# 自定义 Caddy：编入 Cloudflare DNS 插件，用 ACME DNS-01 签证书
# （DNS-01 无需开放 80 端口，且家宽封 80/443 时仍可签发）
FROM caddy:2-builder AS builder
RUN xcaddy build \
    --with github.com/caddy-dns/cloudflare

FROM caddy:2-alpine
COPY --from=builder /usr/bin/caddy /usr/bin/caddy
