Elixir docker images

Configuration to generate Docker images with elixir pre-installed for armv6 (Raspberry Pi A/B/B+)/armv7 (Raspberry Pi 2) architectures.

• armv7l-archlinux-elixir: image based on armv7/armhf-archlinux
• armv6l-archlinux-elixir: image based on digitallyseamless/archlinux-armv6

Use the images

The goal is to provide some images based on various distributions available for ARM tagged based on the Elixir release included

• For Archlinux with elixir 1.0.3, the tagged image will be: jonathantron/armv7l-archlinux-elixir:1.0.3

You can use those images directly:

# Start an iex session, deleting the container once you exit
docker run -ti --rm jonathantron/armv7l-archlinux-elixir:1.0.3 iex

Or you can choose to use them to build you own via Dockerfile:

# For stable build, depends on tagged release
FROM jonathantron/armv7l-archlinux-elixir:1.0.3

MAINTAINER You <you@yourdomain.tld>

# your image specific elements

Generate an image

There are currently three ways to generate the image:

1. Directly from an ARM host, running both Docker client and Docker daemon:

# connect to the ARM host (either via ssh or using the console if you have a keyboard/mouse/screen connected to it)
git clone https://github.com/JonathanTron/docker-arm-elixir.git
cd docker-armhf-elixir
# Build the image
make build
# Run some tests to ensure elixir works as expected
make test
# When ready you can tag a release
make release

2. From a host running the Docker client, controlling Docker daemon on an ARM host:

# On your machine, ensure you have Docker client configured to talk to Docker daemon on your ARM host
# Replace IP by your ARM host ip address
# Replace PORT by your ARM host's docker port
export DOCKER_HOST=tcp://IP:PORT
# Clone this repository
git clone https://github.com/JonathanTron/docker-arm-elixir.git
cd docker-armhf-elixir
# Build the image
make build
# Run some tests to ensure elixir works as expected
make test
# When ready you can tag a release
make release

3. Using a Vagrant box (x86_64), running Docker daemon and Docker client, using qemu-user-static to generate an ARM image:

   WARNING

   This option is slower than generating the image on an ARM host. But at least you can generate an image even when you have no access to an ARM host.

   # Clone this repository
   git clone https://github.com/JonathanTron/docker-arm-elixir.git
   cd docker-armhf-elixir
   # Boot the Vagrant VM and connect via ssh
   vagrant up
   vagrant ssh
   # Build the image, specifying which arch to target: 'armv7l' (Raspberry PI 2) or 'armv6l' (Raspberry PI A/B/B+)
   make build HOST_ARCH=armv7l
   # Run some tests to ensure elixir works as expected
   make test
   # When ready you can tag a release
   make release

Credits

This project layout and some scripts (Makefile and test/*) are heavily influenced by Phusion's baseimage-docker project.