Dockerfile for elixir-alpine with iconv

Dockerfile

FROM bitwalker/alpine-elixir:1.8.1

RUN apk add wget
RUN apk add build-base libtool
RUN wget https://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.16.tar.gz
RUN tar -xf libiconv-1.16.tar.gz
RUN cd libiconv-1.16 && ./configure --prefix= && make && make install
RUN libtool --finish /lib
RUN rm libiconv-1.16.tar.gz
RUN rm -r libiconv-1.16

RUN mix new app
WORKDIR /opt/app/app/

RUN sed -i 's/#\ {:dep_from_hexpm,\ "~>\ 0\.3\.0"}/{:iconv,\ "~>\ 1.0.10"}/' mix.exs

RUN mix deps.get
RUN mix deps.compile
RUN mix compile
CMD iex -S mix