RUN apt-get update && apt-get install -y r-base

FROM ubuntu:18.10

ENV DEBIAN_FRONTEND noninteractive

RUN apt-get -y install --no-install-recommends --no-install-suggests
        gnupg2 gnupg1
      && apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
      && add-apt-repository 'deb https://cloud.r-project.org/bin/linux/ubuntu bionic-cran35/'
      && apt-get install r-base