开局要点：
修改selinux配置
修改hostname
接着脚本整理如下：
subscription-manager register --username=xxxxxx --password=xxxxxxx --auto-attach
subscription-manager repos --enable rhel-7-server-extras-rpms
subscription-manager repos --enable rhel-7-server-rpms
subscription-manager repos --enable rhel-server-rhscl-7-rpms
subscription-manager repos --enable rhel-7-server-optional-rpms --enable rhel-7-server-rh-common-rpms
for i in abrt-ccpp.service abrt-oops.service abrt-xorg.service abrtd.service avahi-daemon.service bluetooth.service cups.service firewalld.service iprdump.service iprinit.service iprupdate.service ModemManager.service NetworkManager.service rhnsd.service ; do systemctl stop $i; systemctl disable $i; done
systemctl stop NetworkManager.service
systemctl disable NetworkManager.service
systemctl start network.service
systemctl enable network.service
yum install -y https://repos.fedorapeople.org/repos/openstack/openstack-queens/rdo-release-queens-0.noarch.rpm
yum -y install yum-utils
yum-config-manager --enable rhui-REGION-rhel-server-extras rhui-REGION-rhel-server-opt
yum -y install http://rpmfind.net/linux/centos/7.5.1804/os/x86_64/Packages/python-zope-interface-4.0.5-4.el7.x86_64.rpm
yum install -y python2-pysaml2-3.0.2-2.el7.noarch
yum install -y ftp://mirror.switch.ch/pool/4/mirror/centos/7.5.1804/os/x86_64/Packages/dnsmasq-utils-2.76-5.el7.x86_64.rpm
yum install -y openstack-neutron-12.0.3-1.el7.noarch
yum install -y openstack-packstack
packstack --allinone
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