Elixir/Elm Docker Image

Simple Docker image for Phoenix/Elm applications, built with GitLab CI in mind. This image is publicly available on Docker Hub and GitHub.

The point is to be able to test and deploy Phoenix/Elm applications. As such, this image includes:

• Elixir
• Elm, along with elm-test
• Rubygems, along with the dpl gem
• Heroku CLI

Beyond these things, the image contains random utilities that have come in handy during testing -- the idea being that presumably having it installed them here from the get-go is faster than installing everything again every time tests are run.

Ruby and the dpl gem are used to deploy applications, as per GitLab's docs.

Here's a sample .gitlat-ci.yml file, again based off GitLab's docs and extended with the Elm commands:

image: psguazz/elixir-elm

services:
  - postgres:9.6

variables:
  MIX_ENV: "test"
  POSTGRES_DB: "<db>"
  POSTGRES_USER: "<user>"
  POSTGRES_PASSWORD: "<password>"

test:
  script:
    - mix local.hex --force
    - mix deps.get --only test
    - mix ecto.reset
    - mix test
    - cd <elm-test directory>
    - elm-test

staging:
  type: deploy
  script:
    - dpl --provider=heroku --app=<app name> --api-key=$HEROKU_STAGING_API_KEY
  only:
    - master