FROM docker.io/matrixdotorg/base-caddy ENV UID=1337 \ GID=1337 RUN apk add --no-cache \ su-exec \ s6 \ ca-certificates \ bash ADD root / EXPOSE 2015 80 443 VOLUME ["/etc/caddy", "/var/www"] CMD ["/bin/s6-svscan", "/etc/s6.d/"]