要搭建OpenStack，可以使用Shell脚本来自动化部署过程。以下是一个简单的Shell脚本示例，用于在Ubuntu上搭建OpenStack Newton版本。
```shell
#!/bin/bash
# 安装必要的软件包
sudo apt-get update
sudo apt-get install -y python-dev python-pip
# 安装OpenStack CLI工具
sudo pip install python-openstackclient
# 安装MySQL数据库
sudo apt-get install -y mariadb-server python-pymysql
sudo sed -i 's/bind-address/#bind-address/' /etc/mysql/mariadb.conf.d/50-server.cnf
sudo systemctl restart mysql
# 创建OpenStack数据库
sudo mysql -e "CREATE DATABASE keystone;"
sudo mysql -e "GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'localhost' IDENTIFIED BY 'password';"
sudo mysql -e "GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'%' IDENTIFIED BY 'password';"
# 安装Keystone身份认证服务
sudo apt-get install -y keystone
# 配置Keystone
sudo cp /etc/keystone/keystone.conf /etc/keystone/keystone.conf.bak
sudo sed -i 's/connection = sqlite:\/\/\/\/var\/lib\/keystone\/keystone.db/connection = mysql+pymysql:\/\/keystone:password@localhost\/keystone/' /etc/keystone/keystone.conf
sudo sed -i 's/#admin_token = ADMIN/admin_token = TOKEN/' /etc/keystone/keystone.conf
# 初始化Keystone数据库
sudo su -s /bin/sh -c "keystone-manage db_sync" keystone
# 启动Keystone服务
sudo service keystone restart
# 创建admin和demo租户
export OS_TOKEN=TOKEN
export OS_URL=http://localhost:35357/v3
openstack project create --domain default --description "Admin Project" admin
openstack project create --domain default --description "Demo Project" demo
openstack user create --domain default --password-prompt admin
openstack role create admin
openstack role add --project admin --user admin admin
openstack user create --domain default --password-prompt demo
openstack role create user
openstack role add --project demo --user demo user
# 验证安装
openstack --os-auth-url http://localhost:35357/v3 --os-project-domain-name default --os-user-domain-name default --os-project-name admin --os-username admin --os-password password token issue
```
注意：上述脚本仅用于演示目的，实际情况中可能需要进行更多的配置和调整。
要运行此脚本，可以将其保存为`openstack_setup.sh`文件，并在终端中运行以下命令：
```shell
chmod +x openstack_setup.sh
./openstack_setup.sh
```
脚本将自动完成安装和配置OpenStack的过程。
