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Improve Docker build (#341)

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Summary:
* Reduces size of final image from 5GB to 130MB
* Builds any checkout (not locked to the master)
* Doesn't run stack on CMD (executes static build of Duckling instead)
Pull Request resolved: https://github.com/facebook/duckling/pull/341

Reviewed By: chinmay87

Differential Revision: D21083018

Pulled By: patapizza

fbshipit-source-id: d909158f20f5b8da5b0248a25103b850797bc3a3
This commit is contained in:
Pranas Kiziela 2020-04-17 07:49:04 -07:00 committed by Facebook GitHub Bot
parent 4bfe50eed0
commit a93cae1c02
2 changed files with 25 additions and 7 deletions
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.dockerignore Normal file
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.stack-work

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Dockerfile
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FROM haskell:8 FROM haskell:8 AS builder
RUN git clone https://github.com/facebook/duckling.git RUN apt-get update -qq && \
apt-get install -qq -y libpcre3 libpcre3-dev build-essential --fix-missing --no-install-recommends && \
apt-get clean && \
rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
RUN mkdir /log RUN mkdir /log
WORKDIR /duckling WORKDIR /duckling
RUN apt-get update ADD stack.yaml .
RUN apt-get install -qq -y libpcre3 libpcre3-dev build-essential --fix-missing --no-install-recommends
ENV LANG=C.UTF-8 ENV LANG=C.UTF-8
RUN stack setup RUN stack setup
ADD . .
# NOTE:`stack build` will use as many cores as are available to build # NOTE:`stack build` will use as many cores as are available to build
# in parallel. However, this can cause OOM issues as the linking step # in parallel. However, this can cause OOM issues as the linking step
# in GHC can be expensive. If the build fails, try specifying the # in GHC can be expensive. If the build fails, try specifying the
# '-j1' flag to force the build to run sequentially. # '-j1' flag to force the build to run sequentially.
RUN stack build RUN stack install
ENTRYPOINT stack exec duckling-example-exe FROM debian:stretch
ENV LANG C.UTF-8
RUN apt-get update -qq && \
apt-get install -qq -y libpcre3 libgmp10 --no-install-recommends && \
apt-get clean && \
rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
COPY --from=builder /root/.local/bin/duckling-example-exe /usr/local/bin/
EXPOSE 8000
CMD ["duckling-example-exe", "-p", "8000"]