Dockerfile for releases

OTP - Dockerfile

FROM alpine:3.5

ARG APP

EXPOSE 5000
EXPOSE 4369
ENV PORT=5000 \
    MIX_ENV=prod

RUN apk --no-cache add ncurses openssl

COPY releases/$APP /opt/$APP
RUN mkdir -p /opt/$APP/log

RUN \
    cd /opt/$APP && \
    chmod -R 777 /opt/$APP && \
    ln -s /opt/$APP/bin/$APP /opt/$APP/bin/app

ENV PATH /opt/$APP/bin:/opt/$APP/erts-8.3/bin:$PATH

WORKDIR /opt/$APP

COPY releases/run run

CMD ./run foreground