Dockerfile

FROM alpine:3.11 as hs

# install ghc and stack
RUN \
	apk add --no-cache git curl gcc g++ gmp-dev ncurses-dev libffi-dev make xz tar perl && \
	apk add --no-cache zlib zlib-dev zlib-static ncurses-static && \
	curl https://downloads.haskell.org/~ghcup/x86_64-linux-ghcup > /usr/bin/ghcup && \
	chmod +x /usr/bin/ghcup && \
	ghcup install ghc 8.6.5 && \
	ghcup set ghc 8.6.5 && \
	ghcup install stack

# install haskell-code-explorer
RUN \
	git clone https://github.com/alexwl/haskell-code-explorer.git ~/haskell-code-explorer && \
	cd ~/haskell-code-explorer && \
	export PATH="/root/.ghcup/bin:$PATH" && \
	stack --system-ghc --stack-yaml=stack-8.6.5.yaml install --ghc-options='-optl-static -split-sections' --copy-bins


FROM ubuntu:bionic

RUN \
  apt-get update && \
  apt-get -y upgrade && \
  apt-get install -y software-properties-common && \
  apt-get install -y curl git wget nano && \
  apt-get install -y build-essential pkg-config curl libffi-dev libffi6 libgmp-dev libgmp10 libncurses-dev libncurses5 libtinfo5 && \
  apt-get install -y libsodium-dev sqlite zlib1g-dev libssl-dev && \
  rm -rf /var/lib/apt/lists/*

COPY --from=hs /usr/bin/stack /usr/bin/stack
COPY --from=hs /usr/bin/ghcup /usr/bin/ghcup
COPY --from=hs /root/.local/bin/haskell-code-server /usr/bin/haskell-code-server
COPY --from=hs /root/.local/bin/haskell-code-indexer /usr/bin/haskell-code-indexer

Hi, @hasufell!:wave: Could you kindly briefly explain me --ghc-options= on line 18?

I am currently compiling a Haskell project in a container with the command stack setup && stack install, with no options. But I get a bunch of problems when I copy the binary to another container, especially if it is based on another OS (RHEL based), similar to your case. How can I copy the binary so that it can be executed on its own? Do I still need to have all the perl, ssl, etc. deps like on line 28?

Hi, @hasufell!👋 Could you kindly briefly explain me --ghc-options= on line 18?

I am currently compiling a Haskell project in a container with the command stack setup && stack install, with no options. But I get a bunch of problems when I copy the binary to another container, especially if it is based on another OS (RHEL based), similar to your case. How can I copy the binary so that it can be executed on its own? Do I still need to have all the perl, ssl, etc. deps like on line 28?

ghc-options cause the binary to be linked statically. Then you can copy anywhere. For that to work you need to use alpine container though (or some other musl based one).

I see. I ended up doing just stack --system-ghc install --copy-bins without the --ghc-options flag. I think it solved the issue I was having with the built binary not working in another container based on another OS. Anyways, this example was helpful, especially the ghcup install part! Thanks.