VSCode Server with Haskell

Dockerfile

FROM gitpod/openvscode-server:latest

 
# -------------------------------------------------
# GHCup requirements Ubuntu >= 20 && 23
# -------------------------------------------------
USER root
RUN apt update \
  && apt install -q -y --no-install-recommends \
                build-essential \
                curl \
                libffi-dev \
                libffi8ubuntu1 \
                libgmp-dev \
                libgmp10 \
                libncurses-dev \
                libncurses5 \
                libtinfo5
 
# -------------------------------------------------
# Install GHCup
# -------------------------------------------------
USER openvscode-server
RUN curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org \
    | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 sh

ENV PATH="/home/workspace/.ghcup/bin:${PATH}"

# -------------------------------------------------
# Install tools (GHC, cabal-install, HLS)
# -------------------------------------------------
USER openvscode-server
RUN ghcup install ghc recommended
RUN ghcup set ghc recommended
RUN ghcup install cabal recommended
RUN ghcup install hls recommended

# -------------------------------------------------
# Install VSCode extensions
# -------------------------------------------------
USER openvscode-server
ENV OPENVSCODE_SERVER_ROOT="/home/.openvscode-server"
ENV OPENVSCODE="${OPENVSCODE_SERVER_ROOT}/bin/openvscode-server"

RUN ${OPENVSCODE} --install-extension haskell.haskell


# -------------------------------------------------
# Always switch back to user openvscode-server
# ------------------------------------------------- 
USER openvscode-server