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 \
 && rm -rf /var/lib/apt/lists/*
RUN useradd worker --create-home --user-group