Dockerfile.template

FROM balenalib/%%BALENA_ARCH%%-debian:latest-build as build

WORKDIR /usr/src/balena-haskell-hello-world
SHELL ["/bin/bash", "-c"] 

# Install ghcup using the official instructions
#RUN curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_MINIMAL=1 bash
#
# Alas, the installer script runs `ghcup update` regardless of the parameters we supply,
# so we can't pin to a known good version (and 0.1.18.0 is known bad:
# https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/405 ).
# But the download logic is too good to give up, so we've included the version of the
# script at the revision before 0.1.18.0, and then strip the upgrade command out of it here:
COPY bootstrap-haskell-60299b6b ./
RUN grep -vw 'eghcup upgrade' bootstrap-haskell-60299b6b \
			| BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_MINIMAL=1 bash

# Add ghcup bin PATH explicitly, to avoid `source /root/.ghcup/env` before every command.
ENV PATH=${PATH}:/root/.ghcup/bin

# Install prerequisites
RUN install_packages llvm libnuma-dev libgmp3-dev

# install GHC and stack
ARG GHC_VER=8.10.7
ARG STACK_VER=2.7.5
RUN ghcup install ghc ${GHC_VER} && ghcup set ghc ${GHC_VER} && \
		ghcup install stack ${STACK_VER} && ghcup set stack ${STACK_VER} 

COPY *.cabal *.yaml ./

# Install dependencies for the stack project
RUN stack build --only-dependencies

COPY src ./src

RUN stack install

FROM balenalib/%%BALENA_ARCH%%-debian:latest-run 

WORKDIR /usr/

COPY --from=build /root/.local/bin/balena-haskell-hello-world ./
COPY log ./log
COPY views ./views

CMD [ "./balena-haskell-hello-world", "-p", "80" ]