# --- Hello World Service Dockerfile --- # Multi-stage build for minimal image size FROM golang:1.22-alpine AS builder WORKDIR /app COPY go.mod ./ COPY . . RUN CGO_ENABLED=0 go build -o /hello-world . FROM alpine:3.19 RUN apk --no-cache add ca-certificates COPY --from=builder /hello-world /hello-world EXPOSE 8080 ENTRYPOINT ["/hello-world"]