FROM golang:1.14-alpine as builder WORKDIR /go/src/drone-email COPY . . RUN GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build FROM alpine:3.14 RUN apk add --no-cache ca-certificates tzdata COPY --from=builder /go/src/drone-email/drone-email /bin/ ENTRYPOINT ["/bin/drone-email"]