FROM golang:1.27-alpine AS build
WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o /out/gharp ./cmd/gharp

FROM alpine:3.24 AS runtime
RUN apk upgrade --no-cache && apk add --no-cache ca-certificates docker-cli
COPY --from=build /out/gharp /usr/local/bin/gharp
EXPOSE 8080
# Persist sqlite under /data by default; mount a volume there to survive restarts.
ENV STORE_DSN="file:/data/gharp.db?_pragma=journal_mode(WAL)"
VOLUME ["/data"]
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD wget -q -O- http://localhost:8080/healthz || exit 1
ENTRYPOINT ["/usr/local/bin/gharp"]