FROM ubuntu:focal
ENV DEBIAN_FRONTEND=noninteractive
ADD custom.sh /tmp/
RUN sed -Eie 's/archive\.ubuntu\.com/ee.archive.ubuntu.com/g' /etc/apt/sources.list \
 && apt-get update \
 && apt-get install --yes --no-install-recommends \
    linux-image-generic \
    systemd \
    systemd-sysv \
    fdisk \
    grub-efi-amd64 \
    ubuntu-desktop \
 && /tmp/custom.sh \
 && apt-get autoremove -y \
 && apt-get clean