unifios-utilities/run-pihole

Run PiHole on your UDM

Features

1. Run PiHole on your UDM with a completely isolated network stack. This will not port conflict or be influenced by any changes on by Ubiquiti
2. Persists through reboots and firmware updates.

Requirements

1. You have setup the on boot script described here
2. PiHole persists through firmware updates. The on-boot script does not. If you update your firmware, setup on-boot again and everything should work.

Customization

• Feel free to change 20-dns.conflist to change the IP address of the container. Make sure to update all ip references and the iptables rules in on_boot.sh. The IP address can be anywhere from x.x.x.3 to x.x.x.254. .1 is reserved for the gateway and .2 is reserved for the macvlan bridge.
• If you don't want to use vlan5, just replace br5 with br(vlanid) in on_boot.sh and 20-dns.conflist, also update all the ips accordingly

Steps

1. On your controller, make a Corporate network with no DHCP server and give it a VLAN. For this example we are using VLAN 5.
2. Install the CNI plugins with by executing install-cni-plugins.sh on your UDM
3. Copy 20-dns.conflist to /mnt/data/podman/cni (or a place of your choosing and update on_boot.sh symlink). This will create your podman macvlan network
4. Update your on_boot.sh to include the commands in on_boot.sh. You can leave out the iptables rules if you don't want to DNAT all DNS calls to your PiHole
5. Execute on_boot.sh
6. Run the pihole docker container, be sure to make the directories for your persistent pihole configuration. They are mounted as volumes in the command below.

 podman run -d --network dns --restart always \
    --name pihole \
    -e TZ="America/Los Angeles" \
    -v "/mnt/data/etc-pihole/:/etc/pihole/" \
    -v "/mnt/data/pihole/etc-dnsmasq.d/:/etc/dnsmasq.d/" \
    --dns=127.0.0.1 --dns=1.1.1.1 \
    --hostname pi.hole \
    -e VIRTUAL_HOST="pi.hole" \
    -e PROXY_LOCATION="pi.hole" \
    -e ServerIP="10.0.5.3" \
    -e IPv6="False" \
    pihole/pihole:latest

The below errors are expected and acceptable

ERRO[0022] unable to get systemd connection to add healthchecks: dial unix /run/systemd/private: connect: no such file or directory
ERRO[0022] unable to get systemd connection to start healthchecks: dial unix /run/systemd/private: connect: no such file or directory

7. Set pihole password

podman exec -it pihole pihole -a -p YOURNEWPASSHERE

8. Update your DNS Servers to 10.0.5.3 (or your custom ip) in all your DHCP configs.
9. Access the pihole like you would normally.
10. Uncomment podman start pihole in on_boot.sh