Docker Install Script (Selectable Docker Version) - Useful for installing on Pi Zero

#!/bin/sh

# Downgraded PiZero Docker installation Script

# Thanks to : - https://withblue.ink/2017/12/31/yes-you-can-run-docker-on-raspbian.html

echo 'building downgrade conf file' 

cat <<- EOF > /tmp/docker-ce.txt

Package: docker-ce

Pin: version 18.06.*

Pin-Priority: 1000

EOF

# Update/Add  `/etc/apt/preferences.d/docker-ce` to:

sudo cp /tmp/docker-ce.txt /etc/apt/preferences.d/docker-ce

curl -sSL https://get.docker.com > /tmp/ins.sh && chmod +x /tmp/ins.sh

/tmp/ins.sh

sudo gpasswd -a $USER docker

newgrp docker

# Install required packages for docker-compose

sudo apt update

sudo apt install -y python python-pip

# Install Docker Compose from pip

sudo pip install docker-compose

docker run --rm -it hello-world