KVM虚拟化

浅浅的花香味﹌ 2023-03-04 13:28 78阅读 0赞

### KVM虚拟化 ###

*  
 *   *  
     *   *  
 *  虚拟化介绍
 *  kvm介绍
 *  1.KVM安装
 *  2.kvm web管理界面安装
 *  3.添加虚拟机
 *   *  3.1登录
     *   *  A.案例1
     *  3.2.添加虚拟机
 *  4.配置虚拟机
 *   *  4.1创建存储池
     *  4.2添加镜像
     *  4.3添加网络池
     *  4.4.配置虚拟机
 *  5.启动
 *   *   *  B.案例2
 *  6.完成

#  #

##  ##

###  ###

# 虚拟化介绍 #

*虚拟化是云计算的基础。简单的说，虚拟化使得在一台物理的服务器上可以跑多台虚拟机，虚拟机共享物理机的 CPU、内存、IO 硬件资源，但逻辑上虚拟机之间是相互隔离的。*

***物理机我们一般称为宿主机（Host），宿主机上面的虚拟机称为客户机（Guest）。***

*宿主机（Host）是通过一个叫做 **Hypervisor** 的程序实现硬件资源虚拟化，并提供给客户机(Guest) 使用的*

***根据 Hypervisor 的实现方式和所处的位置，虚拟化又分为两种：***

***全虚拟化  
半虚拟化***

**全虚拟化：**  
*Hypervisor 直接安装在物理机上，多个虚拟机在 Hypervisor 上运行。Hypervisor 实现方式一般是一个特殊定制的 Linux 系统。Xen 和 VMWare 的 ESXi 都属于这个类型*  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70]  
   
   
**半虚拟化：**  
*物理机上首先安装常规的操作系统，比如 Redhat、Ubuntu 和 Windows。Hypervisor 作为 OS 上的一个程序模块运行，并对管理虚拟机进行管理。KVM、VirtualBox 和 VMWare Workstation 都属于这个类型*  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 1]

# kvm介绍 #

*kVM 全称是 Kernel-Based Virtual Machine。也就是说 KVM 是基于 Linux 内核实现的。*  
*KVM有一个内核模块叫 kvm.ko，只用于管理虚拟 CPU 和内存。*  
   
*那 IO 的虚拟化，比如存储和网络设备则是由 Linux 内核与Qemu来实现。*  
   
***作为一个 Hypervisor，KVM 本身只关注虚拟机调度和内存管理这两个方面。IO 外设的任务交给 Linux 内核和 Qemu。***  
   
大家在网上看 KVM 相关文章的时候肯定经常会看到 Libvirt 这个东西，***Libvirt 就是 KVM 的管理工具***。  
   
*其实，Libvirt 除了能管理 KVM 这种 Hypervisor，还能管理 Xen，VirtualBox 等。*

**Libvirt 包含 3 个东西：后台 daemon 程序 libvirtd、API 库和命令行工具 virsh**

*libvirtd是服务程序，接收和处理 API 请求；*  
*API 库使得其他人可以开发基于Libvirt的高级工具，比如 virt-manager,这是个图形化的KVM管理工具*  
*virsh 是我们经常要用的 KVM 命令行工具*

# 1.KVM安装 #

关闭防火墙和selinux
    [root@zyy180 ~]# systemctl stop firewalld
    [root@zyy180 ~]# systemctl disable firewalld
    Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
    Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
    [root@zyy180 ~]# setenforce 0
    [root@zyy180 ~]# sed -ri 's/^(SELINUX=).*/\1disabled/g' /etc/selinux/config
    [root@zyy180 ~]# reboot
    
    
    
    
    下载网络源
    [root@zyy180 ~]# curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
    
    [root@zyy180 ~]# sed -i 's/\$releasever/7/g' /etc/yum.repos.d/Centos-7.repo
    [root@zyy180 ~]# sed -i 's/^enabled=.*/enabled=1/g' /etc/yum.repos.d/Centos-7.repo
    
    
    
    建立缓存
    [root@zyy180 ~]# yum makecache fast
    
    
    
    下载所需软件
    [root@zyy180 ~]# yum -y install epel-release vim wget net-tools unzip zip gcc gcc-c++
    
    
    
    
    验证CPU是否支持KVM；如果结果中有vmx（Intel）或svm(AMD)字样，就说明CPU的支持的
    [root@zyy180 ~]# egrep -o 'vmx|svm' /proc/cpuinfo
    vmx
    vmx
    vmx
    vmx
    
    
    
    
    1.kvm安装
    [root@zyy180 ~]# yum -y install qemu-kvm qemu-kvm-tools qemu-img virt-manager libvirt libvirt-python libvirt-client virt-install virt-viewer bridge-utils libguestfs-tools
    
    
    
    
    
    
    
    
    2.这里一般是要用桥接网卡，保证虚拟机和公司网络在同一网段
    root@zyy180 ~]# cd /etc/sysconfig/network-scripts/
    [root@zyy180 network-scripts]# cp ifcfg-ens33 ifcfg-br0
    TYPE="Bridge"
    NM_CONTROLLED=no
    BOOTPROTO="static"
    DEFROUTE="yes"
    NAME="br0"
    DEVICE="br0"
    ONBOOT="yes"
    IPADDR=192.168.30.150
    NETMASK=255.255.255.0
    GATEWAY=192.168.30.2
    DNS1=114.114.114.114
    
    
    
    
    [root@zyy180 network-scripts]# vim ifcfg-ens33 
    TYPE="Ethernet"
    BOOTPROTO="static"
    NAME="ens33"
    DEVICE="ens33"
    ONBOOT="yes"
    BRIDGE=br0
    NM_CONTROLLED=no
    
    
    
    
    
    查看网卡信息
    [root@zyy180 ~]# ip a
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
        inet 127.0.0.1/8 scope host lo
           valid_lft forever preferred_lft forever
        inet6 ::1/128 scope host 
           valid_lft forever preferred_lft forever
    2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP qlen 1000
        link/ether 00:0c:29:50:dc:de brd ff:ff:ff:ff:ff:ff
        inet6 fe80::20c:29ff:fe50:dcde/64 scope link 
           valid_lft forever preferred_lft forever
    3: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000
        link/ether 00:0c:29:50:dc:de brd ff:ff:ff:ff:ff:ff
        inet 192.168.30.150/24 brd 192.168.30.255 scope global br0
           valid_lft forever preferred_lft forever
        inet6 fe80::20c:29ff:fe50:dcde/64 scope link 
           valid_lft forever preferred_lft forever
    
    
    
    [root@zyy180 ~]# systemctl  restart network
    
    
    
    
    
    重启libvirtd服务
    [root@zyy180 ~]# systemctl start libvirtd
    [root@zyy180 ~]# systemctl enable libvirtd
    
    
    
    
    
    验证安装结果
    [root@zyy180 ~]# lsmod|grep kvm
    kvm_intel             170086  0 
    kvm                   566340  1 kvm_intel
    irqbypass              13503  1 kvm
    
    
    
    
    
    
    
    /测试并验证安装结果
    [root@zyy180 ~]# virsh -c qemu:///system list
     Id    名称                         状态
    ----------------------------------------------------
    
    
    
    [root@zyy180 ~]# virsh --version
    4.5.0
    
    
    [root@zyy180 ~]# virt-install --version
    1.5.0
    
    
    
    
    
    
    3.做个软连接，保证系统能找到qemu-kvm
    [root@zyy180 ~]# ln -s /usr/libexec/qemu-kvm /usr/bin/qemu-kvm
    
    
    
    
    查看网桥信息
    [root@zyy180 ~]# brctl show
    bridge name     bridge id               STP enabled     interfaces
    br0             8000.000c2950dcde       no              ens33
    virbr0          8000.525400597859       yes             virbr0-nic

# 2.kvm web管理界面安装 #

1.安装依赖包
    [root@zyy180 ~]# yum -y install git python-pip libvirt-python libxml2-python python-websockify supervisor nginx python-devel
    
    
    
    
    
    
    2.升级pip
    [root@zyy180 ~]# pip install --upgrade pip -i https://pypi.tuna.tsinghua.edu.cn/simple/
    Collecting pip
      Downloading https://pypi.tuna.tsinghua.edu.cn/packages/36/74/38c2410d688ac7b48afa07d413674afc1f903c1c1f854de51dc8eb2367a5/pip-20.2-py2.py3-none-any.whl (1.5MB)
        100% |████████████████████████████████| 1.5MB 593kB/s 
    Installing collected packages: pip
      Found existing installation: pip 8.1.2
        Uninstalling pip-8.1.2:
          Successfully uninstalled pip-8.1.2
    Successfully installed pip-20.2
    
    
    
    
    
    
    
    2.从github上下载webvirtmgr代码
    [root@zyy180 ~]# cd /usr/local/src/
    [root@zyy180 src]# git clone git://github.com/retspen/webvirtmgr.git
    正克隆到 'webvirtmgr'...
    remote: Enumerating objects: 5614, done.
    remote: Total 5614 (delta 0), reused 0 (delta 0), pack-reused 5614
    接收对象中: 100% (5614/5614), 2.98 MiB | 10.00 KiB/s, done.
    处理 delta 中: 100% (3602/3602), done.
       
    
    
    
    
    
    
    3.安装webvirtmgr
    [root@zyy180 webvirtmgr]# pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple/
    
    
    
    
    
    
    
    检查sqlite3是否安装
    [root@zyy180 ~]# python
    Python 2.7.5 (default, Apr  2 2020, 13:16:51) 
    [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux2
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import sqlite3
    >>> exit()
    
    
    
    
    
    
    
    4.初始化帐号信息
    [root@zyy180 webvirtmgr]# python manage.py syncdb
    
    WARNING:root:No local_settings file found.
    Creating tables ...
    Creating table auth_permission
    Creating table auth_group_permissions
    Creating table auth_group
    Creating table auth_user_groups
    Creating table auth_user_user_permissions
    Creating table auth_user
    Creating table django_content_type
    Creating table django_session
    Creating table django_site
    Creating table servers_compute
    Creating table instance_instance
    Creating table create_flavor
    
    You just installed Django's auth system, which means you don't have any superusers defined.
    Would you like to create one now? (yes/no): yes
    Username (leave blank to use 'root'): 
    Email address: 1412@qq.com
    Password: 
    Password (again): 
    Superuser created successfully.
    Installing custom SQL ...
    Installing indexes ...
    Installed 6 object(s) from 1 fixture(s)
    
    
    
    
    
    
    
    
    5.拷贝web网页至指定目录
    [root@zyy180 webvirtmgr]# mkdir /var/www
    
    [root@zyy180 webvirtmgr]# cp -r /usr/local/src/webvirtmgr/ /var/www/
    
    [root@zyy180 webvirtmgr]# chown -R nginx.nginx /var/www/webvirtmgr/
    
    
    
    
    
    
    6.生成密钥
    [root@zyy180 ~]# ssh-keygen -t rsa
    Generating public/private rsa key pair.
    Enter file in which to save the key (/root/.ssh/id_rsa): 
    Created directory '/root/.ssh'.
    Enter passphrase (empty for no passphrase): 
    Enter same passphrase again: 
    Your identification has been saved in /root/.ssh/id_rsa.
    Your public key has been saved in /root/.ssh/id_rsa.pub.
    The key fingerprint is:
    SHA256:jhkhq3fzTKROVjeyfATLMeBuxA6V+3QQYwkEtlj6l6k root@zyy180
    The key's randomart image is:
    +---[RSA 2048]----+
    |    +o=o+o       |
    |   = =.oo.       |
    |  o + =.+.       |
    |   . B.=.=.      |
    |    o OoS.+      |
    |   . + X.= .     |
    |  . E O = .      |
    |   . = = .       |
    |      . o        |
    +----[SHA256]-----+
    
    
    
    
    
    
    
    
    7.做互信，
    这里webvirtmgr和kvm服务部署在同一台主机上，所以地址为本地地址
    如果kvm部署在其他主机  地址改为kvm主机
    
    
    [root@zyy180 ~]# ssh-copy-id 192.168.30.150
    
    /usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
    The authenticity of host '192.168.30.150 (192.168.30.150)' can't be established.
    ECDSA key fingerprint is SHA256:bGJka92FBGDxlsCxrm6FWR/nryT8gK/uWC/jwUe37Uw.
    ECDSA key fingerprint is MD5:46:4e:e1:0e:e5:0e:b4:8f:b3:a8:cd:5d:7d:5b:22:2f.
    Are you sure you want to continue connecting (yes/no)? yes
    /usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
    /usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
    root@192.168.30.150's password: 
    
    Number of key(s) added: 1
    
    Now try logging into the machine, with:   "ssh '192.168.30.150'"
    and check to make sure that only the key(s) you wanted were added.
    
    
    
    
    
    
    8.配置端口转发
    [root@zyy180 ~]# ssh 192.168.30.150 -L localhost:8000:localhost:8000 -L localhost:6080:localhost:60
    Last login: Mon Aug  3 19:57:21 2020 from 192.168.30.1
    
    
    
    
    
    [root@zyy180 ~]# ss -anlt
    State      Recv-Q Send-Q Local Address:Port               Peer Address:Port              
    LISTEN     0      128               *:111                           *:*                  
    LISTEN     0      5      192.168.122.1:53                            *:*                  
    LISTEN     0      128               *:22                            *:*                  
    LISTEN     0      100       127.0.0.1:25                            *:*                  
    LISTEN     0      128               *:8000                          *:*                  
    LISTEN     0      100               *:6080                          *:*                  
    LISTEN     0      128              :::111                          :::*                  
    LISTEN     0      128              :::22                           :::*                  
    LISTEN     0      100             ::1:25                           :::*  
    
    
    
    
    
    
    
    
    
    9.配置nginx
    [root@zyy180 ~]# vim /etc/nginx/nginx.conf
    user nginx;
    worker_processes auto;
    error_log /var/log/nginx/error.log;
    pid /run/nginx.pid;
    
    include /usr/share/nginx/modules/*.conf;
    
    events {
        worker_connections 1024;
    }
    
    http {
        log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                          '$status $body_bytes_sent "$http_referer" '
                          '"$http_user_agent" "$http_x_forwarded_for"';
    
        access_log  /var/log/nginx/access.log  main;
    
        sendfile            on;
        tcp_nopush          on;
        tcp_nodelay         on;
        keepalive_timeout   65;
        types_hash_max_size 2048;
    
        include             /etc/nginx/mime.types;
        default_type        application/octet-stream;
    
        include /etc/nginx/conf.d/*.conf;
    
        server {
            listen       80;
            server_name  localhost;
    
            include /etc/nginx/default.d/*.conf;
    
            location / {
                root html;
                index index.html index.htm;
            }
    
            error_page 404 /404.html;
                location = /40x.html {
            }
    
            error_page 500 502 503 504 /50x.html;
                location = /50x.html {
            }
        }
    }
    
    
    
    
    
    
    
    
    
    
    [root@zyy180 ~]# vim /etc/nginx/conf.d/webvirtmgr.conf
    server {
        listen 80 default_server;
    
        server_name $hostname;
        #access_log /var/log/nginx/webvirtmgr_access_log;
    
        location /static/ {
            root /var/www/webvirtmgr/webvirtmgr;
            expires max;
        }
    
        location / {
            proxy_pass http://127.0.0.1:8000;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-for $proxy_add_x_forwarded_for;
            proxy_set_header Host $host:$server_port;
            proxy_set_header X-Forwarded-Proto $remote_addr;
            proxy_connect_timeout 600;
            proxy_read_timeout 600;
            proxy_send_timeout 600;
            client_max_body_size 1024M;
        }
    }
    
    
    
    
    
    
    确保bind绑定的是本机的8000端口
    [root@zyy180 ~]# vim /var/www/webvirtmgr/conf/gunicorn.conf.py
    bind = '0.0.0.0:8000'
    
    
    
    
    
    
    10.重启nginx
    [root@zyy180 ~]# systemctl restart nginx
    
    
    
    
    
    
    [root@zyy180 ~]# ss -anlt
    State      Recv-Q Send-Q Local Address:Port               Peer Address:Port              
    LISTEN     0      128               *:80                            *:*                  
    LISTEN     0      5      192.168.122.1:53                            *:*                  
    LISTEN     0      128               *:22                            *:*                  
    LISTEN     0      100       127.0.0.1:25                            *:*                  
    LISTEN     0      128       127.0.0.1:6080                          *:*                  
    LISTEN     0      128       127.0.0.1:8000                          *:*                  
    LISTEN     0      128              :::22                           :::*                  
    LISTEN     0      100             ::1:25                           :::*                  
    LISTEN     0      128             ::1:6080                         :::*                  
    LISTEN     0      128             ::1:8000                         :::*      
    
    
    
    
    
    
    
    
    11.设置supervisor
    [root@zyy180 ~]# vim /etc/supervisord.conf
    [program:webvirtmgr]
    command=/usr/bin/python2 /var/www/webvirtmgr/manage.py run_gunicorn -c /var/www/webvirtmgr/conf/gunicorn.conf.py
    directory=/var/www/webvirtmgr
    autostart=true
    autorestart=true
    logfile=/var/log/supervisor/webvirtmgr.log
    log_stderr=true
    user=nginx
    
    [program:webvirtmgr-console]
    command=/usr/bin/python2 /var/www/webvirtmgr/console/webvirtmgr-console
    directory=/var/www/webvirtmgr
    autostart=true
    autorestart=true
    stdout_logfile=/var/log/supervisor/webvirtmgr-console.log
    redirect_stderr=true
    user=nginx
    
    
    
    
    
    
    12.启动supervisor并设置开机自启
    [root@zyy180 ~]# systemctl enable supervisord
    
    [root@zyy180 ~]# systemctl start supervisord
    
    
    
    
    
    
    
    [root@zyy180 ~]# ss -anlt
    State      Recv-Q Send-Q Local Address:Port               Peer Address:Port              
    LISTEN     0      128               *:111                           *:*                  
    LISTEN     0      128               *:80                            *:*                  
    LISTEN     0      5      192.168.122.1:53                            *:*                  
    LISTEN     0      128               *:22                            *:*                  
    LISTEN     0      100       127.0.0.1:25                            *:*                  
    LISTEN     0      128               *:8000                          *:*                  
    LISTEN     0      100               *:6080                          *:*                  
    LISTEN     0      128              :::111                          :::*                  
    LISTEN     0      128              :::22                           :::*                  
    LISTEN     0      100             ::1:25                           :::*    
    
    
    
    
    
    13.配置nginx用户
    [root@zyy180 ~]# su - nginx -s /bin/bash
    
    -bash-4.2$ ssh-keygen -t rsa
    
    Generating public/private rsa key pair.
    Enter file in which to save the key (/var/lib/nginx/.ssh/id_rsa): 
    Created directory '/var/lib/nginx/.ssh'.
    Enter passphrase (empty for no passphrase): 
    Enter same passphrase again: 
    Your identification has been saved in /var/lib/nginx/.ssh/id_rsa.
    Your public key has been saved in /var/lib/nginx/.ssh/id_rsa.pub.
    The key fingerprint is:
    SHA256:ohczhDrvonTF5b6Q2+8Zqij2eIu4C7yQRT9QnNynF/k nginx@zyy180
    The key's randomart image is:
    +---[RSA 2048]----+
    |   o.o   .       |
    |   .+.. +        |
    |  o . .+ o       |
    | . +..+ . E      |
    |  + oo=oS        |
    |.o o.oo=         |
    |+o .oo.. .       |
    |=o*o..+ o o      |
    |*B+=oo.+o+       |
    +----[SHA256]-----+
    
    
    
    -bash-4.2$ touch ~/.ssh/config
    
    -bash-4.2$ echo -e "StrictHostKeyChecking=no\nUserKnownHostsFile=/dev/null" >> ~/.ssh/config
    
    
    
    -bash-4.2$ chmod 0600 ~/.ssh/config
    
    
    -bash-4.2$ ssh-copy-id root@192.168.30.150
    
    /bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/var/lib/nginx/.ssh/id_rsa.pub"
    /bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
    /bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
    Warning: Permanently added '192.168.30.150' (ECDSA) to the list of known hosts.
    root@192.168.30.150's password: 
    
    Number of key(s) added: 1
    
    Now try logging into the machine, with:   "ssh 'root@192.168.30.150'"
    and check to make sure that only the key(s) you wanted were added.
    
    
    -bash-4.2$ exit
    登出
    
    
    
    
    [root@zyy180 ~]# vim /etc/polkit-1/localauthority/50-local.d/50-libvirt-remote-access.pkla
    [Remote libvirt SSH access]
    Identity=unix-user:root
    Action=org.libvirt.unix.manage
    ResultAny=yes
    ResultInactive=yes
    ResultActive=yes
    
    
    
    
    
    [root@zyy180 ~]# chown -R root.root /etc/polkit-1/localauthority/50-local.d/50-libvirt-remote-access.pkla
    
    [root@zyy180 ~]# systemctl restart nginx libvirtd
    
    
    
    [root@zyy180 ~]# ss -anlt
    State      Recv-Q Send-Q Local Address:Port               Peer Address:Port              
    LISTEN     0      1                 *:5900                          *:*                  
    LISTEN     0      128               *:111                           *:*                  
    LISTEN     0      128               *:80                            *:*                  
    LISTEN     0      5      192.168.122.1:53                            *:*                  
    LISTEN     0      128               *:22                            *:*                  
    LISTEN     0      100       127.0.0.1:25                            *:*                  
    LISTEN     0      128               *:8000                          *:*                  
    LISTEN     0      100               *:6080                          *:*                  
    LISTEN     0      128              :::111                          :::*                  
    LISTEN     0      128              :::22                           :::*                  
    LISTEN     0      100             ::1:25                           :::*

# 3.添加虚拟机 #

## 3.1登录 ##

***http://192.168.30.150***

### A.案例1 ###

***第一次可能会出现这种情况***  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 2]

[root@zyy180 ~]# vim /etc/nginx/nginx.conf
    
    user nginx;
    worker_processes auto;
    error_log /var/log/nginx/error.log;
    pid /run/nginx.pid;
    worker_rlimit_nofile 655350;     添加这行
    
    
    
    
    [root@zyy180 ~]# vim /etc/security/limits.conf
    * soft nofile 655350
    * hard nofile 655350
    
    
    
    
    重启服务
    [root@zyy180 ~]# systemctl restart nginx

***再次登录***  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 3]

## 3.2.添加虚拟机 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 4]

***连接宿主机***

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 5]  
   
   
***点击网址***

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 6]

# 4.配置虚拟机 #

## 4.1创建存储池 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 7]

***路径是镜像所在目录***  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 8]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 9]  
   
   
   
**将镜像传送到该目录下**

[root@zyy180 zyy]# ls
    
    rhel-server-7.4-x86_64-dvd.iso

## 4.2添加镜像 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 10]  
   
   
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 11]  
   
   
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 12]

## 4.3添加网络池 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 13]  
   
   
***网络类型选BRIDGE***

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 14]  
   
   
***网络池配置完成***

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 15]

## 4.4.配置虚拟机 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 16]  
   
   
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 17]

***磁盘镜像选择刚创建的vm1  
网络池选择刚创建的br0***

**!注意 虚拟cpu的数量要与宿主机的cpu数量一致，否则在安装时会报错**

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 18]  
   
   
***将镜像开启***

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 19]  
   
   
***(已断开)是开启状态***

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 20]  
   
   
***网页登录密码(可做可不做)***

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 21]

# 5.启动 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 22]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 23]

### B.案例2 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 24]

[root@zyy180 zyy]# yum -y install novnc
    
    [root@zyy180 zyy]# chmod +x /etc/rc.d/rc.local
    
    
    [root@zyy180 zyy]# vim /etc/rc.d/rc.local
    touch /var/lock/subsys/local
    nohup novnc_server 192.168.30.150:5920 &  ##添加此行
    
    
    [root@zyy180 zyy]# source /etc/rc.d/rc.local

# 6.完成 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 25]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p5eTEzMDk4OA_size_16_color_FFFFFF_t_70 26]

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