Update Dockerfile to use system libraries and manually strip binaries to avoid 14GB image layers

Author: tianon

Dockerfile

@@ -2,15 +2,36 @@ FROM debian:jessie
 
 RUN apt-get update && apt-get install -y build-essential scons libssl-dev
 
+# "--use-system" deps
+RUN apt-get update && apt-get install -y \
+		libboost-dev \
+		libboost-filesystem-dev \
+		libboost-program-options-dev \
+		libboost-thread-dev \
+		libgoogle-perftools-dev \
+		libpcap-dev \
+		libpcre++-dev \
+		libsnappy-dev \
+		libstemmer-dev \
+		libv8-dev
+ENV SCONS_OPTS --use-system-snappy --use-system-tcmalloc --use-system-pcre --use-system-boost --use-system-v8 --ssl
+
 ADD . /usr/src/mongo
 WORKDIR /usr/src/mongo
 
-RUN scons -j"$(nproc)" core tools
+# the unstripped binaries and build artifacts are enormous, so we strip and
+# remove them manually to help alleviate that huge layer being an issue
+RUN scons -j"$(nproc)" $SCONS_OPTS core tools \
+	&& find -maxdepth 1 -type f -executable -exec strip '{}' + \
+	&& rm -rf build
 
 # the tests compile huge amounts of data, so we skip them for now
-#RUN scons test
+#RUN scons $SCONS_OPTS test
 
-RUN scons install
+# since we're stripping and removing build artifacts, we get to install
+# manually too (since scons rightfully thinks we need to rebuild)
+#RUN scons $SCONS_OPTS install
+RUN find -maxdepth 1 -type f -executable -exec ln -v '{}' /usr/local/bin/ ';'
 
 VOLUME /data/db