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云计算管理平台之OpenStack简介及基础环境搭建

  一、简介

  什么是openstack?它是干嘛用的?

  简单说openstack是云计算管理平台,主要对云环境中的虚拟机做增删查改;它能够将多台物理设备的资源(cpu/内存等)整合成一个大的资源池,然后根据openstack提供的api接口向用户提供使用;用户可以根据openstack提供的资源池接口来启动虚拟机,管理虚拟机;openstack 主要组成由控制节点和计算节点组成;其中控制节点由多个组件组成,每个组件都是以api的形式向外提供服务,这多个组件共同组成了控制节点,所以控制节点上运行了很多服务;计算节点通常是指提供物理硬件,用于启动虚拟机的物理设备;

  二、架构

云计算管理平台之OpenStack简介及基础环境搭建

  提示:openstack主要把底层的多台server的资源分为了三类,计算,网络和存储;用户可以通过openstack提供的web界面直接在openstack上启动虚拟机实例;

  三、openstack基础环境准备

  本次实验是以openstack R版为例,其中各服务器角色如下

主机名 角色 ip地址
node01 控制节点 192.168.0.41/24
node02 数据库服务器 192.168.0.42/24
node03 计算节点 192.168.0.43/24

 

 

 

 

 

  

  1、各server上的基础环境配置

    1)时间同步

[root@node01 ~]# grep server /etc/chrony.conf # Use public servers from the pool.ntp.org project. server time.test.org iburst # Serve time even if not synchronized to any NTP server. [root@node01 ~]# scp /etc/chrony.conf node02:/etc/ chrony.conf                                                                                 100% 1141   992.7KB/s   00:00     [root@node01 ~]# scp /etc/chrony.conf node03:/etc/ chrony.conf                                                                                 100% 1141   663.6KB/s   00:00     [root@node01 ~]# chronyc sources                   210 Number of sources = 1 MS Name/IP address         Stratum Poll Reach LastRx Last sample                =============================================================================== ^* time.test.org                 3   6   377    40    -15us[  -86us] +/-   20ms [root@node01 ~]# ssh node02 'chronyc sources' 210 Number of sources = 1 MS Name/IP address         Stratum Poll Reach LastRx Last sample                =============================================================================== ^* time.test.org                 3   6   377    49  -6552ns[  -15us] +/-   20ms [root@node01 ~]# ssh node03 'chronyc sources'  210 Number of sources = 1 MS Name/IP address         Stratum Poll Reach LastRx Last sample                =============================================================================== ^* time.test.org                 3   6   377    52    -30us[ -103us] +/-   20ms [root@node01 ~]#  

    2)主机名解析

[root@node01 ~]# cat /etc/hosts 127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1         localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.0.99 time.test.org time-node 192.168.0.41 node01.test.org node01 controller  192.168.0.42 node02.test.org node02 192.168.0.43 node03.test.org node03 192.168.0.44 node04.test.org node04 192.168.0.45 node05.test.org node05 192.168.0.46 node06.test.org node06 [root@node01 ~]# scp /etc/hosts node02:/etc/ hosts                                                                                       100%  423    29.5KB/s   00:00     [root@node01 ~]# scp /etc/hosts node03:/etc/ hosts                                                                                       100%  423    46.5KB/s   00:00     [root@node01 ~]#  

    3)关闭selinux、iptables和NetworkManager

[root@node01 ~]# sed -i 's@SELINUX=enforcing@SELINUX=disabled@g' /etc/selinux/config  [root@node01 ~]# setenforce 0 [root@node01 ~]# getenforce  Permissive [root@node01 ~]# ssh node02 'sed -i 's@SELINUX=enforcing@SELINUX=disabled@g' /etc/selinux/config' [root@node01 ~]# ssh node02 'setenforce 0 && getenforce' Permissive [root@node01 ~]# ssh node03 'sed -i 's@SELINUX=enforcing@SELINUX=disabled@g' /etc/selinux/config'  [root@node01 ~]# ssh node03 'setenforce 0 && getenforce'                                           Permissive [root@node01 ~]# systemctl stop firewalld NetworkManager [root@node01 ~]# systemctl disable firewalld NetworkManager     Removed symlink /etc/systemd/system/multi-user.target.wants/NetworkManager.service. Removed symlink /etc/systemd/system/dbus-org.freedesktop.NetworkManager.service. Removed symlink /etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service. [root@node01 ~]# ssh node02 'systemctl stop firewalld NetworkManager && systemctl disable firewalld NetworkManager' Removed symlink /etc/systemd/system/multi-user.target.wants/NetworkManager.service. Removed symlink /etc/systemd/system/dbus-org.freedesktop.NetworkManager.service. Removed symlink /etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service. [root@node01 ~]# ssh node03 'systemctl stop firewalld NetworkManager && systemctl disable firewalld NetworkManager'  Removed symlink /etc/systemd/system/multi-user.target.wants/NetworkManager.service. Removed symlink /etc/systemd/system/dbus-org.freedesktop.NetworkManager.service. Removed symlink /etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service. [root@node01 ~]#  

  提示:如果你的系统是最小化安装,这里还需要安装一些基础的包;yum install -y vim wget tree  lrzsz gcc gcc-c++ automake pcre pcre-devel zlib zlib-devel openssl openssl-devel iproute net-tools iotop  lsof  ntpdate telnet bridge-utils;

    4)各服务器配置阿里云的base仓库和epel仓库包

[root@node01 ~]# rm -rf /etc/yum.repos.d/*.repo [root@node01 ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo --2020-10-27 22:43:42--  http://mirrors.aliyun.com/repo/Centos-7.repo Resolving mirrors.aliyun.com (mirrors.aliyun.com)... 118.116.3.238, 118.123.164.244, 118.123.164.119, ... Connecting to mirrors.aliyun.com (mirrors.aliyun.com)|118.116.3.238|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 2523 (2.5K) [application/octet-stream] Saving to: ‘/etc/yum.repos.d/CentOS-Base.repo’  100%[====================================================================================>] 2,523       --.-K/s   in 0s        2020-10-27 22:43:42 (180 MB/s) - ‘/etc/yum.repos.d/CentOS-Base.repo’ saved [2523/2523]  [root@node01 ~]# wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo --2020-10-27 22:43:51--  http://mirrors.aliyun.com/repo/epel-7.repo Resolving mirrors.aliyun.com (mirrors.aliyun.com)... 118.116.3.248, 118.123.164.120, 125.64.102.239, ... Connecting to mirrors.aliyun.com (mirrors.aliyun.com)|118.116.3.248|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 664 [application/octet-stream] Saving to: ‘/etc/yum.repos.d/epel.repo’  100%[====================================================================================>] 664         --.-K/s   in 0s        2020-10-27 22:43:51 (95.0 MB/s) - ‘/etc/yum.repos.d/epel.repo’ saved [664/664]  [root@node01 ~]# ll /etc/yum.repos.d/ total 8 drwxr-xr-x. 2 root root  219 Oct 27 22:42 bak -rw-r--r--. 1 root root 2523 Jun 16  2018 CentOS-Base.repo -rw-r--r--. 1 root root  664 May 11  2018 epel.repo [root@node01 ~]#  

  提示:在node02和node03上都要做以上操作;

  2、在各节点上配置openstack R版的yum仓库

[root@node01 ~]# yum install centos-release-openstack-rocky -y 

  提示:以上操作会在/etc/yum.repos.d/目录下生成很多repo文件;

  验证:查看/etcyum.repos.d/目录下是否多了很多repo文件?

[root@node01 ~]# ll /etc/yum.repos.d/ total 56 drwxr-xr-x. 2 root root  219 Oct 27 22:42 bak -rw-r--r--. 1 root root 2523 Jun 16  2018 CentOS-Base.repo -rw-r--r--. 1 root root  850 Jul 31  2018 CentOS-Ceph-Luminous.repo -rw-r--r--. 1 root root 1309 Apr  8  2020 CentOS-CR.repo -rw-r--r--. 1 root root  649 Apr  8  2020 CentOS-Debuginfo.repo -rw-r--r--. 1 root root  314 Apr  8  2020 CentOS-fasttrack.repo -rw-r--r--. 1 root root  630 Apr  8  2020 CentOS-Media.repo -rw-r--r--. 1 root root 1186 Aug 29  2018 CentOS-OpenStack-rocky.repo -rw-r--r--. 1 root root  612 Feb  1  2019 CentOS-QEMU-EV.repo -rw-r--r--. 1 root root 1331 Apr  8  2020 CentOS-Sources.repo -rw-r--r--. 1 root root  353 Jul 31  2018 CentOS-Storage-common.repo -rw-r--r--. 1 root root 7577 Apr  8  2020 CentOS-Vault.repo -rw-r--r--. 1 root root  616 Apr  8  2020 CentOS-x86_64-kernel.repo -rw-r--r--. 1 root root  664 May 11  2018 epel.repo [root@node01 ~]#  

  提示:这里面的repo文件仓库地址都是指向centos的官方仓库,如果国内下载速度慢,可以把对应的地址指向阿里云;

  把centos-openstack-rocky.repo地址指向阿里云

云计算管理平台之OpenStack简介及基础环境搭建

  提示:这里只需要改第一个就行,后面的仓库都是禁用了的,不用更改;

  把node01上的centos-openstack-rocky.repo文件复制给node02和node03

[root@node01 ~]# scp /etc/yum.repos.d/CentOS-OpenStack-rocky.repo node02:/etc/yum.repos.d/CentOS-OpenStack-rocky.repo CentOS-OpenStack-rocky.repo                                                                 100% 1261   832.6KB/s   00:00     [root@node01 ~]# scp /etc/yum.repos.d/CentOS-OpenStack-rocky.repo node03:/etc/yum.repos.d/CentOS-OpenStack-rocky.repo CentOS-OpenStack-rocky.repo                                                                 100% 1261   387.4KB/s   00:00     [root@node01 ~]#  

  提示:复制要在后两个节点都装了centos-release-openstack-rocky这个包以后,以免后续装包覆盖仓库地址文件;

  3、在各节点安装python-openstackclient和openstack-selinux包

[root@node01 ~]# yum install -y python-openstackclient openstack-selinux 

  4、在node02上部署mariadb-server

  先查看mariadb-server这个包是否来自openstack-rocky这个仓库

云计算管理平台之OpenStack简介及基础环境搭建

  提示:如果能够看到mariadb-server这个包来自centos-openstack-rocky这个仓库,说明我们配置的仓库没有问题;这里建议尽量使用openstacke-rocky仓库中提供的包,如果其他仓库提供的包可能存在不兼容的问题;

  下载安装mairadb-server

[root@node02 ~]# yum install mariadb-server -y Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * base: mirrors.aliyun.com  * centos-qemu-ev: mirrors.aliyun.com  * extras: mirrors.aliyun.com  * updates: mirrors.aliyun.com Resolving Dependencies --> Running transaction check ---> Package mariadb-server.x86_64 3:10.1.20-2.el7 will be installed --> Processing Dependency: mariadb-common(x86-64) = 3:10.1.20-2.el7 for package: 3:mariadb-server-10.1.20-2.el7.x86_64 --> Processing Dependency: mariadb-errmsg(x86-64) = 3:10.1.20-2.el7 for package: 3:mariadb-server-10.1.20-2.el7.x86_64 --> Processing Dependency: mysql(x86-64) for package: 3:mariadb-server-10.1.20-2.el7.x86_64 --> Processing Dependency: mysql-compat-client(x86-64) for package: 3:mariadb-server-10.1.20-2.el7.x86_64 --> Processing Dependency: perl(DBD::mysql) for package: 3:mariadb-server-10.1.20-2.el7.x86_64 --> Processing Dependency: perl(DBI) for package: 3:mariadb-server-10.1.20-2.el7.x86_64 --> Processing Dependency: perl(Data::Dumper) for package: 3:mariadb-server-10.1.20-2.el7.x86_64 --> Processing Dependency: rsync for package: 3:mariadb-server-10.1.20-2.el7.x86_64 --> Processing Dependency: socat for package: 3:mariadb-server-10.1.20-2.el7.x86_64 --> Running transaction check ---> Package mariadb.x86_64 3:10.1.20-2.el7 will be installed --> Processing Dependency: mariadb-libs(x86-64) = 3:10.1.20-2.el7 for package: 3:mariadb-10.1.20-2.el7.x86_64 ……省略部分内容…… Installed:   mariadb-server.x86_64 3:10.1.20-2.el7                                                                                         Dependency Installed:   mariadb.x86_64 3:10.1.20-2.el7                                 mariadb-common.x86_64 3:10.1.20-2.el7                           mariadb-config.x86_64 3:10.1.20-2.el7                          mariadb-errmsg.x86_64 3:10.1.20-2.el7                           perl-Compress-Raw-Bzip2.x86_64 0:2.061-3.el7                   perl-Compress-Raw-Zlib.x86_64 1:2.061-4.el7                     perl-DBD-MySQL.x86_64 0:4.023-6.el7                            perl-DBI.x86_64 0:1.627-4.el7                                   perl-Data-Dumper.x86_64 0:2.145-3.el7                          perl-IO-Compress.noarch 0:2.061-2.el7                           perl-Net-Daemon.noarch 0:0.48-5.el7                            perl-PlRPC.noarch 0:0.2020-14.el7                               rsync.x86_64 0:3.1.2-10.el7                                    socat.x86_64 0:1.7.3.2-2.el7                                   Dependency Updated:   mariadb-libs.x86_64 3:10.1.20-2.el7                                                                                           Complete! [root@node02 ~]#  

  配置数据库

[root@node02 ~]# cat /etc/my.cnf.d/openstack.cnf  [mysqld] bind-address = 0.0.0.0  default-storage-engine = innodb innodb_file_per_table = on max_connections = 4096 collation-server = utf8_general_ci character-set-server = utf8 [root@node02 ~]#  

  设置mariadb-server开机启动,并启动mairadb-server

[root@node02 ~]# systemctl enable mariadb.service  Created symlink from /etc/systemd/system/multi-user.target.wants/mariadb.service to /usr/lib/systemd/system/mariadb.service. [root@node02 ~]# systemctl start mariadb.service        [root@node02 ~]# ss -tnl State      Recv-Q Send-Q                  Local Address:Port                                 Peer Address:Port               LISTEN     0      128                                 *:22                                              *:*                   LISTEN     0      100                         127.0.0.1:25                                              *:*                   LISTEN     0      128                                 *:3306                                            *:*                   LISTEN     0      128                                :::22                                             :::*                   LISTEN     0      100                               ::1:25                                             :::*                   [root@node02 ~]#  

  5、在node01上安装python2-PyMySQL包,用于控制节点连接数据库驱动

[root@node01 ~]# yum install -y python2-PyMySQL Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * base: mirrors.aliyun.com  * centos-qemu-ev: mirrors.aliyun.com  * extras: mirrors.aliyun.com  * updates: mirrors.aliyun.com Resolving Dependencies --> Running transaction check ---> Package python2-PyMySQL.noarch 0:0.9.3-1.el7 will be installed --> Finished Dependency Resolution  Dependencies Resolved  ==============================================================================================================================  Package                            Arch                      Version                           Repository               Size ============================================================================================================================== Installing:  python2-PyMySQL                    noarch                    0.9.3-1.el7                       epel                     91 k  Transaction Summary ============================================================================================================================== Install  1 Package  Total download size: 91 k Installed size: 372 k Downloading packages: python2-PyMySQL-0.9.3-1.el7.noarch.rpm                                                                 |  91 kB  00:00:00      Running transaction check Running transaction test Transaction test succeeded Running transaction   Installing : python2-PyMySQL-0.9.3-1.el7.noarch                                                                         1/1    Verifying  : python2-PyMySQL-0.9.3-1.el7.noarch                                                                         1/1   Installed:   python2-PyMySQL.noarch 0:0.9.3-1.el7                                                                                          Complete! [root@node01 ~]#  

  6、在node02上部署memcached

[root@node02 ~]# yum install memcached -y Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * base: mirrors.aliyun.com  * centos-qemu-ev: mirrors.aliyun.com  * extras: mirrors.aliyun.com  * updates: mirrors.aliyun.com Resolving Dependencies --> Running transaction check ---> Package memcached.x86_64 0:1.5.6-1.el7 will be installed --> Finished Dependency Resolution  Dependencies Resolved  ==============================================================================================================================  Package                   Arch                   Version                        Repository                              Size ============================================================================================================================== Installing:  memcached                 x86_64                 1.5.6-1.el7                    centos-openstack-rocky                 124 k  Transaction Summary ============================================================================================================================== Install  1 Package  Total download size: 124 k Installed size: 268 k Downloading packages: memcached-1.5.6-1.el7.x86_64.rpm                                                                       | 124 kB  00:00:00      Running transaction check Running transaction test Transaction test succeeded Running transaction   Installing : memcached-1.5.6-1.el7.x86_64                                                                               1/1    Verifying  : memcached-1.5.6-1.el7.x86_64                                                                               1/1   Installed:   memcached.x86_64 0:1.5.6-1.el7                                                                                                Complete! [root@node02 ~]#  

  配置memcached

[root@node02 ~]# cat /etc/sysconfig/memcached PORT="11211" USER="memcached" MAXCONN="4096" CACHESIZE="1024" OPTIONS="-l 0.0.0.0,::1" [root@node02 ~]#  

  设置memcached开机启动,并启动memcached服务

[root@node02 ~]# systemctl enable memcached.service Created symlink from /etc/systemd/system/multi-user.target.wants/memcached.service to /usr/lib/systemd/system/memcached.service. [root@node02 ~]# systemctl start memcached.service  [root@node02 ~]# ss -tnl State      Recv-Q Send-Q                  Local Address:Port                                 Peer Address:Port               LISTEN     0      128                                 *:11211                                           *:*                   LISTEN     0      128                                 *:22                                              *:*                   LISTEN     0      100                         127.0.0.1:25                                              *:*                   LISTEN     0      128                                 *:3306                                            *:*                   LISTEN     0      128                               ::1:11211                                          :::*                   LISTEN     0      128                                :::22                                             :::*                   LISTEN     0      100                               ::1:25                                             :::*                   [root@node02 ~]#  

  7、在node01上安装连接memcached驱动,python-memcached

[root@node01 ~]# yum install -y python-memcached Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * base: mirrors.aliyun.com  * centos-qemu-ev: mirrors.aliyun.com  * extras: mirrors.aliyun.com  * updates: mirrors.aliyun.com Resolving Dependencies --> Running transaction check ---> Package python-memcached.noarch 0:1.58-1.el7 will be installed --> Finished Dependency Resolution  Dependencies Resolved  ==============================================================================================================================  Package                         Arch                  Version                    Repository                             Size ============================================================================================================================== Installing:  python-memcached                noarch                1.58-1.el7                 centos-openstack-rocky                 38 k  Transaction Summary ============================================================================================================================== Install  1 Package  Total download size: 38 k Installed size: 123 k Downloading packages: python-memcached-1.58-1.el7.noarch.rpm                                                                 |  38 kB  00:00:00      Running transaction check Running transaction test Transaction test succeeded Running transaction   Installing : python-memcached-1.58-1.el7.noarch                                                                         1/1    Verifying  : python-memcached-1.58-1.el7.noarch                                                                         1/1   Installed:   python-memcached.noarch 0:1.58-1.el7                                                                                          Complete! [root@node01 ~]#  

  8、在node02上部署rabbitmq-server

[root@node02 ~]# yum install rabbitmq-server -y Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  * base: mirrors.aliyun.com  * centos-qemu-ev: mirrors.aliyun.com  * extras: mirrors.aliyun.com  * updates: mirrors.aliyun.com Resolving Dependencies --> Running transaction check ---> Package rabbitmq-server.noarch 0:3.6.16-1.el7 will be installed --> Processing Dependency: erlang-eldap >= 18 for package: rabbitmq-server-3.6.16-1.el7.noarch --> Processing Dependency: erlang-erts >= 18 for package: rabbitmq-server-3.6.16-1.el7.noarch --> Processing Dependency: erlang-kernel >= 18 for package: rabbitmq-server-3.6.16-1.el7.noarch --> Processing Dependency: erlang-mnesia >= 18 for package: rabbitmq-server-3.6.16-1.el7.noarch --> Processing Dependency: erlang-os_mon >= 18 for package: rabbitmq-server-3.6.16-1.el7.noarch --> Processing Dependency: erlang-public_key >= 18 for package: rabbitmq-server-3.6.16-1.el7.noarch ……省略部分内容…… Installed:   rabbitmq-server.noarch 0:3.6.16-1.el7                                                                                         Dependency Installed:   erlang-asn1.x86_64 0:19.3.6.4-1.el7                             erlang-compiler.x86_64 0:19.3.6.4-1.el7                        erlang-crypto.x86_64 0:19.3.6.4-1.el7                           erlang-eldap.x86_64 0:19.3.6.4-1.el7                           erlang-erts.x86_64 0:19.3.6.4-1.el7                             erlang-hipe.x86_64 0:19.3.6.4-1.el7                            erlang-inets.x86_64 0:19.3.6.4-1.el7                            erlang-kernel.x86_64 0:19.3.6.4-1.el7                          erlang-mnesia.x86_64 0:19.3.6.4-1.el7                           erlang-os_mon.x86_64 0:19.3.6.4-1.el7                          erlang-otp_mibs.x86_64 0:19.3.6.4-1.el7                         erlang-public_key.x86_64 0:19.3.6.4-1.el7                      erlang-runtime_tools.x86_64 0:19.3.6.4-1.el7                    erlang-sasl.x86_64 0:19.3.6.4-1.el7                            erlang-sd_notify.x86_64 0:1.0-2.el7                             erlang-snmp.x86_64 0:19.3.6.4-1.el7                            erlang-ssl.x86_64 0:19.3.6.4-1.el7                              erlang-stdlib.x86_64 0:19.3.6.4-1.el7                          erlang-syntax_tools.x86_64 0:19.3.6.4-1.el7                     erlang-tools.x86_64 0:19.3.6.4-1.el7                           erlang-xmerl.x86_64 0:19.3.6.4-1.el7                            lksctp-tools.x86_64 0:1.0.17-2.el7                            Complete! [root@node02 ~]#  

  设置rabbitmq-server开机启动,并启动mabbitmq-server服务

[root@node02 ~]# systemctl enable rabbitmq-server.service Created symlink from /etc/systemd/system/multi-user.target.wants/rabbitmq-server.service to /usr/lib/systemd/system/rabbitmq-server.service. [root@node02 ~]# systemctl start rabbitmq-server.service  [root@node02 ~]# ss -tnl State      Recv-Q Send-Q                  Local Address:Port                                 Peer Address:Port               LISTEN     0      128                                 *:11211                                           *:*                   LISTEN     0      128                                 *:4369                                            *:*                   LISTEN     0      128                                 *:22                                              *:*                   LISTEN     0      100                         127.0.0.1:25                                              *:*                   LISTEN     0      128                                 *:25672                                           *:*                   LISTEN     0      128                                 *:3306                                            *:*                   LISTEN     0      128                               ::1:11211                                          :::*                   LISTEN     0      128                                :::22                                             :::*                   LISTEN     0      100                               ::1:25                                             :::*                   LISTEN     0      128                                :::5672                                           :::*                   [root@node02 ~]#  

  创建openstack用户并设置密码为openstack123

[root@node02 ~]# rabbitmqctl add_user openstack openstack123 Creating user "openstack" [root@node02 ~]# rabbitmqctl list_users Listing users openstack       [] guest   [administrator] [root@node02 ~]#  

  授权openstack用户对/下的所有文件有读写

[root@node02 ~]# rabbitmqctl set_permissions openstack ".*" ".*" ".*" Setting permissions for user "openstack" in vhost "/" [root@node02 ~]# rabbitmqctl list_permissions Listing permissions in vhost "/" guest   .*      .*      .* openstack       .*      .*      .* [root@node02 ~]#  

  到此,openstack的基础环境和数据库节点就准备ok了,后续我们就可以在逐一安装各个控制节点上的服务和计算节点上的服务;

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未经允许不得转载:张拓的天空 » 云计算管理平台之OpenStack简介及基础环境搭建
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