FROM debian:10.9-slim

ENV DEBIAN_FRONTEND="noninteractive"

RUN apt-get update \
  && apt-get upgrade -y \
  && apt-get install -y \
    # Direct dependencies:
    curl \
    gawk \
    git \
    gnupg \
    # Assumed to be present:
    procps \
    make \
  # Cleaning cache:
  && apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false \
  && apt-get clean -y && rm -rf /var/lib/apt/lists/*