Centos7环境准备openstack pike的安装

##1.Centos7环境准备
#Centos 7 x86_64

#安装
yum -y install wget vim ntp net-tools tree openssh

#更换阿里源
mv /etc/yum.repos.d/CentOS-Base.repo{,.bak}
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

yum install centos-release-openstack-pike -y #安装OpenStack库
yum clean all && yum makecache #生成缓存

yum install python-openstackclient openstack-selinux python2-PyMySQL -y #OpenStack客户端
yum install openstack-utils -y #openstack工具

#关闭selinux、防火墙
systemctl stop firewalld.service
systemctl disable firewalld.service
firewall-cmd --state
sed -i '/^SELINUX=.*/c SELINUX=disabled' /etc/selinux/config
sed -i 's/^SELINUXTYPE=.*/SELINUXTYPE=disabled/g' /etc/selinux/config
grep --color=auto '^SELINUX' /etc/selinux/config
setenforce 0

#设置hostname
Host=controller.www.local
hostnamectl set-hostname $Host
# hostname $Host
# echo $Host>/etc/hostname

#设置网卡(Vlan、bond等)，规划好IP地址
#controller节点需要外网IP（使用其它网段IP地址）作为VNC代理

#hosts添加 ,controller也要添加
echo "10.2.1.20  controller">>/etc/hosts
echo "10.2.1.21  computer01">>/etc/hosts
echo "10.2.1.22  computer02">>/etc/hosts

#查看本机IP
ip add|sed -nr 's#^.*inet (.*)/24.*$#\1#gp'

#时间同步
/usr/sbin/ntpdate ntp6.aliyun.com 
echo "*/3 * * * * /usr/sbin/ntpdate ntp6.aliyun.com &> /dev/null" > /tmp/crontab
crontab /tmp/crontab

#升级，重启
yum update -y && reboot