added docker support

Dockerfile

@@ -1,52 +1,36 @@
-# TODO: start of a docker file for build on a centos image
-FROM quay.io/concur_platform/centos:7.3.1611-4390ad7
-MAINTAINER https://github.com/concur/docker-centos-elixir
-LABEL Description="Build image with Erlang 20.2 | Elixir 1.5.2"
+FROM node:8.12-alpine
 
-ENV LANG=en_US.UTF-8 ELIXIR_VERSION=1.5.2 ERLANG_VERSION=20.2
-WORKDIR /root
+WORKDIR /home/client
+ADD ./client .
+RUN npm install
+RUN npm run build
 
-RUN yum -y install epel-release &&  \
-    yum -y install gcc gcc-c++ glibc-devel make ncurses-devel wget \
-                   openssl-devel autoconf java-1.8.0-openjdk-devel \
-                   git wxBase.x86_64 unzip which && \
-    yum clean all && \
-    localedef -i en_US -f UTF-8 en_US.UTF-8
 
-RUN curl -OLS --compressed https://raw.githubusercontent.com/kerl/kerl/master/kerl && \
-    chmod a+x /root/kerl && \
-    /root/kerl update releases && \
-    /root/kerl build $ERLANG_VERSION $ERLANG_VERSION && \
-    /root/kerl install $ERLANG_VERSION /usr/lib/erlang && \
-    /root/kerl cleanup all && \
-    ln -s /usr/lib/erlang/bin/ct_run /usr/bin/ct_run && \
-    ln -s /usr/lib/erlang/bin/dialyzer /usr/bin/dialyzer && \
-    ln -s /usr/lib/erlang/bin/epmd /usr/bin/epmd && \
-    ln -s /usr/lib/erlang/bin/erl /usr/bin/erl && \
-    ln -s /usr/lib/erlang/bin/erlc /usr/bin/erlc && \
-    ln -s /usr/lib/erlang/bin/escript /usr/bin/escript && \
-    ln -s /usr/lib/erlang/bin/run_erl /usr/bin/run_erl && \
-    ln -s /usr/lib/erlang/bin/start /usr/bin/start && \
-    ln -s /usr/lib/erlang/bin/start_erl /usr/bin/start_erl && \
-    ln -s /usr/lib/erlang/bin/to_erl /usr/bin/to_erl && \
-    ln -s /usr/lib/erlang/bin/typer /usr/bin/typer
+FROM elixir:1.7.3-alpine
 
-RUN curl -OLS --compressed https://github.com/elixir-lang/elixir/releases/download/v$ELIXIR_VERSION/Precompiled.zip && \
-    unzip -o -d /usr/lib/elixir Precompiled.zip && \
-    rm Precompiled.zip && \
-    ln -s /usr/lib/elixir/bin/elixir /usr/bin/elixir && \
-    ln -s /usr/lib/elixir/bin/mix /usr/bin/mix && \
-    ln -s /usr/lib/elixir/bin/elixirc /usr/bin/elixirc && \
-    ln -s /usr/lib/elixir/bin/iex /usr/bin/iex && \
-    mix local.hex --force && \
-    mix local.rebar --force && \
-    mix hex.info
+WORKDIR /home
 
-# TODO: install yarn
-# RUN curl -OLS --compressed https://nodejs.org/dist/v6.10.3/node-v6.10.3-linux-x64.tar.xz && \
-#     tar xpvf node-v6.10.3-linux-x64.tar.xz && \
-#     mv /root/node-v6.10.3-linux-x64 /usr/lib/node && \
-#     ln -s /usr/lib/node/bin/node /usr/bin/node && \
-#     ln -s /usr/lib/node/bin/npm /usr/bin/npm
+ADD . .
+COPY --from=0 /home/priv/static /home/priv/static
 
-CMD "/bin/bash"
+RUN apk add alpine-sdk
+
+ENV MIX_ENV=prod
+ENV REPLACE_OS_VARS=true
+
+RUN mix local.hex --force
+RUN mix local.rebar --force
+RUN mix deps.get
+RUN mix deps.compile
+RUN mix release --env=prod
+
+FROM alpine:3.8
+
+RUN apk update
+RUN apk add bash openssl-dev
+
+ENV REPLACE_OS_VARS=true
+
+WORKDIR /home
+
+COPY --from=1 /home/_build /home/_build