Dockerfile changes

os161-container/Dockerfile

@@ -74,7 +74,9 @@ RUN rm -rf /os161-gdb /os161-gdb.tar.gz
 RUN cd /os161/tools/bin && sh -c 'for i in mips-*; do ln -s /os161/tools/bin/$i /os161/tools/bin/cs350-`echo $i | cut -d- -f4-`; done'
 
 RUN python3 -m pip install -U prettytable
+RUN apt update && apt install sudo
 COPY evaluate.py /evalaute
+RUN useradd -ms /usr/sbin/nologin user
 COPY helpers.sh /helpers.sh
 RUN echo "source /helpers.sh" >> ~/.bashrc
 COPY run_assignment.sh /run_assignment.sh

os161-container/helpers.sh

@@ -24,6 +24,7 @@ build_k_helper() {
 	cd $OS161_DIR
 	mkdir /os-compile 2> /dev/null
 	cp -r /kernel/kern/* $OS161_DIR/kern/
+	rm -rf $OS161_DIR/kern/compile 2> /dev/null
 	set -e
 	# Configure - step 1
 	echo "[CS350] $1 Configuring Kernel..."