FROM golang:1.21.3-alpine3.18 AS builder

COPY go.mod go.sum /opt/minireader/
RUN go mod download

COPY . /opt/minireader
RUN go build -o /opt/minireader/minireader /opt/minireader/cmd/minireader

FROM alpine:3.18
COPY --from=builder /opt/minireader/minireader /app/minireader

CMD ["/app/minireader"]