ARG ALPINE=3.18
FROM golang:1.21-alpine${ALPINE} AS build
WORKDIR /app
COPY go.mod go.sum .
RUN go mod download

ADD . /app
RUN go build

FROM alpine:${ALPINE}

WORKDIR /bin
COPY --from=build /app/matrix-vanity .

WORKDIR /
CMD ["/bin/matrix-vanity"]