FROM golang:1.22-alpine AS builder
RUN apk add --no-cache ca-certificates
WORKDIR /build
COPY go.mod .
RUN go mod download
COPY main.go .
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-w -s" -o /app/server .

FROM scratch
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=builder /app/server /server
EXPOSE 8080
ENTRYPOINT ["/server"]
