Dockerfile

We are going to use docker to deploy our application. To do so we need to create a dockerfile

Step 1: Dockerfile Make sure you are in your root app directory and type the following into the commad line.

touch dockerfile

The dockerfile will specify all of the commands we needed to build a docker image

Step 2: Connect your shell to your maching

Run the following in your terminal:

eval $(docker-machine env elixir-experiment)

This will connect your shell to your machine.

Copy and paste the following into your dockerfile:

FROM elixir:1.4.2
ENV PORT=4000 MIX_ENV=prod

ENV APP_NAME=myapp APP_VERSION="0.1.0"

RUN mix local.hex --force && \
    mix local.rebar --force && \
    mkdir /build

WORKDIR /build
COPY ./mix.exs /build
COPY ./mix.lock /build
COPY ./config /build/config
RUN mix do deps.get, deps.compile

COPY . /build
RUN mix do compile, release --verbose
# ADD _build/prod/rel/$APP_NAME .

RUN ln -s /build/_build/prod/rel/$APP_NAME /$APP_NAME

EXPOSE $PORT

WORKDIR /$APP_NAME
CMD trap exit TERM; /$APP_NAME/bin/$APP_NAME foreground & wait