# ---- build ----
FROM golang:1.24 AS build
WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" -o /out/vindn-backend ./cmd/server

# ---- runtime ----
# "static" (not "-nonroot") to match the existing root:root ownership of the
# bind-mounted ./backend/public/storage host directory shared with the
# frontend container — switching to a non-root UID here would need that
# directory rechowned too, or every media download starts failing silently.
FROM gcr.io/distroless/static-debian12

# The imported event data and the site's audience are both German-local;
# default to that instead of UTC so the twice-daily cron (see tasks/Cronjob.go)
# actually fires at 06:00/18:00 German time, not UTC. distroless/static ships
# tzdata, but time/tzdata is also embedded in the binary above for safety.
ENV TZ=Europe/Berlin

WORKDIR /app
COPY --from=build /out/vindn-backend ./vindn-backend

EXPOSE 8080
ENTRYPOINT ["./vindn-backend"]