# --- build stage -----------------------------------------------------------
FROM golang:1.23-alpine AS build
WORKDIR /src
COPY go.mod ./
COPY *.go ./
RUN CGO_ENABLED=0 go build -ldflags="-s -w" -o /backend .

# --- runtime stage ---------------------------------------------------------
FROM alpine:latest
RUN mkdir -p /data && adduser -D -u 1000 app && chown app:app /data
USER app
COPY --from=build /backend /backend
EXPOSE 8080
VOLUME ["/data"]
CMD ["/backend"]