4dce416efa
Dockerfile: - Use the most recent stable debian (buster) instead of the previous one - Build version 1.39.11 by default instead of 1.38.43 - Fix small typo in the comments Makefile and README.MD: Fix incorrect name of image on dockerhub.
236 lines
8.8 KiB
Docker
236 lines
8.8 KiB
Docker
FROM debian:buster AS stage_build
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# ------------------------------------------------------------------------------
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# Supports only 1.38.40+, accepts also '-upstream' variants
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ARG EMSCRIPTEN_VERSION=1.39.11
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ARG EMSDK_CHANGESET=master
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# ------------------------------------------------------------------------------
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# NOTE: Any change of following variables should be reflected in ./entrypoint file
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ENV EMSDK /emsdk
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ENV EM_DATA ${EMSDK}/.data
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ENV EM_CONFIG ${EMSDK}/.emscripten
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ENV EM_CACHE ${EM_DATA}/cache
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ENV EM_PORTS ${EM_DATA}/ports
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# ------------------------------------------------------------------------------
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RUN echo "## Start building" \
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\
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&& echo "## Update and install packages" \
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&& apt-get -qq -y update \
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&& apt-get -qq install -y --no-install-recommends \
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libxml2 \
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wget \
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git-core \
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ca-certificates \
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build-essential \
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file \
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python python-pip \
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python3 python3-pip \
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\
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&& echo "## Done"
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RUN echo "## Get EMSDK" \
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&& git clone https://github.com/emscripten-core/emsdk.git ${EMSDK} \
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&& cd ${EMSDK} && git reset --hard ${EMSDK_CHANGESET} \
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\
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&& ./emsdk.py update-tags \
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&& echo "## Done"
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RUN echo "## Install Emscripten" \
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&& cd ${EMSDK} \
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&& ./emsdk install ${EMSCRIPTEN_VERSION} \
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\
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&& echo "## Done"
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# This generates configuration that contains all valid paths according to installed SDK
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RUN cd ${EMSDK} \
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&& echo "## Generate standard configuration" \
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\
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&& ./emsdk activate ${EMSCRIPTEN_VERSION} --embedded \
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&& ./emsdk construct_env > /dev/null \
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&& cat ${EMSDK}/emsdk_set_env.sh \
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\
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# remove wrongly created entry with EM_CACHE, variable will be picked up from ENV
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&& sed -i -e "/EM_CACHE/d" ${EMSDK}/emsdk_set_env.sh \
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# add a link to tools like asm2wasm in a system path
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# asm2wasm (and friends might be places either in ./upstream of ./fastcomp folder, hence detection is needed)
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&& printf "export PATH=$(dirname $(find . -name asm2wasm -exec readlink -f {} +)):\$PATH\n" >> ${EMSDK}/emsdk_set_env.sh \
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\
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&& echo "## Done"
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# Create a structure and make mutable folders accessible for r/w
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RUN cd ${EMSDK} \
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&& echo "## Create .data structure" \
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&& for mutable_dir in ${EM_DATA} ${EM_PORTS} ${EM_CACHE} ${EMSDK}/zips ${EMSDK}/tmp; do \
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mkdir -p ${mutable_dir}; \
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chmod -R 777 ${mutable_dir}; \
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done \
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\
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&& echo "## Done"
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# Create an entrypoint that activates Emscripten SDK and helps running this image as non-root user
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COPY entrypoint ${EMSDK}/
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# Create symbolic links for critical Emscripten Tools
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# This is important for letting people using Emscripten in Dockerfiles without activation
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# As each Emscripten release is placed to a different folder (i.e. /emsdk/emscripten/tag-1.38.31)
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RUN echo "## Create symbolic links" \
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&& . ${EMSDK}/emsdk_set_env.sh \
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\
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&& mkdir -p ${EMSDK}/llvm ${EMSDK}/emscripten ${EMSDK}/binaryen \
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\
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&& ln -s $(dirname $(which node))/.. ${EMSDK}/node/current \
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&& ln -s $(dirname $(which clang))/.. ${EMSDK}/llvm/clang \
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&& ln -s $(dirname $(which emcc)) ${EMSDK}/emscripten/sdk \
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\
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&& ln -s $(dirname $(which asm2wasm)) ${EMSDK}/binaryen/bin \
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\
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&& echo "## Done"
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# Clean up emscripten installation and strip some symbols
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RUN echo "## Aggresive optimization: Remove debug symbols" \
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&& apt-get -qq -y update && apt-get -qq install -y --no-install-recommends \
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binutils \
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&& . ${EMSDK}/emsdk_set_env.sh \
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# Remove debugging symbols from embedded node (extra 7MB)
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&& strip -s `which node` \
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# Tests consume ~80MB disc space
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&& rm -fr ${EMSDK}/llvm/clang/emscripten/tests \
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# strip out symbols from clang (~extra 50MB disc space)
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&& find ${EMSDK}/llvm/clang/bin -type f -exec strip -s {} + || true \
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&& find ${EMSDK}/llvm/clang/fastcomp/bin -type f -exec strip -s {} + || true \
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&& echo "## Done"
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# Populate Emscripten SDK cache with libc++, to improve further compilation times.
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RUN echo "## Pre-populate cache" \
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&& . ${EMSDK}/emsdk_set_env.sh \
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\
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&& embuilder.py build SYSTEM \
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\
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&& mkdir -p /tmp/emscripten_test \
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&& cd /tmp/emscripten_test \
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\
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&& printf '#include <iostream>\nint main(){std::cout << "HELLO FROM DOCKER C++"<<std::endl;return 0;}' > test.cpp \
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&& em++ --std=c++11 test.cpp -o test.js -s WASM=0 && node test.js \
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&& em++ --std=c++11 -g3 test.cpp -o test.js -s WASM=0 && node test.js \
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&& em++ --std=c++11 test.cpp -o test.js -s WASM=1 && node test.js \
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\
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&& cd / \
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&& rm -fr /tmp/emscripten_test \
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\
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# some files were created, and we need to make sure that those can be accessed by non-root people
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&& chmod -R 777 ${EM_DATA} \
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\
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# cleanup
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&& find ${EMSDK} -name "*.pyc" -exec rm {} \; \
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\
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&& echo "## Done"
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# ------------------------------------------------------------------------------
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# -------------------------------- STAGE DEPLOY --------------------------------
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# ------------------------------------------------------------------------------
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FROM debian:buster-slim AS stage_deploy
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COPY --from=stage_build /emsdk /emsdk
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# Fallback in case Emscripten isn't activated.
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# This will let use tools offered by this image inside other Docker images (sub-stages) or with custom / no entrypoint
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ENV EMSDK /emsdk
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ENV EMSCRIPTEN=${EMSDK}/emscripten/sdk
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ENV EM_DATA ${EMSDK}/.data
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ENV EM_CONFIG ${EMSDK}/.emscripten
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ENV EM_CACHE ${EM_DATA}/cache
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ENV EM_PORTS ${EM_DATA}/ports
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# Fallback in case Emscripten isn't activated
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# Expose Major tools to system PATH, so that emcc, node, asm2wasm etc can be used without activation
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ENV PATH="${EMSDK}:${EMSDK}/emscripten/sdk:${EMSDK}/llvm/clang/bin:${EMSDK}/node/current/bin:${EMSDK}/binaryen/bin:${PATH}"
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# Use entrypoint that's coming from emscripten-slim image. It sets all required system paths and variables
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ENTRYPOINT ["/emsdk/entrypoint"]
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# ------------------------------------------------------------------------------
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# Create a 'standard` 1000:1000 user
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# Thanks to that this image can be executed as non-root user and created files will not require root access level on host machine
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# Please note that this solution even if widely spread (i.e. Node.js uses it) is far from perfect as user 1000:1000 might not exist on
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# host machine, and in this case running any docker image will cause other random problems (mostly due `$HOME` pointing to `/`)
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# This extra user works nicely with entrypoint provided in `/emsdk/entrypoint` as it detects case explained before.
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RUN echo "## Create emscripten user (1000:1000)" \
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&& groupadd --gid 1000 emscripten \
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&& useradd --uid 1000 --gid emscripten --shell /bin/bash --create-home emscripten \
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\
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&& echo "## Done"
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# ------------------------------------------------------------------------------
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RUN echo "## Update and install packages" \
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# mitigate problem with create symlink to man for base debian image
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&& mkdir -p /usr/share/man/man1/ \
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\
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&& apt-get -qq -y update && apt-get -qq install -y --no-install-recommends \
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libxml2 \
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ca-certificates \
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python \
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python3 \
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python-pip \
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python3-pip \
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wget \
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curl \
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zip \
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unzip \
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git \
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ssh-client \
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build-essential \
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make \
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ant \
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libidn11 \
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cmake \
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openjdk-11-jre-headless \
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\
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# Standard Cleanup on Debian images
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&& apt-get -y clean \
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&& apt-get -y autoclean \
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&& apt-get -y autoremove \
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&& rm -rf /var/lib/apt/lists/* \
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&& rm -rf /var/cache/debconf/*-old \
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&& rm -rf /usr/share/doc/* \
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&& rm -rf /usr/share/man/?? \
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&& rm -rf /usr/share/man/??_* \
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&& echo "## Done"
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# ------------------------------------------------------------------------------
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# Internal test suite of tools that this image provides
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COPY test_dockerimage.sh ${EMSDK}/
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RUN echo "## Internal Testing of image (activated)" \
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&& . ${EMSDK}/emsdk_set_env.sh \
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&& ${EMSDK}/test_dockerimage.sh \
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\
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&& echo "## Done"
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RUN echo "## Internal Testing of image (not-activated)" \
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&& ${EMSDK}/test_dockerimage.sh \
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\
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&& echo "## Done"
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# ------------------------------------------------------------------------------
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# Copy this Dockerimage into image, so that it will be possible to recreate it later
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COPY Dockerfile /emsdk/dockerfiles/emscripten-core/emsdk/
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LABEL maintainer="kontakt@trzeci.eu" \
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org.label-schema.name="emscripten" \
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org.label-schema.description="The official container with Emscripten SDK" \
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org.label-schema.url="https://emscripten.org" \
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org.label-schema.vcs-url="https://github.com/emscripten-core/emsdk" \
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org.label-schema.docker.dockerfile="/docker/Dockerfile"
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# ------------------------------------------------------------------------------
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