Spike with btrfs 4.7.3

Dockerfile

# RUN apt-get install -y uidmap btrfs-tools sudo
RUN apt-get update
RUN apt-get install -y uidmap wget sudo liblzo2-dev libblkid-dev e2fslibs-dev pkg-config libz-dev curl

RUN wget https://www.kernel.org/pub/linux/kernel/people/kdave/btrfs-progs/btrfs-progs-v4.7.3.tar.xz && \
	tar xf btrfs-progs-v4.7.3.tar.xz && \
	cd btrfs-progs-v4.7.3 && \
	./configure --disable-documentation && \
	make static && make install-static && \
	files=$(ls *.static) && \
	for file in $files; do mv $file /usr/local/bin/${file%.static}; done