FROM alpine:3.8 LABEL maintainer="Sebastian Hugentobler " ENV S6_OVERLAY_VERSION=v1.21.4.0 RUN apk --no-cache add libressl syslog-ng incron && \ wget -qO- https://github.com/just-containers/s6-overlay/releases/download/$S6_OVERLAY_VERSION/s6-overlay-amd64.tar.gz | tar -xz -C / && \ apk del libressl RUN apk --no-cache upgrade ADD /rootfs / ENTRYPOINT ["/init"]