# Build-Stage: statisches Binary, CGO aus (modernc.org/sqlite ist pures Go).
FROM docker.io/library/golang:1.26-alpine AS build
WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY *.go ./
RUN CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o /kver .

# Laufzeit-Stage: minimales Alpine, eigener unprivilegierter Nutzer.
FROM docker.io/library/alpine:3.22
RUN adduser -D -u 1000 kver
WORKDIR /app
COPY --from=build /kver /usr/local/bin/kver
COPY web/ web/
COPY static/ static/
# data: SQLite-DB; static/media: Uploads. Beide als Volume persistieren.
RUN mkdir -p data static/media && chown kver:kver data static/media
USER kver
ENV KVER_DB=/app/data/kver.db
ENV KVER_ADDR=:8080
EXPOSE 8080
VOLUME ["/app/data", "/app/static/media"]
HEALTHCHECK --interval=30s --timeout=3s \
  CMD wget -qO /dev/null http://localhost:8080/entry/feed/0 || exit 1
ENTRYPOINT ["/usr/local/bin/kver"]
