Update Dockerfile (#157)

Author: cwlacewe

docker/base/Dockerfile

@@ -64,11 +64,12 @@ RUN git clone --branch v3.21.2 https://github.com/Kitware/CMake.git && \
 
 
 # VDMS
-RUN git clone https://github.com/IntelLabs/vdms.git && cd vdms && \
+WORKDIR /vdms
+RUN git clone https://github.com/IntelLabs/vdms.git /vdms && cd /vdms && \
     git checkout develop && git submodule update --init --recursive && \
     mkdir build && cd build && cmake .. && make ${BUILD_THREADS} && \
     cp /vdms/config-vdms.json /vdms/build/ && \
     echo '#!/bin/bash' > /start.sh && echo 'cd /vdms/build' >> /start.sh && \
     echo './vdms' >> /start.sh && chmod 755 /start.sh
 
-CMD ["/start.sh"]
+CMD ["/start.sh"]