# Use the official Caddy builder
FROM caddy:builder-alpine AS builder

# Build Caddy with the Layer 4 module included
RUN xcaddy build \
    --with github.com/mholt/caddy-l4 \
    --with github.com/caddyserver/jsonc-adapter

# Pull the compiled binary into the final lightweight image
FROM caddy:alpine
COPY --from=builder /usr/bin/caddy /usr/bin/caddy