#!/bin/sh
set -e

# Technitium ships /etc/dns as a real directory in the image. We need it
# to point at the persistent HA add-on config volume instead. Remove the
# directory and replace with a symlink at runtime (after HA mounts volumes).

DATA="/config/dns"

mkdir -p "$DATA"

if [ -d /etc/dns ] && [ ! -L /etc/dns ]; then
    # Seed: copy any existing default config into the volume on first run
    if [ -z "$(ls -A "$DATA" 2>/dev/null)" ]; then
        cp -a /etc/dns/. "$DATA"/
    fi
    rm -rf /etc/dns
fi

ln -sf "$DATA" /etc/dns

exec dotnet DnsServerApp.dll