  
      mkdir /tmp/opencv_build && \
      cd /tmp/opencv_build && \
  
      wget https://github.com/opencv/opencv/archive/${OPENCV_VERSION}.tar.gz && \
      tar -xvf ${OPENCV_VERSION}.tar.gz && \
      mv opencv-${OPENCV_VERSION} OpenCV && \
      cd OpenCV && mkdir build && cd build && \
      cmake -DWITH_OPENGL=ON -DFORCE_VTK=ON -DWITH_TBB=ON -DWITH_GDAL=ON \
            -DWITH_XINE=ON -DENABLE_PRECOMPILED_HEADERS=OFF .. && \
 
</s> remove     cd /tmp && rm -rf /tmp/opencv_build
 </s> add     cd / && rm -rf /tmp/* </s> remove     pip uninstall -y pipenv
 </s> add     rm -rf /tmp/* && \
    rm -rf /root/.cache && \
    pip uninstall -y pipenv && \ </s> remove     rm -rf /tmp/* && \
 </s> add  </s> remove     wget https://raw.githubusercontent.com/commaai/eon-neos-builder/master/devices/eon/home/.tmux.conf
 </s> add     curl -O https://raw.githubusercontent.com/commaai/eon-neos-builder/master/devices/eon/home/.tmux.conf
    curl -L -O https://github.com/opencv/opencv/archive/${OPENCV_VERSION}.tar.gz && \
  
      mkdir /tmp/opencv_build && \
      cd /tmp/opencv_build && \
  
    curl -L -O https://github.com/opencv/opencv/archive/${OPENCV_VERSION}.tar.gz && \
      tar -xvf ${OPENCV_VERSION}.tar.gz && \
      mv opencv-${OPENCV_VERSION} OpenCV && \
      cd OpenCV && mkdir build && cd build && \
      cmake -DWITH_OPENGL=ON -DFORCE_VTK=ON -DWITH_TBB=ON -DWITH_GDAL=ON \
            -DWITH_XINE=ON -DENABLE_PRECOMPILED_HEADERS=OFF .. && \
keep keep keep keep replace keep keep keep keep keep
 smaller docker image (#23469)

* save 2gb

* not used

* more cleanup

* little more

* wget too big

* follow

* needed for sim 
tools/webcam/Dockerfile