# Build stage
FROM golang:1.22-alpine AS builder
WORKDIR /app
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -o api-gateway .

# Runtime stage
FROM alpine:3.20
RUN apk --no-cache add ca-certificates
WORKDIR /app
COPY --from=builder /app/api-gateway .
EXPOSE 8080
CMD ["./api-gateway"]