FROM golang:alpine as builder

WORKDIR /app/

RUN apk add -U --no-cache ca-certificates && update-ca-certificates

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

COPY . ./
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -installsuffix cgo -ldflags "-w -s" -o /bot


FROM scratch

WORKDIR /

COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=builder /bot ./

CMD ["/bot"]