+# Get Go and build singularity
+mkdir -p /var/lib/arvados
+rm -rf /var/lib/arvados/go/
+curl -s https://storage.googleapis.com/golang/go${GOVERSION}.linux-amd64.tar.gz | tar -C /var/lib/arvados -xzf -
+ln -sf /var/lib/arvados/go/bin/* /usr/local/bin/
+
+singularityversion=3.10.4
+cd /var/lib/arvados
+git clone --recurse-submodules https://github.com/sylabs/singularity
+cd singularity
+git checkout v${singularityversion}
+
+# build dependencies for singularity
+wait_for_apt_locks && $SUDO DEBIAN_FRONTEND=noninteractive apt-get -qq --yes install \
+ make build-essential libssl-dev uuid-dev cryptsetup \
+ squashfs-tools libglib2.0-dev libseccomp-dev
+
+
+echo $singularityversion > VERSION
+./mconfig --prefix=/var/lib/arvados
+make -C ./builddir
+make -C ./builddir install
+ln -sf /var/lib/arvados/bin/* /usr/local/bin/
+
+# set `mksquashfs mem` in the singularity config file if it is configured
+if [ "$MKSQUASHFS_MEM" != "" ]; then
+ echo "mksquashfs mem = ${MKSQUASHFS_MEM}" >> /var/lib/arvados/etc/singularity/singularity.conf
+fi
+
+# Print singularity version installed
+singularity --version
+