dockerfile

FROM ubuntu:18.10
RUN apt-get update && apt-get install -y \
  libbsd-dev \
  libedit-dev \
  libevent-dev \
  libgc-dev \
  libgmp-dev \
  libgmpxx4ldbl \
  libssl-dev \
  libxml2-dev \
  libyaml-dev \
  libreadline-dev \
  automake \
  libtool \
  git \
  llvm \
  llvm-dev \
  libpcre3-dev \
  build-essential \
  libz-dev \
  && rm -rf /var/lib/apt/lists/*
RUN git clone --depth 1 https://github.com/crystal-lang/crystal.git
RUN cd crystal && make deps
COPY . /project/
RUN cc '/project/appname.o' -o '/project/appname'  -rdynamic  -lz `command -v pkg-config > /dev/null && pkg-config -/libgc.a -lpthread /crystal/src/ext/libcrystal.a -levent -lrt -ldl -L/usr/bin/../lib/crystal/lib -L/usr/lib -L/usr/local/lib

dockerfile-arm-builder

FROM crystal-ubuntu
WORKDIR /project
COPY shard.yml shard.lock ./
RUN shards install --production
COPY src src
RUN shards build --release --production --cross-compile --target=arm-unknown-linux-gnueabihf

dockerfile-crystal-ubuntu

FROM ubuntu:18.10
RUN apt-get update && \
    apt-get install -y curl gnupg && \
    apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
RUN curl -sL "https://keybase.io/crystal/pgp_keys.asc" | apt-key add - \
  && echo "deb https://dist.crystal-lang.org/apt crystal main" | tee /etc/apt/sources.list.d/crystal.list \
  && apt-get update && apt-get install -y \
  crystal \
  libbsd-dev \
  libedit-dev \
  libevent-dev \
  libgc-dev \
  libgmp-dev \
  libgmpxx4ldbl \
  libssl-dev \
  libxml2-dev \
  libyaml-dev \
  libz-dev \
  libreadline-dev \
  automake \
  libtool \
  git \
  llvm \
  llvm-dev \
  libpcre3-dev \
  build-essential \
  && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

RUN git clone --branch 0.30.0 --depth 1 https://github.com/crystal-lang/crystal.git
RUN cd crystal && make clean crystal release=1
RUN mv /crystal/.build/crystal /usr/lib/crystal/bin/crystal