docker-pi-hole/docker_run.sh

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#!/bin/bash
IMAGE=${1:-'diginc/pi-hole:alpine'}
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IP_LOOKUP="$(ip route get 8.8.8.8 | awk '{ print $NF; exit }')" # May not work for VPN / tun0
IPv6_LOOKUP="$(ip -6 route get 2001:4860:4860::8888 | awk '{ print $10; exit }')" # May not work for VPN / tun0
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IP="${IP:-$IP_LOOKUP}" # use $IP, if set, otherwise IP_LOOKUP
IPv6="${IPv6:-$IPv6_LOOKUP}" # use $IPv6, if set, otherwise IP_LOOKUP
echo "IP: ${IP} - IPv6: ${IPv6}"
# Default ports + daemonized docker container
docker create \
--name pihole \
-p 53:53/tcp -p 53:53/udp -p 80:80 \
-v /etc/volumes/pihole:/etc/pihole \
-v /etc/volumes/dnsmasq.d:/etc/dnsmasq.d \
-e ServerIP="${IP:-$(ip route get 8.8.8.8 | awk '{ print $NF; exit }')}" \
-e ServerIPv6="${IPv6:-$(ip -6 route get 2001:4860:4860::8888 | awk '{ print $10; exit }')}" \
--restart=always \
diginc/pi-hole
docker start pihole
sleep 2
docker logs pihole 2> /dev/null | grep 'password:'