FROM golang:1.22-alpine AS builder
WORKDIR /app
COPY go.mod .
COPY main.go .
RUN go build -o chu-analyzer .

FROM alpine:latest
RUN apk --no-cache add ca-certificates tzdata
RUN mkdir -p /data
WORKDIR /app
COPY --from=builder /app/chu-analyzer /usr/local/bin/chu-analyzer
ENTRYPOINT ["chu-analyzer"]