FROM caddy:2.9-builder@sha256:b498d7800b72667c072267e135e1f64ea4d2f2b80a90b008d82df3938f3239e1 AS builder

RUN xcaddy build \
    --with github.com/caddy-dns/rfc2136@master

FROM caddy:alpine@sha256:e97e0e3f8f51be708a9d5fadbbd75e3398c22fc0eecd4b26d48561e3f7daa9eb

COPY --from=builder /usr/bin/caddy /usr/bin/caddy