FROM golang:1.15-alpine3.12 AS build RUN apk add \ make WORKDIR /go/src/app COPY . . RUN make FROM alpine:3.12 WORKDIR /app COPY --from=build /go/src/app/assets assets COPY --from=build /go/src/app/templates templates COPY --from=build /go/src/app/data/cities.json data/ COPY --from=build /go/src/app/datetime . CMD ["./datetime"]