FROM golang:1.23-alpine AS builder
RUN apk add --no-cache git ca-certificates
WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 go build -ldflags="-s -w" -o /gosleep-timer .

FROM scratch
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=builder /gosleep-timer /gosleep-timer
ENTRYPOINT ["/gosleep-timer"]