Blimp engine Dockerfile now depends on Dockerfile.base.

blimp/engine/Dockerfile

-FROM ubuntu:trusty
+FROM base:latest
 
-# Run the command below to update the lib list.
-# ldd ./blimp_engine_app | grep usr/lib | awk '{print $3}' | xargs -n1 \
-#   dpkg-query -S | awk -F: '{print $1}' | sort | uniq
-RUN apt-get update && \
-  apt-get install -yq libdrm2 libfontconfig1 libfreetype6 libgraphite2-3 \
-  libharfbuzz0b libnspr4 libnss3 libstdc++6
-
-# stunnel4 is needed for incoming TLS connections.
-# wget is needed for crash reporting.
-RUN apt-get update && apt-get install -yq stunnel4 wget
-
-# gdb and strace are not strictly required, but having them around makes
-# debugging easier.
-RUN apt-get update && apt-get install -yq gdb strace
-
 RUN mkdir /engine
 
 RUN useradd -ms /bin/bash blimp_user
 
 # The glob below expands to all files, but does not add directories
 # recursively.
 ADD * /engine/
 ADD gen/third_party/blimp_fonts /engine/fonts
 RUN mv /engine/chrome_sandbox /engine/chrome-sandbox
 RUN chown -R blimp_user /engine
 
 USER blimp_user
 WORKDIR "/engine"
 
 ENTRYPOINT ["/engine/start_engine.sh"]