OpenStatck虚拟机环境准备-CentOS7.2安装

　　　　　　　　　　　　OpenStatck虚拟机环境准备-CentOS7.2安装

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　作者：尹正杰

　　不得不吐槽一下CentOS7.5和7.6对OpenStack的支持并不友好，虽然可以正常安装OpenStack服务但无法创建虚拟机，没办法只能选择版本较低的“CentOS-7-x86_64-Minimal-1511.iso”镜像来安装OpenStack，本教程是记录一下创建虚拟机的注意事项。

一.使用"VMware Workstation"创建虚拟机

1>.下载ISO(下载地址:"http://archive.kernel.org/centos-vault/7.2.1511/isos/x86_64/")

2>.选择下载的iso

3>.自定义虚拟机名称及安装路径

4>.自定义磁盘空间

5>.CPU配置

6>.内存配置

二.基于"VMware Workstation"创建的虚拟机安装"CentOS 7.2"版本的操作系统

1>.开启虚拟机

2>.按"tab"键，追加"net.ifnames=0 biosdevname=0"内核参数，如下图所示。

3>.安装时语言选择默认的英语即可

OpenStatck虚拟机环境准备-CentOS7.2安装

4>.添加中文支持并选择时区

OpenStatck虚拟机环境准备-CentOS7.2安装

5>.自定义分区(不建议对swap进行分区)

6>.点击安装

7>.为管理员设置密码

9>.安装完毕后重启虚拟机

OpenStatck虚拟机环境准备-CentOS7.2安装

三.Linux操作系统初始化调优参数

1>.最小化安装操作系统必备命令行工具(别安装epel源哟，因为它会和openstack的源冲突)

[root@openstack.yinzhengjie.org.cn ~]# yum -y install vim net-tools bridge-utils firewalld bc iotop bc gcc gcc-c++ glibc glibc-devel pcre pcre-devel openssl openssl-devel zip unzip zlib-devel lrzsz tree ntpdate telnet lsof tcpdump wget libevent libevent-devel systemd-devel bash-completion traceroute psmisc

2>.禁用"NetworkManager"服务

[root@centos72.yinzhengjie.org.cn ~]# systemctl status NetworkManager
● NetworkManager.service - Network Manager
   Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
   Active: active (running) since Sat 2020-01-11 16:42:52 CST; 1min 32s ago
 Main PID: 871 (NetworkManager)
   CGroup: /system.slice/NetworkManager.service
           └─871 /usr/sbin/NetworkManager --no-daemon

Jan 11 16:42:52 centos72.yinzhengjie.org.cn NetworkManager[871]: <info>  (eth0): device state change: config -> ip-config (reason 'none') [50 70 0]
Jan 11 16:42:52 centos72.yinzhengjie.org.cn NetworkManager[871]: <info>  (eth0): device state change: ip-config -> ip-check (reason 'none') [70 80 0]
Jan 11 16:42:52 centos72.yinzhengjie.org.cn NetworkManager[871]: <info>  (eth0): device state change: ip-check -> secondaries (reason 'none') [80 90 0]
Jan 11 16:42:52 centos72.yinzhengjie.org.cn NetworkManager[871]: <info>  (eth0): device state change: secondaries -> activated (reason 'none') [90 100 0]
Jan 11 16:42:52 centos72.yinzhengjie.org.cn NetworkManager[871]: <info>  NetworkManager state is now CONNECTED_LOCAL
Jan 11 16:42:52 centos72.yinzhengjie.org.cn NetworkManager[871]: <info>  NetworkManager state is now CONNECTED_GLOBAL
Jan 11 16:42:52 centos72.yinzhengjie.org.cn NetworkManager[871]: <info>  Policy set 'eth0' (eth0) as default for IPv4 routing and DNS.
Jan 11 16:42:52 centos72.yinzhengjie.org.cn NetworkManager[871]: <info>  (eth0): Activation: successful, device activated.
Jan 11 16:42:52 centos72.yinzhengjie.org.cn NetworkManager[871]: <info>  wpa_supplicant running
Jan 11 16:42:57 centos72.yinzhengjie.org.cn NetworkManager[871]: <info>  startup complete
[root@centos72.yinzhengjie.org.cn ~]#

[root@centos72.yinzhengjie.org.cn ~]# systemctl status NetworkManager