初识openstack之4——opsenstack安装前准备

原创

qiao645 2018-06-28 20:57:08 博主文章分类：OpenStack ©著作权

文章标签 openstack 安装准备 文章分类 OpenStack 云计算

©著作权归作者所有：来自51CTO博客作者qiao645的原创作品，请联系作者获取转载授权，否则将追究法律责任

一、实验说明

按照官方文档搭建queens版本openstack，拓扑如下图所示：

二、实验目的

准备好openstack组件安装前所需要的其他软件，如MariaDB，RabbitMQ等。

三、操作步骤

修改所有节点/etc/hosts文件

如果hosts文件中有将主机名解析到127.0.0.1的配置段，将其注销
所有节点关闭NetworkManager
[root@compute1 ~]# systemctl stop NetworkManager.service
[root@compute1 ~]# systemctl disable NetworkManager.service
所有节点添加openstack需要的yum源
[root@controller ~]# vim /etc/yum.repo.d/OpenStack-Queens.repo

[OpenStack-Queens]
name=OpenStack-Queens
baseurl=https://mirrors.aliyun.com/centos/7/cloud/x86_64/openstack-queens/
enable=1
gpgcheck=0

安装NTP服务 controller节点进行以下操作：

安装并设置允许同步的网段
[root@controller ~]# yum install chrony
[root@controller ~]# vim /etc/chrony.conf

allow 172.16.80.0/24

启动NTP服务并同步测试
[root@controller ~]# systemctl enable chronyd.service
[root@controller ~]# systemctl start chronyd.service
[root@controller ~]# chronyc sources

其他节点进行以下操作：

安装NTP并设置向controller进行时间同步 [root@controller ~]# yum install chrony
[root@controller ~]# vim /etc/chrony.conf

server controller iburst

启动服务并验证同步 [root@controller ~]# systemctl enable chronyd.service
[root@controller ~]# systemctl start chronyd.service
[root@controller ~]# chronyc sources

安装数据库

安装并编辑配置文件
[root@controller ~]# yum install mariadb mariadb-server python2-PyMySQL
[root@controller ~]# vim /etc/my.cnf.d/openstack.cnf

[mysqld]
bind-address = 172.16.80.10
default-storage-engine = innodb
innodb_file_per_table = on
max_connections = 4096
collation-server = utf8_general_ci
character-set-server = utf8
skip_name_resolve = 1

启动数据库
[root@controller ~]# systemctl enable mariadb.service
[root@controller ~]# systemctl start mariadb.service

安装消息中间件

安装rabbitmq中间件
[root@controller ~]# yum install rabbitmq-server
加载rabbitmq_management插件启用图形界面 [root@controller ~]# rabbitmq-plugins enable rabbitmq_management
[root@controller ~]# systemctl start rabbitmq-server.service
为openstack创建用户并授权
[root@controller ~]# rabbitmqctl add_user openstack password1!
[root@controller ~]# rabbitmqctl set_permissions openstack "." "." ".*"

安装认证缓存

安装程序包
[root@controller ~]# yum install memcached python-memcached
配置并启用程序
[root@controller ~]# vim /etc/sysconfig/memcached

[root@controller ~]# systemctl enable memcached.service
[root@controller ~]# systemctl start memcached.service

安装分布式密钥存储

下载安装包
[root@controller ~]# yum install etcd
编辑配置文件并启动
[root@controller ~]# vim /etc/etcd/etcd.conf

#[Member]
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="http://172.16.80.10:2380"
ETCD_LISTEN_CLIENT_URLS="http://172.16.80.10:2379"
ETCD_NAME="controller"
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://172.16.80.10:2380"
ETCD_ADVERTISE_CLIENT_URLS="http://172.16.80.10:2379"
ETCD_INITIAL_CLUSTER="controller=http://172.16.80.10:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster-01"
ETCD_INITIAL_CLUSTER_STATE="new"

[root@controller ~]# systemctl enable etcd
[root@controller ~]# systemctl start etcd

至此，openstack安装前准备工作全部完成。