Install as Docker container
https://github.com/pi-hole/docker-pi-hole/blob/master/examples/docker_run.sh

mkdir  /mnt/data/pihole
chmod 777 /mnt/data/pihole

PIHOLE_BASE=/mnt/data/pihole

docker run -d \
    --name pihole \
    -p 53:53/tcp \
    -p 53:53/udp \
    -p 8081:80 \
    -e TZ="Europe/​Berlin" \
    -v "${PIHOLE_BASE}/etc-pihole:/etc/pihole" \
    -v "${PIHOLE_BASE}/etc-dnsmasq.d:/etc/dnsmasq.d" \
    --dns=127.0.0.1 \
    --dns=1.1.1.1 \
    --restart=unless-stopped \
    --hostname pi.hole \
    -e VIRTUAL_HOST="pi.hole" \
    -e PROXY_LOCATION="pi.hole" \
    -e FTLCONF_LOCAL_IPV4="127.0.0.1" \
    pihole/pihole:latest


printf 'Starting up pihole container '
for i in $(seq 1 20); do
    if [ "$(docker inspect -f "{{.State.Health.Status}}" pihole)" == "healthy" ] ; then
        printf ' OK'
        echo -e "\n$(docker logs pihole 2> /dev/null | grep 'password:') for your pi-hole: http://${IP}/admin/"
        exit 0
    else
        sleep 3
        printf '.'
    fi

    if [ $i -eq 20 ] ; then
        echo -e "\nTimed out waiting for Pi-hole start, consult your container logs for more info (\`docker logs pihole\`)"
        exit 1
    fi
done;

Login
http://ha:8081/admin/login.php

Links
https://github.com/pi-hole/docker-pi-hole/?tab=readme-ov-file#running-pi-hole-docker