实验环境

系统：CentOS-7-x86_64-DVD-1804

实验环境：vmware

网络：桥接模式----1块网卡---静态IP

hostname	ip	功能
controller	192.168.20.205	管理节点
compute	192.168.20.215	计算节点

（一）环境设置，所有节点执行

1）配置主机名

[root@controller ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.20.205  controller
192.168.20.215  compute

1.2.关闭防火墙和selinux

systemctl stop firewalld.service
systemctl disable firewalld.service
systemctl status firewalld.service

setenforce 0
getenforce
sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/sysconfig/selinux
grep SELINUX=disabled /etc/sysconfig/selinux

1.3.配置时间同步

# 在所有的节点上执行 
yum install chrony -y
vim /etc/chrony.conf
# 在控制节点上配置
# 去掉原有的server
server  ntp6.aliyun.com iburst
allow 192.168.20.0/24

3）重启ntp服务，并配置开机自启动

systemctl restart chronyd.service
systemctl status chronyd.service
systemctl enable chronyd.service
systemctl list-unit-files |grep chronyd.service

4）设置时区，同步时间

timedatectl set-timezone Asia/Shanghai
chronyc sources
timedatectl status

1.4.配置相关yum源 

1）配置阿里云的base和epel源

mv -f /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repomv /etc/yum.repos.d/epel.repo /etc/yum.repos.d/epel.repo.backup
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

2）安装openstack-rocky的仓库

yum install centos-release-openstack-rocky -y
yum clean all
yum makecache

# 也可以手动创建OpenStack的阿里云yum源地址  

/etc/yum.repos.d/CentOS-OpenStack-Rocky.repo

[centos-openstack-rocky]
name=CentOS-7 - OpenStack rocky
baseurl=http://mirrors.aliyun.com/centos/7/cloud/$basearch/openstack-rocky/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Cloud[centos-openstack-rocky-test]
name=CentOS-7 - OpenStack rocky Testing
baseurl=http://mirrors.aliyun.com/centos/7/cloud/$basearch/openstack-rocky/
gpgcheck=0
enabled=0[centos-openstack-rocky-debuginfo]
name=CentOS-7 - OpenStack rocky - Debug
baseurl=http://mirrors.aliyun.com/centos/7/cloud/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Cloud[centos-openstack-rocky-source]
name=CentOS-7 - OpenStack rocky - Source
baseurl=http://mirrors.aliyun.com/centos/7/cloud/$basearch/openstack-rocky/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Cloud[rdo-trunk-rocky-tested]
name=OpenStack rocky Trunk Tested
baseurl=http://mirrors.aliyun.com/centos/7/cloud/$basearch/rdo-trunk-rocky-tested/
gpgcheck=0
enabled=0

3）更新软件包

yum update -y

4）安装openstack客户端相关软件

yum install python-openstackclient openstack-selinux -y

后面安装步骤参考链接

openstack rocky版详细搭建_openstack r版部署-CSDN博客