# Stage 1: Build
FROM golang:alpine AS builder
WORKDIR /app
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -o server .

# Stage 2: Run
FROM alpine:latest
RUN apk --no-cache add tzdata ca-certificates
WORKDIR /app
COPY --from=builder /app/server .
EXPOSE 8080
CMD ["./server"]