# --- Stage 1: builder ---
FROM golang:1.25 AS builder
WORKDIR /app
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 go build -o main ./cmd/main.go

# --- Stage 2: Runner ---
FROM alpine:latest
WORKDIR /app
COPY --from=builder /app/main .
EXPOSE 3000
CMD ["./main"]