install Pihole in Docker in Raspbian Buster

gistfile1.txt

# burn a fresh image of raspbian.
# to enable ssh access: touch /boot/ssh  (or before unmounting from the host: touch /media/$USER/boot/ssh)
# ssh-copy-id pi@<the IP>   pass = raspberry
#
# install docker:
curl -sSL https://get.docker.com | sh
# I created an image after this stage using sudo dd if=/dev/sda conv=sync,noerror bs=1M   > raspbian_docker-thin-2021-10-18.img
#
# copy the docker_run.sh from https://github.com/pi-hole/docker-pi-hole/blob/master/docker_run.sh
# modify the SERVER_IP value to the IP of the pihole machine in the LAN.
# and chmod +x docker_run.sh
#finally, run it
./docker_run.sh

# change the /boot/cmdline.txt to something like:
console=serial0,115200 console=tty1 root=PARTUUID=d5b47c39-02 rootfstype=ext4 elevator=deadline fsck.repair=no rootwait noswap