# Etap 1: budowanie binarki Go
FROM golang:1.23-alpine AS builder

WORKDIR /build
COPY go.mod go.sum ./
RUN go mod download

COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -o server ./cmd/server

# Etap 2: minimalny obraz produkcyjny
FROM alpine:3.20

RUN apk add --no-cache ca-certificates tzdata

WORKDIR /app
COPY --from=builder /build/server .

EXPOSE 8080
CMD ["./server"]