ARG FROM=docker.io/ubuntu:xenial
FROM ${FROM}
MAINTAINER Prateek Reddy Dodda <pd2839@att.com>

RUN set -xe \
	&& echo '#!/bin/sh' > /usr/sbin/policy-rc.d \
        ## If there is no shebang at the beginning of the file, the OS will try to execute it as a “normal” binary.
	&& echo 'exit 101' >> /usr/sbin/policy-rc.d \
	&& chmod +x /usr/sbin/policy-rc.d \
        ## To prevent services from being started automatically when you install packages with dpkg, apt, etc.,
	&& sed -i '/nobody/d' /etc/passwd \
	&& echo "nobody:x:65534:65534:nobody:/nonexistent:/bin/bash" >> /etc/passwd \
        ## To Restrict User to nobody for User login.
	&& dpkg-divert --local --rename --add /sbin/initctl \
	&& cp -a /usr/sbin/policy-rc.d /sbin/initctl \
	&& sed -i 's/^exit.*/exit 0/' /sbin/initctl \
        ## To use an updated version of some application instead of old version existing on your machine.
	&& echo 'force-unsafe-io' > /etc/dpkg/dpkg.cfg.d/docker-apt-speedup \
        ## Temporarily disable dpkg fsync to make building faster.
	&& echo 'DPkg::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; };' > /etc/apt/apt.conf.d/docker-clean \
	&& echo 'APT::Update::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; };' >> /etc/apt/apt.conf.d/docker-clean \
	&& echo 'Dir::Cache::pkgcache ""; Dir::Cache::srcpkgcache "";' >> /etc/apt/apt.conf.d/docker-clean \
	&& echo 'Acquire::Languages "none";' > /etc/apt/apt.conf.d/docker-no-languages \
	&& echo 'Acquire::GzipIndexes "true"; Acquire::CompressionTypes::Order:: "gz";' > /etc/apt/apt.conf.d/docker-gzip-indexes \
	&& echo 'Apt::AutoRemove::SuggestsImportant "false";' > /etc/apt/apt.conf.d/docker-autoremove-suggests \
        # Docker configurations for base Image
	&& apt-get update && apt-get install -y bash moreutils vim sudo screen rsyslog x11-apps python-oslo.rootwrap python-openstackclient python-glanceclient python-novaclient python-neutronclient python-cinderclient python-heat python3-oslo.rootwrap python3-openstackclient python3-glanceclient python3-novaclient python3-neutronclient python3-cinderclient \
        ## Install bash utilities,rsyslog,openstack client which is required for Keystone and oslo rootwrap.
        && apt-get clean && rm -rf /var/lib/apt/lists/*

CMD ["/bin/bash"]