# syntax=docker/dockerfile:1

# ── Build stage ───────────────────────────────────────────────────────────────
FROM golang:1.26-bookworm AS builder

ARG VERSION=dev
WORKDIR /src

COPY go.mod go.sum ./
RUN go mod download

COPY . .
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
    go build -trimpath -ldflags="-s -w -X main.version=${VERSION}" \
    -o /out/routing ./cmd/routing

# ── Runtime stage ─────────────────────────────────────────────────────────────
FROM gcr.io/distroless/base-debian12

COPY --from=builder /out/routing /usr/local/bin/routing
COPY config/ /app/config/

ENV SUPERVISOR_CONFIG_DIR=/app/config/supervisor
ENV ROUTING_PORT=3210

EXPOSE 3210

USER 65532:65532

ENTRYPOINT ["/usr/local/bin/routing"]