FROM ubuntu:xenial
RUN echo 'APT::Install-Recommends "no";' > /etc/apt/apt.conf.d/99recommends
RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
  build-essential \
  git \
  mercurial \
  python-yaml \
  luarocks \
  unzip \
  npm \
  virtualenv
RUN useradd worker --create-home --user-group