Docker image with Erlang, Elixir, and NodeJS on CentOS for cross-building Elixir/Phoenix apps as OTP releases.

Uses CentOS official base image and official binary
builds of Erlang, Elixir, and NodeJS.

Versions:

• CentOS: 7.6 (x86-64) - same as RHEL 7.6
• Erlang: 22.0.4
• Elixir: 1.9.0
• NodeJS: 10.16.0

Warning: Do not use this image to deploy the app as the size is quite large at ~598MB

Github | Docker Hub

For an example build file that cross-builds a Phoenix app, refer to phoenix/build-release.sh file.

This file should be placed at the root of the Elixir/Phoenix project and:

# Run the build script inside a container running this image
# Note: On Windows replace $(pwd) with the actual path

docker run -v $(pwd):/home --rm -it akalan/elixir-centos /home/build-release.sh


# Run the generated release inside the same container

docker run -v $(pwd):/home --rm -it akalan/elixir-centos /home/_build/prod/rel/appname/bin/appname

The release is tarred and zipped to releases/appname-version-utc_time_stamp.tar.gz