docker: add cleanup script for ns-3

Add a cleanup script for ns-3 similar to those for qemu and gem5.

This solves #9.

docker/Dockerfile.base

@@ -11,7 +11,8 @@ RUN git submodule update --init sims/external/gem5 \
 RUN git submodule update --init sims/external/femu \
  && make -j `nproc` sims/external/femu/ready
 RUN git submodule update --init sims/external/ns-3 \
- && make -j `nproc` sims/external/ns-3/ready
+ && make -j `nproc` sims/external/ns-3/ready \
+ && bash docker/cleanup_ns3.sh
 ENV PYTHONPATH=/simbricks/experiments
 RUN sudo cp docker/simbricks-run /usr/bin/ \
  && sudo chmod 755 /usr/bin/simbricks-run

docker/cleanup_ns3.sh

+#!/bin/bash
+set -e
+
+mkdir -p sims/external/ns-3-new/
+cd sims/external/ns-3
+find build -name '*.o' -delete
+cp -r \
+  build/ \
+  cosim-run.sh \
+  cosim-dctcp-run.sh \
+  ../ns-3-new/
+cd ..
+git submodule deinit -f ns-3
+rm -rf ../../.git/modules/sims/external/ns-3
+rm -rf ns-3
+mv ns-3-new ns-3
+touch ns-3/ready