ARG CADDY_VERSION=2.9.1 FROM caddy:${CADDY_VERSION}-builder AS builder RUN xcaddy build \ --with github.com/lucaslorentz/caddy-docker-proxy/v2 \ --with github.com/caddy-dns/cloudflare \ --with github.com/caddy-dns/route53 FROM caddy:${CADDY_VERSION}-alpine COPY --from=builder /usr/bin/caddy /usr/bin/caddy CMD ["caddy", "docker-proxy"]