IF} &>/dev/null; then
    ip link add ${VXLAN_IF} type vxlan \
        id ${VNI} \
        dev ${WG_IF} \
        dstport {{ vxlan_port }} \
        nolearning \
        proxy
fi

# Configure VXLAN peers (FDB entries)
{% for peer in gateway_config.peers %}
bridge fdb append 00:00:00:00:00:00 dev ${VXLAN_IF} dst {{ peer.wg_ip }}
{% endfor %}

# Bring up interface
ip link set ${VXLAN_IF} up