| # Copyright 2020 Google LLC | 
 | # | 
 | # Licensed under the Apache License, Version 2.0 (the "License"); | 
 | # you may not use this file except in compliance with the License. | 
 | # You may obtain a copy of the License at | 
 | # | 
 | #      https://www.apache.org/licenses/LICENSE-2.0 | 
 | # | 
 | # Unless required by applicable law or agreed to in writing, software | 
 | # distributed under the License is distributed on an "AS IS" BASIS, | 
 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
 | # See the License for the specific language governing permissions and | 
 | # limitations under the License. | 
 |  | 
 | # An image for building IREE in RBE's remmote execution environments. | 
 | # The parent image requires gcloud authorization to download (run | 
 | # `gcloud auth configure-docker`) | 
 |  | 
 | # Note that this doesn't reuse anything from our other docker images because it | 
 | # is based on Ubuntu 16.04, which is the only image that RBE provides toolchains | 
 | # for. There are also Ubuntu 18.04 images, but we'd have to construct all our | 
 | # own toolchains. | 
 |  | 
 | ######################## Install Swiftshader ################################### | 
 | # Ubuntu 16.04 | 
 | FROM ubuntu@sha256:3355b6e4ba1b12071ba5fe9742042a2f10b257c908fbdfac81912a16eb463879 AS install-swiftshader | 
 | WORKDIR /install-swiftshader | 
 |  | 
 | RUN apt-get update && apt-get install -y wget | 
 |  | 
 | ARG CMAKE_VERSION=3.13.5 | 
 | # Install CMake v3.13, which is ahead of apt-get's version (3.10.2). | 
 | RUN wget "https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION?}/cmake-${CMAKE_VERSION?}-Linux-x86_64.sh" \ | 
 |   && chmod +x "./cmake-${CMAKE_VERSION?}-Linux-x86_64.sh" \ | 
 |   && "./cmake-${CMAKE_VERSION?}-Linux-x86_64.sh" --skip-license --prefix=/usr/ \ | 
 |   && rm "./cmake-${CMAKE_VERSION?}-Linux-x86_64.sh" | 
 |  | 
 | RUN apt-get update && apt-get install -y \ | 
 |   clang \ | 
 |   git \ | 
 |   ninja-build \ | 
 |   python3 \ | 
 |   zlib1g-dev | 
 |  | 
 | # This commit fixed support for the max version of libstdc++6 available through | 
 | # Ubuntu 16.04 apt. | 
 | ARG SWIFTSHADER_COMMIT=6287c18b1d249152563f0cb2d5cb0c6d0eb9e3d6 | 
 |  | 
 | RUN git clone https://github.com/google/swiftshader | 
 | RUN cd swiftshader && git checkout "${SWIFTSHADER_COMMIT?}" && cd .. | 
 | # Only build SwiftShader Vulkan ICD. | 
 | RUN cmake -S swiftshader/ -B build-swiftshader/ \ | 
 |   -GNinja \ | 
 |   -DSWIFTSHADER_BUILD_VULKAN=ON \ | 
 |   -DSWIFTSHADER_BUILD_EGL=OFF \ | 
 |   -DSWIFTSHADER_BUILD_GLESv2=OFF \ | 
 |   -DSWIFTSHADER_BUILD_GLES_CM=OFF \ | 
 |   -DSWIFTSHADER_BUILD_PVR=OFF \ | 
 |   -DSWIFTSHADER_BUILD_TESTS=OFF | 
 | RUN cmake --build build-swiftshader/ \ | 
 |   --config Release \ | 
 |   --target vk_swiftshader | 
 |  | 
 | # Copy the ICD JSON and .so to a known place. | 
 | RUN cp -rf build-swiftshader/Linux /swiftshader | 
 | # Keep track of the commit we are using. | 
 | RUN echo "${SWIFTSHADER_COMMIT?}" > /swiftshader/git-commit | 
 |  | 
 |  | 
 |  | 
 | ######################## Final Image ########################################### | 
 | FROM gcr.io/cloud-marketplace/google/rbe-ubuntu16-04@sha256:1a8ed713f40267bb51fe17de012fa631a20c52df818ccb317aaed2ee068dfc61 AS final | 
 |  | 
 | ######################## Python 3 ############################################## | 
 | RUN apt-get update \ | 
 |   && apt-get install -y \ | 
 |     python3 \ | 
 |     python3-pip \ | 
 |   && python3 -m pip install --upgrade pip \ | 
 |   && python3 -m pip install numpy | 
 |  | 
 | ######################## Vulkan SDK ############################################ | 
 |  | 
 | ARG VULKAN_SDK_VERSION=1.2.154.0 | 
 |  | 
 | COPY --from=gcr.io/iree-oss/vulkan@sha256:5812ee64806a7f3df0739ccf0930c27cabce346901488eceb1ee66c9c0a5ae96 /opt/vulkan-sdk/ /opt/vulkan-sdk/ | 
 |  | 
 | ENV VULKAN_SDK="/opt/vulkan-sdk/${VULKAN_SDK_VERSION}/x86_64" | 
 |  | 
 | ENV PATH="${VULKAN_SDK}/bin:$PATH" | 
 |  | 
 | # Symlink the Vulkan loader to a system library directory. This is needed to | 
 | # allow Vulkan applications to find the Vulkan loader. It also avoids using | 
 | # LD_LIBRARY_PATH, which is not supported well by Docker. | 
 | RUN ln -s "${VULKAN_SDK}/lib/libvulkan.so" /usr/lib/x86_64-linux-gnu/ \ | 
 |   && ln -s "${VULKAN_SDK}/lib/libvulkan.so.1" /usr/lib/x86_64-linux-gnu/ | 
 |  | 
 | ######################## Swiftshader ########################################### | 
 | COPY --from=install-swiftshader /swiftshader /swiftshader | 
 | # Set VK_ICD_FILENAMES so Vulkan loader can find the SwiftShader ICD. | 
 | ENV VK_ICD_FILENAMES /swiftshader/vk_swiftshader_icd.json | 
 |  | 
 | RUN apt-get update && apt-get install -y software-properties-common | 
 |  | 
 | # apt-add-repository requires a version of python with the softwareproperties | 
 | # module. To use this command, we: | 
 | #   1. remove the symlink to python3 from python3.6 and symlink it to python3.5 | 
 | #   2. run apt-add-repository with python3 = python3.5 | 
 | #   3. resymlink python3 to /opt/python3.6/bin/python3.6 | 
 | # See https://github.com/google/iree/issues/1966 for more information. | 
 | RUN rm /usr/bin/python3 \ | 
 |   && ln -s /usr/bin/python3.5 /usr/bin/python3 \ | 
 |   && add-apt-repository ppa:deadsnakes/ppa \ | 
 |   && rm /usr/bin/python3 \ | 
 |   && ln -s /opt/python3.6/bin/python3.6 /usr/bin/python3 | 
 |  | 
 | # Install python3.6-dev | 
 | RUN apt-get update \ | 
 |   && apt-get install -y python3.6 python3.6-dev |