content: # Install Horovod
  ARG HOROVOD_WITHOUT_PYTORCH=1
  ARG HOROVOD_WITHOUT_MXNET=1
  ARG HOROVOD_WITH_TENSORFLOW=1
  ARG HOROVOD_VERSION=v0.21.1
  
  ENV LC_ALL=en_US.UTF-8
  ENV LC_CTYPE=en_US.UTF-8
  
  RUN yum update -y && \
      yum install -y centos-release-scl && \
      yum install -y \
          devtoolset-8 \
          devtoolset-8-make \
          llvm-toolset-7-cmake \
          ${PYTHON}-devel \
          sclo-git25 && \
      yum clean all
  
  ENV PATH=/opt/rh/devtoolset-8/root/usr/bin:/opt/rh/sclo-git25/root/usr/bin:/opt/rh/llvm-toolset-7/root/usr/bin:${PATH}
  
  RUN ${PYTHON} -m pip install git+https://github.com/horovod/horovod.git@${HOROVOD_VERSION}
  