Centos7 OpenStack环境安装
Ifcofnig vim命令
Centos7最小化安装后如没有ifconfig vim命令，执行：
1 yum install -y net-tools vim
修改网卡名称
vim /etc/default/grub增加 “net.ifnames=0 biosdevname=0”
grub2-mkconfig -o /boot/grub2/grub.cfg
cd /etc/sysconfig/network-scripts/
mv ifcfg-enp1s0 ifcfg-eth0
sed -i 's/enp1s0/eth0/g' ifcfg-eth0
修改完后重启reboot，开机后ifconfig检查
关闭防火墙
CentOS 7.0默认使用的是firewall作为防火墙，这里改为iptables防火墙。
firewall：
systemctl start firewalld.service#启动firewall
systemctl stop firewalld.service#停止firewall systemctl disable firewalld.service#禁止firewall开机启动
修改三台主机的hosts文件
vim /etc/hosts # controller 192.168.116.8 controller # compute1 192.168.116.7 compute1 # compute2 192.168.116.10 compute2 #测试配置是否成功 ping controller ping compute1 ping compute2
安装ntp
#每台都要装 yum install -y ntp #修改控制器的ntp vim /etc/ntp.conf restrict 192.168.116.0 mask 255.255.255.0 nomodify notrap #只有ntp服务器同步成功后，ntp客户端才能够同步到ntp服务器的时间 server 127.127.1.0 # local clock #节点服务器删除 server配置 #添加 server 192.168.116.7 iburst
fudge 192.168.116.7 stratum 8 estrict controller nomodify notrap noquery #全部修改完毕添加为开机自启并立即启动 systemctl enable ntpd.service
生成安全密码的命令
openssl rand -hex 10
以下在所有的服务器上操作
安装yum插件，优先级包，使系统信息库中的相对优先级分配：
yum install yum-plugin-priorities
安装 EPEL库与RDO库
yum install -y http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
http://rdo.fedorapeople.org/openstack-juno/rdo-release-juno.rpm
升级你的系统上的软件包
yum upgrade -y
安装OpenStack的SELinux的包自动为OpenStack的服务管理安全策略：
yum install openstack-selinux -y
数据库只装一台即可
该数据库通常运行在控制器节点上
安装和配置数据库服务器
yum install -y mariadb mariadb-server MySQL-python
新建并编辑/etc/my.cnf.d/mariadb_openstack.cnf文件
vim /etc/my.cnf.d/mariadb_openstack.cnf [mysqld] bind-address = 192.168.116.8 default-storage-engine = innodb innodb_file_per_table
collation-server = utf8_general_ci
init-connect = 'SET NAMES utf8'
character-set-server = utf8
启动数据库服务并将其配置为启动系统启动时：
systemctl enable mariadb.service systemctl start mariadb.service systemctl status mariadb.service
安装数据库服务，包括选择合适的密码root帐户：
# mysql_secure_installation NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY! In order to log into MariaDB to secure it, we'll need the current password for the root user. If you've just installed MariaDB, and you haven't set the root password yet, the password will be blank, so you should just press enter here. Enter current password for root (enter for none): OK, successfully used password, moving on... Setting the root password ensures that nobody can log into the MariaDB root user without the proper authorisation. Set root password? [Y/n] Y New password: Re-enter new password: Password updated successfully! Reloading privilege tables.. ... Success! By default, a MariaDB installation has an anonymous user, allowing anyone to log into MariaDB without having to have a user account created for them. This is intended only for testing, and to make the installation go a bit smoother. You should remove them before moving into a production environment. Remove anonymous users? [Y/n] Y ... Success! Normally, root should only be allowed to connect from 'localhost'. This ensures that someone cannot guess at the root password from the network. Disallow root login remotely? [Y/n] Y ... Success! By default, MariaDB comes with a database named 'test' that anyone can access. This is also intended only for testing, and should be removed before moving into a production environment. Remove test database and access to it? [Y/n] Y - Dropping test database... ... Success! - Removing privileges on test database... ... Success! Reloading the privilege tables will ensure that all changes made so far will take effect immediately. Reload privilege tables now? [Y/n] Y ... Success! Cleaning up... All done! If you've completed all of the above steps, your MariaDB installation should now be secure. Thanks for using MariaDB!