Raspberry Deployment

Date: 2018/03/14

Context

In order to deploy a modular set of applications to a target environment, we prefer to use Docker containers.

Many BrewPi customers will not be running Linux w/ Docker, or have the desire and technical know-how to install it.

A compromise is to support Raspberry Pi deployment. They are cheap, and can be easily installed. If we provide a thin OS with our requirements pre-installed, customers can easily put this on an SD card, and run it on their Pi.

Requirements

• Prebuilt image, or simple installation guide.
• Installation of the following containers on a Docker container inside a Raspberry
  • RabbitMQ
  • InfluxDB
  • traefic
  • Python3.6

Installation

Since Raspbian Jessie Raspberry officially supports Docker. This means we can use the default Raspbian image, along with the default installation guide

Required steps

• Download Raspbian Lite image
• Write the image to an SD card using Etcher(Linux/Windows) or Rufus(Windows)
• Plug the SD card into the Raspberry
• Connect the Raspberry to SSH or a monitor/keyboard
• Log in on the Raspberry using SSH / monitor
• Update / upgrade system: sudo apt update && sudo apt upgrade -y
• Install Docker: curl -sSL https://get.docker.com | sh
• Install Python/Pip sudo apt install -y python python-pip
• Install Docker-compose sudo pip install docker-compose

References

• https://www.raspberrypi.org/blog/docker-comes-to-raspberry-pi/
• https://www.raspberrypi.org/documentation/installation/installing-images/README.md