Running docker on raspberry pi3

docker_on_rpi3.md

Docker on RPI3

• Get the latest Raspbian Jessie Lite
• Get Etcher
• Use Etcher to burn the Raspbian image to an sd card, 16GB or higher, probably
• Mount the Raspbian image again and edit /boot/config.txt to add

gpu_mem=16

Since the rpi will be headless, there’s no need to give a ton of shared memory to the gpu.

• Boot up the pi, with monitor and keyboard attached. (ssh is not enabled by default)
• I always find that the image is set to en.UK and my keyboard doesn’t have the right keymap. This can be fixed by changing the i18n settings with:

sudo raspi-config

You may need to restart after for settings to take effect. You can also take this time to enable the ssh server in advanced settings.

• We need to add the overlay kernel module:

echo "overlay" | sudo tee -a /etc/modules

• Also set up wifi:

echo 'network={
    ssid="your-ssid"
    psk="your-psk"
}' | sudo tee -a /etc/wpa_supplicant/wpa_supplicant.conf

• Resize the filesystem.

sudo raspi-config

• Reboot, and you should have wifi running, and ssh.
• Install docker

curl -sSL get.docker.com | sh

• configure docker to start on boot

sudo systemctl enable docker

• You should also be able to start docker manually, though docker wouldn’t work for me without a reboot.

sudo systemctl start docker

• Give the pi user access to run docker commands:

sudo usermod -aG docker pi

• Install docker compose

sudo apt-get update
sudo apt-get install -y apt-transport-https
echo "deb https://packagecloud.io/Hypriot/Schatzkiste/debian/ jessie main" | sudo tee /etc/apt/sources.list.d/hypriot.list
sudo apt-get update
sudo apt-get install docker-compose

• Reboot the pi, and docker should be running

docker images