ARG CADDY_VERSION=2.11.4 ARG CADDY_RATELIMIT_VERSION=v0.1.0 FROM caddy:${CADDY_VERSION}-builder AS builder ARG CADDY_RATELIMIT_VERSION RUN xcaddy build \ --with github.com/mholt/caddy-ratelimit@${CADDY_RATELIMIT_VERSION} FROM caddy:${CADDY_VERSION}-alpine COPY --from=builder /usr/bin/caddy /usr/bin/caddy