IMAGE build
LAYER shared/alpine3.9
COPY https://github.com/gliderlabs/docker-alpine/raw/rootfs/library-3.9/x86_64/versions/library-3.9/x86_64/rootfs.tar.xz

COPY lxc

RUN EOF
    # Update packages
    apk --no-cache upgrade

    # Install s6 supervisor
    apk --no-cache add libxml2 libxslt s6
EOF