OpenStack 环境配置
虚拟机资源信息
控制节点ct | 计算节点ct1 | 计算节点ct2 |
---|---|---|
CPU:双核双线程-CPU虚拟化开启 内存:8G 硬盘:300G+300G(CEPH块存储) 双网卡:VM1-(局域网)192.168.100.40 NAT-192.168.177.4 操作系统:Centos 7.6(1810)-最小化安装 |
CPU:双核双线程-CPU虚拟化开启 内存:8G 硬盘:300G+300G(CEPH块存储) 双网卡:VM1-(局域网)192.168.100.50 NAT-192.168.177.5 操作系统:Centos 7.6(1810)-最小化安装 |
CPU:双核双线程-CPU虚拟化开启 内存:8G 硬盘:300G+300G(CEPH块存储) 双网卡:VM1-(局域网)192.168.100.60 NAT-192.168.177.6 操作系统:Centos 7.6(1810)-最小化安装 |
部署思路
- 配置操作系统+OpenStack运行环境
- 配置OpenStack平台基础服务(rabbitmq、mariadb、memcache、Apache)
- 配置OpenStack keystone组件
- 配置OpenStack Glance组件
- 配置placement服务
- 配置OpenStack Nova组件
- 配置OpenStack Neutron组件
- 配置OpenStack dashboard组件
- 配置OpenStack Cinder组件
- 常用云主机操作
基础环境配置(所有节点)
- 修改主机名
- 关闭防火墙、核心防护
- 所有节点免交互
- 基础环境依赖包
[root@ct ~]# systemctl stop firewalld
[root@ct ~]# systemctl disable firewalld
[root@ct ~]# setenforce 0
[root@ct ~]# vim /etc/sysconfig/selinux
SELINUX=disabled
所有节点安装
yum -y install net-tools bash-completion vim gcc gcc-c++ make pcre pcre-devel expat-devel cmake bzip2 wget
设置阿里源\网易源(确保能上外网)
wget -O /etc/yum.repos.d/CentOS-Base-epel.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum -y install centos-release-openstack-train python-openstackclient openstack-selinux openstack-utils
时间同步+周期性计划任务
[root@ct ~]# hostnamectl set-hostname ct
[root@ct ~]# su
控制节点配置(ct)
[root@ct ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
BOOTPROTO=static
IPADDR=192.168.177.4
NETMASK=255.255.255.0
GATEWAY=192.168.177.2
IPV4_ROUTE_METRIC=90 ###调由优先级,NAT网卡优先
ONBOOT=yes
[root@ct ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens37
BOOTPROTO=static
IPADDR=192.168.100.40
NETMASK=255.255.255.0
#GATEWAY=192.168.100.2
ONBOOT=yes
[root@ct ~]# systemctl restart network
配置Hosts
[root@ct ~]# vi /etc/hosts
192.168.100.40 ct
192.168.100.50 ct1
192.168.100.60 ct2
以上为内网IP
免交户(所有节点)
[root@ct ~]# ssh-keygen -t rsa
[root@ct ~]# ssh-copy-id ct
[root@ct ~]# ssh-copy-id ct1
[root@ct ~]# ssh-copy-id ct2
配置DNS(所有节点)
[root@ct ~]# vim /etc/resolv.conf
nameserver 114.114.114.114
安装基础环境包
- 控制节点ct时间同步配置
[root@ct ~]# yum install chrony -y
[root@ct ~]# vim /etc/chrony.conf
[root@ct ~]# systemctl enable chronyd
[root@ct ~]# systemctl restart chronyd
使用chronyc sources 命令查询时间同步信息
[root@ct ~]# chronyc sources
210 Number of sources = 4
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^- ntp.xtom.nl 2 10 277 598 -2987us[-3581us] +/- 130ms
^* 202.118.1.130 1 9 67 159 -3640us[-4280us] +/- 28ms
^- sv1.ggsrv.de 2 10 75 456 +14ms[ +13ms] +/- 138ms
^+ 119.28.183.184 2 10 377 205 -9391us[ -10ms] +/- 77ms
设置周期性任务
[root@ct ~]# crontab -l
*/2 * * * * /usr/bin/chronyc sources >> /var/log/chronyc.log
#OpenStack 的 train 版本仓库源安装 包,同时安装 OpenStack 客户端和 openstack-selinux 安装包
系统环境配置
配置服务(控制节点)
一、安装、配置MariaDB
[root@ct ~]# yum -y install mariadb mariadb-server python2-PyMySQL
#此包用于openstack的控制端连接mysql所需要的模块,如果不安装,则无法连接数据库;此包只安装在控制端
[root@ct ~]# yum -y install libibverbs
添加MySQL子配置文件,增加如下内容
[root@ct ~]# vim /etc/my.cnf.d/openstack.cnf
[mysqld]
bind-address = 192.168.100.11 #控制节点局域网地址
default-storage-engine = innodb #默认存储引擎
innodb_file_per_table = on #每张表独立表空间文件
max_connections = 4096 #最大连接数
collation-server = utf8_general_ci #默认字符集
character-set-server = utf8
开机自启动、开启服务
[root@ct my.cnf.d]# systemctl enable mariadb
[root@ct my.cnf.d]# systemctl start mariadb
执行MariaDB 安全配置脚本
[root@ct my.cnf.d]# mysql_secure_installation
Enter current password for root (enter for none): #回车
OK, successfully used password, moving on...
Set root password? [Y/n] Y
Remove anonymous users? [Y/n] Y
... Success!
Disallow root login remotely? [Y/n] N
... skipping.
Remove test database and access to it? [Y/n] Y
Reload privilege tables now? [Y/n] Y
安装RabbitMQ
所有创建虚拟机的指令,控制端都会发送到rabbitmq,node节点监听rabbitmq
[root@ct ~]# yum -y install rabbitmq-server
配置服务,启动RabbitMQ服务,并设置其开机启动
[root@ct ~]# systemctl enable rabbitmq-server.service
[root@ct ~]# systemctl start rabbitmq-server.service
创建消息队列用户,用于controler和node节点连接rabbitmq的认证
[root@ct ~]# rabbitmqctl add_user openstack RABBIT_PASS
Creating user "openstack"
配置openstack用户的操作权限(正则,配置读写权限)
[root@ct ~]# rabbitmqctl set_permissions openstack ".*" ".*" ".*"
Setting permissions for user "openstack" in vhost "/"
#可查看25672和5672 两个端口(5672是Rabbitmq默认端口,25672是Rabbit的测试工具CLI的端口)
查看rabbitmq插件列表
[root@ct ~]# rabbitmq-plugins list
开启rabbitmq的web管理界面的插件,端口为15672
[root@ct ~]# rabbitmq-plugins enable rabbitmq_management
检查端口(25672 5672 15672)
[root@ct my.cnf.d]# ss -natp | grep 5672
LISTEN 0 128 *:25672 *:* users:(("beam.smp",pid=24596,fd=46))
LISTEN 0 128 :::5672 :::* users:(("beam.smp",pid=24596,fd=55))
可访问192.168.177.4:15672查看队列信息(默认账号密码均为guest)
安装memcached
作用
安装memcached是用于存储session信息;服务身份验证机制使用Memcached来缓存令牌 在登录openstack的dashboard时,会产生一些session信息,这些session信息会存放到memcached中
安装Memcached
[root@ct ~]# yum install -y memcached python-memcached
#python-*模块在OpenStack中起到连接数据库的作用
修改Memcached配置文件
[root@ct ~]# cat /etc/sysconfig/memcached
PORT="11211"
USER="memcached"
MAXCONN="1024"
CACHESIZE="64"
OPTIONS="-l 127.0.0.1,::1,ct"
设置开机自启动并开启服务
[root@ct ~]# systemctl enable memcached
[root@ct ~]# systemctl start memcached
查看端口
[root@ct ~]# netstat -nautp | grep 11211
tcp 0 0 192.168.100.40:11211 0.0.0.0:* LISTEN 15990/memcached
tcp 0 0 127.0.0.1:11211 0.0.0.0:* LISTEN 15990/memcached
tcp6 0 0 ::1:11211 :::* LISTEN 15990/memcached
修改etcd配置文件
[root@ct ~]# cd /etc/etcd/
[root@ct etcd]# ls
etcd.conf
[root@ct etcd]# vim etcd.conf
ETCD_DATA_DIR="/var/lib/etcd/default.etcd" #数据目录位置
ETCD_LISTEN_PEER_URLS="http://192.168.100.11:2380" #监听其他etcd member的url(2380端口,集群之间通讯,域名为无效值)
ETCD_LISTEN_CLIENT_URLS="http://192.168.100.11:2379" #对外提供服务的地址(2379端口,集群内部的通讯端口)
ETCD_NAME="ct" #集群中节点标识(名称)
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.100.11:2380" #该节点成员的URL地址,2380端口:用于集群之间通讯。
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.100.11:2379
ETCD_INITIAL_CLUSTER="ct=http://192.168.100.11:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster-01" #集群唯一标识
ETCD_INITIAL_CLUSTER_STATE="new" #初始集群状态,new为静态,若为existing,则表示此ETCD服务将尝试加入已有的集群
若为DNS,则表示此集群将作为被加入的对象
开机自启动、开启服务,检测端口
[root@ct ~]# systemctl enable etcd.service
[root@ct ~]# systemctl start etcd.service
[root@ct ~]# netstat -nautp | grep 2379
tcp 0 0 192.168.100.40:2379 0.0.0.0:* LISTEN 16401/etcd
tcp 0 0 192.168.100.40:2379 192.168.100.40:59222 ESTABLISHED 16401/etcd
tcp 0 0 192.168.100.40:59222 192.168.100.40:2379 ESTABLISHED 16401/etcd
[root@ct ~]# netstat -anutp |grep 2380
tcp 0 0 192.168.100.40:2380 0.0.0.0:* LISTEN 16401/etcd