Dockerfile

# syntax = docker/dockerfile:experimental
#
# NOTE: To build this you will need a docker version > 18.06 with
# experimental enabled and DOCKER_BUILDKIT=1
#
# If you do not use buildkit you are not going to have a good time
#
# For reference:
# https://docs.docker.com/develop/develop-images/build_enhancements/
ARG BASE_IMAGE=ubuntu:18.04
ARG PYTHON_VERSION=3.8

FROM ${BASE_IMAGE} as dev-base
RUN --mount=type=cache,id=apt-dev,target=/var/cache/apt \
 apt-get update && apt-get install -y --no-install-recommends \
 build-essential \
 ca-certificates \
 ccache \
 cmake \
 curl \
 git \
 libjpeg-dev \
 libpng-dev && \
 rm -rf /var/lib/apt/lists/*
RUN /usr/sbin/update-ccache-symlinks
RUN mkdir /opt/ccache && ccache --set-config=cache_dir=/opt/ccache
ENV PATH /opt/conda/bin:$PATH

FROM dev-base as conda
ARG PYTHON_VERSION=3.8
RUN curl -fsSL -v -o ~/miniconda.sh -O https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh && \
 chmod +x ~/miniconda.sh && \
 ~/miniconda.sh -b -p /opt/conda && \
 rm ~/miniconda.sh && \
 /opt/conda/bin/conda install -y python=${PYTHON_VERSION} conda-build pyyaml numpy ipython&& \
 /opt/conda/bin/conda clean -ya

FROM dev-base as submodule-update
WORKDIR /opt/pytorch
COPY . .
RUN git submodule update --init --recursive

FROM conda as build
WORKDIR /opt/pytorch
COPY --from=conda /opt/conda /opt/conda
COPY --from=submodule-update /opt/pytorch /opt/pytorch
RUN --mount=type=cache,target=/opt/ccache \
 TORCH_CUDA_ARCH_LIST="3.5 5.2 6.0 6.1 7.0+PTX 8.0" TORCH_NVCC_FLAGS="-Xfatbin -compress-all" \
 CMAKE_PREFIX_PATH="$(dirname $(which conda))/../" \
 python setup.py install

FROM conda as conda-installs
ARG PYTHON_VERSION=3.8
ARG CUDA_VERSION=11.1
ARG CUDA_CHANNEL=nvidia
ARG INSTALL_CHANNEL=pytorch-nightly
ENV CONDA_OVERRIDE_CUDA=${CUDA_VERSION}
RUN /opt/conda/bin/conda install -c "${INSTALL_CHANNEL}" -c "${CUDA_CHANNEL}" -y python=${PYTHON_VERSION} pytorch torchvision torchtext "cudatoolkit=${CUDA_VERSION}" && \
 /opt/conda/bin/conda clean -ya
RUN /opt/conda/bin/pip install torchelastic

FROM ${BASE_IMAGE} as official
ARG PYTORCH_VERSION
LABEL com.nvidia.volumes.needed="nvidia_driver"
RUN --mount=type=cache,id=apt-final,target=/var/cache/apt \
 apt-get update && apt-get install -y --no-install-recommends \
 ca-certificates \
 libjpeg-dev \
 libpng-dev && \
 rm -rf /var/lib/apt/lists/*
COPY --from=conda-installs /opt/conda /opt/conda
ENV PATH /opt/conda/bin:$PATH
ENV NVIDIA_VISIBLE_DEVICES all
ENV NVIDIA_DRIVER_CAPABILITIES compute,utility
ENV LD_LIBRARY_PATH /usr/local/nvidia/lib:/usr/local/nvidia/lib64
ENV PYTORCH_VERSION ${PYTORCH_VERSION}
WORKDIR /workspace

FROM official as dev
# Should override the already installed version from the official-image stage
COPY --from=build /opt/conda /opt/conda