# --- Build stage ---
FROM docker.io/library/golang:1.25-alpine AS build

RUN apk add --no-cache gcc musl-dev

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

COPY . .
RUN CGO_ENABLED=1 go build \
    -ldflags='-s -w -extldflags "-static"' \
    -tags 'netgo,osusergo' \
    -trimpath \
    -o /horchposten .

# --- Runtime stage ---
FROM scratch

COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=build /horchposten /horchposten

EXPOSE 8080
VOLUME /data

ENV DB_PATH=/data/analytics.db
ENV ADDR=:8080

ENTRYPOINT ["/horchposten"]