FROM golang:1.17-alpine3.14 AS build RUN apk add \ make WORKDIR /go/src/app COPY . . RUN make TAGS=production FROM alpine:3.12 RUN apk add --no-cache \ tzdata 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"]