alternatively you can create a multi staged build. also you dont need clean up the builder, since the unused files are not used in the final image. also add a

alternatively you can create a multi staged build. also you dont need clean up the builder, since the unused files are not used in the final image. also add a new file you can just append it to the builder. (not rebuild required of the previous installs required since you don't care about the size of the builder image ) FROM python:3.8-alpine as builder RUN apk add --virtual build-dependencies gcc build-base freetype-dev libpng-dev openblas-dev RUN pip install matplotlib pandas FROM python:3.8-alpine # a couple of copy commands to copy binaries and py files from builder to the final image. COPY --from=builder /usr/bin /usr/bin COPY --from=builder /usr/local/lib/ /usr/local/lib/