准备openstack基础环境

在所有的openstack节点上执行

1.配置阿里yum源

yum -y install wget
rm -rf /etc/yum.repos.d/*
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum clean all
yum makecache

2.安装ntp

yum -y install chrony
systemctl enable chronyd.service && systemctl start chronyd.service
chronyc sources
timedatectl
date "+%Y-%m-%d %H:%M:%S"
hwclock -w

3.禁用selinux

setenforce 0
sed -i "/SELINUX=enforcing/cSELINUX=disabled" /etc/selinux/config

4.关闭防火墙

systemctl disable firewalld && systemctl stop firewalld && systemctl status firewalld

5.配置hosts

cat << EOF >> /etc/hosts
172.31.240.49 controller
172.31.240.45 compute01
172.31.240.46 compute02
172.31.240.47 compute03
EOF

6.安装epel源

yum -y install epel-release

7.安装openstack源

yum -y install centos-release-openstack-queens
其它版本的源：
centos-release-openstack-ocata.noarch
centos-release-openstack-pike.x86_64
centos-release-openstack-queens.noarch
centos-release-openstack-rocky.noarch
centos-release-openstack-stein.noarch

8.安装openstack命令行客户端

yum -y install python-openstackclient

9.安装openstack命令行配置工具

yum -y install openstack-utils

10.安装openstack-selinux软件包

yum -y install openstack-selinux

在控制节点上执行

11.安装单机版rabbitmq

yum -y install rabbitmq-server

12.启动rabbitmq

systemctl enable rabbitmq-server && systemctl restart rabbitmq-server && systemctl status rabbitmq-server

13.在rabbitmq中添加openstack用户

rabbitmqctl add_user openstack 0penstackRMQ
rabbitmqctl set_permissions -p "/" openstack ".*" ".*" ".*"
rabbitmqctl set_user_tags openstack administrator
rabbitmqctl list_users

14.安装单机版memcached

yum -y install memcached python-memcached

15.配置memcached

sed -i '/OPTIONS=/cOPTIONS="-l 0.0.0.0,::1"'  /etc/sysconfig/memcached

16.启动memcached

systemctl enable memcached.service && systemctl start memcached.service && systemctl status memcached.service