Erlang in Docker

Dockerfile

FROM <<<private amazon-linux base-image>>>

ENV PATH=/opt/erlang/bin:/opt/rebar/bin:$PATH
COPY install.bash /tmp/
RUN ["/tmp/install.bash"]

Example project dockerfile

FROM whoop/erlang-base:18.1
MAINTAINER Nathaniel Waisbrot <waisbrot@whoop.com>

WORKDIR ${WHOOP_HOME}/my_project
CMD ["./run.bash"]

COPY rebar.config rebar.lock ./
RUN rebar3 update && rebar3 compile
COPY . .
RUN rebar3 release

install.bash

#!/bin/bash -ex

ERL_VSN=18.1

yum clean all
yum install -q -y gcc ncurses-devel perl openssl-devel openssl git

cd /tmp
curl -O https://raw.githubusercontent.com/yrashk/kerl/master/kerl
chmod a+x kerl
if ./kerl build ${ERL_VSN} ${ERL_VSN}; then
    ./kerl install ${ERL_VSN} /opt/erlang-${ERL_VSN}
    ln -s /opt/erlang-${ERL_VSN} /opt/erlang
    echo -e "export PATH=/opt/erlang/bin:\$PATH\n" > /etc/profile.d/erlang.sh

    rm -rf /root/.kerl
    yum clean all

    mkdir -p /opt/rebar/{bin,escript}
    curl -o /opt/rebar/escript/rebar3 https://s3.amazonaws.com/rebar3/rebar3
    chmod a+x /opt/rebar/escript/rebar3
    /opt/rebar/escript/rebar3 unstable install
    ln -s /root/.cache/rebar3/bin/rebar3 /opt/rebar/bin/rebar3
        rebar3 update
else
    cat /root/.kerl/builds/18.1/otp_build_18.1.log >&2
    exit 1
fi