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Dockerfile: improves docker image size and small others

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This greatly improves size of the final docker image with the help of
multi-stage docker builds.

With that change, we can also make the build stage readable/maintainable
again by splitting up into multiple RUN statements as well as not
needing to clean-up temporary objects.

The dependencies have been put on top of the primary COPY statement
in order to not rebuild the dependencies each time one wants to rebuild
the docker image (for example due to code changes).

The solc compilation itself is now parallelized to the CPU core count
to speed up those builds that have more cores available on their docker
build system.

Future Notes:
-------------

We could further improve the Dockerfile by explicitely adding the
directories this docker build is interested in (such as solc source code
exclusively).

Or one may want to also use the build step for automated testing (CI)
by enforcing soltest and cmdlineTests.sh right before finalizing the image.
This commit is contained in:
Christian Parpart 2018-06-21 16:54:48 +02:00
parent 4be9dc4304
commit 7546100776
1 changed files with 14 additions and 9 deletions
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21
scripts/Dockerfile
View File

@ -1,18 +1,23 @@
FROM alpine
FROM alpine AS build
MAINTAINER chriseth <chris@ethereum.org>
#Official solidity docker image
#Establish working directory as solidity
WORKDIR /solidity
# Build dependencies
ADD /scripts/install_deps.sh /solidity/scripts/install_deps.sh
RUN ./scripts/install_deps.sh
#Copy working directory on travis to the image
COPY / $WORKDIR
#Install dependencies, eliminate annoying warnings, and build release, delete all remaining points and statically link.
RUN ./scripts/install_deps.sh && sed -i -E -e 's/include <sys\/poll.h>/include <poll.h>/' /usr/include/boost/asio/detail/socket_types.hpp &&\
cmake -DCMAKE_BUILD_TYPE=Release -DTESTS=0 -DSOLC_LINK_STATIC=1 &&\
make solc && install -s solc/solc /usr/bin &&\
cd / && rm -rf solidity &&\
apk del sed build-base git make cmake gcc g++ musl-dev curl-dev boost-dev &&\
rm -rf /var/cache/apk/*
#Install dependencies, eliminate annoying warnings
RUN sed -i -E -e 's/include <sys\/poll.h>/include <poll.h>/' /usr/include/boost/asio/detail/socket_types.hpp
RUN cmake -DCMAKE_BUILD_TYPE=Release -DTESTS=0 -DSOLC_LINK_STATIC=1
RUN make solc -j$(grep -c ^processor /proc/cpuinfo) && install -s solc/solc /usr/bin
#RUN strip solc/solc
FROM scratch
COPY --from=build /solidity/solc/solc /usr/bin/solc
ENTRYPOINT ["/usr/bin/solc"]