Kvm与webvirtmgr虚拟化安装

请直接去网盘下载安装说明文档，下面的缺乏图片，下载后可以直接安装
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提取码：1234

一、环境准备

设备：Centos7服务器

网络：可访外网

二、文件准备

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三、开始安装

1. 环境校验

部署前请确保你的CPU虚拟化功能已开启。分为两种情况：

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验证方式：

cat /proc/cpuinfo | egrep 'vmx|svm'

结果：

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如果结果有过滤出vmx或者svm的关键字代表支持虚拟化，vmx是Intel的CPU，svm是 AMD的CPU。

查看是否已加载kvm

lsmod | grep kvm 
# 若未加载则执行 
modprobe kvm 

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关闭selinux

避免后续出现各种问题，如果可以则也可关闭防火墙

查看状态

getenforce

下图为已开启

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# 临时关闭 
setenforce 0 
# 永久关闭（需要重启） 
sed -i '/SELINUX/s/enforcing/disabled/' /etc/selinux/config 

2. 更新yum源

将准备好的文件 CentOS7-Base-163.repo 上传至/etc/yum.repos.d/ ，为的是安装python-pip依赖

结果如下:

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更新yum源

yum clean all

yum makecache

结果：

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3. 安装kvm

安装kvm依赖

yum -y install epel-release.noarchyum -y install qemu-kvm qemu-kvm-tools qemu-img virt-manager libvirt libvirt-python libvirt-client virt-install virt-viewer bridge-utils libguestfs-tools

检查依赖是否正确

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查看网卡

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当前使用的是ens33

复制ens33为 br0 为后期虚拟网卡做准备

cd /etc/sysconfig/network-scripts/

cp ifcfg-ens33 ifcfg-br0

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修改ifcfg-br0为以下内容：

TYPE=Bridge
BOOTPROTO=static
NAME=br0
DEVICE=br0
ONBOOT=yes
IPADDR=10.0.1.207
PREFIX=24
GATEWAY=10.0.1.1
DNS1=114.114.114.114

修改ifcfg-ens33为：

TYPE=Ethernet
BOOTPROTO=static
NAME=ens33
DEVICE=ens33
ONBOOT=yes
BRIDGE=br0
NM_CONTROLLED=no

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重启网络

 
systemctl restart network

查看网络状况

 ip a

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启动服务 libvirtd

systemctl enable --now libvirtd

做软连接

[root@kvm network-scripts]# ln -s /usr/libexec/qemu-kvm /usr/bin/qemu-kvm

[root@kvm network-scripts]# ll /usr/bin/qemu-kvm

结果如下：

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4.webvirtmgr管理界面安装

安装依赖包

##注意centos7和8上安装的包名有差异

 yum -y install git python-pip libvirt-python libxml2-python python-websockify supervisor nginx python-devel

将准备好的webvirtmgr-master.zip 上传至 /usr/local/src/ 解压,文件夹webvirtmgr-master改为webvirtmgr

cd  /usr/local/src/

unzip  webvirtmgr-master.zip

mv webvirtmgr-master webvirtmgr

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安装webvirtmgr

 cd webvirtmgr/

 pip install -i https://pypi.douban.com/simple -r requirements.txt 或者  pip install -r requirements.txt

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检查sqlite3是否安装

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初始化账号

./manage.py syncdb

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5.拷贝web网页到指定目录

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[root@kvm webvirtmgr]# mkdir /var/www
[root@kvm webvirtmgr]# cp -r /usr/local/src/webvirtmgr /var/www/
[root@kvm webvirtmgr]# chown -R nginx.nginx /var/www/webvirtmgr/
[root@kvm webvirtmgr]# ll /var/www/
总用量 4
drwxr-xr-x. 19 nginx nginx 4096 6月   7 14:30 webvirtmgr

6.免密登陆配置

ssh-keygen -t rsa

ssh-copy-i ip地址 

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配置端口转发

ssh 10.0.1.207 -L localhost:8000:localhost:8000 -L localhost:6080:localhost:60

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配置nginx

vi /etc/nginx/nginx.conf

修改为一下内容

# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user root; # 如果不是公有云，将 user 改为 root，否则需要花费大量时间解决权限问题。
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/nginx/README.dynamic.
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;

    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;

# 注释掉该文件中的所有 server 配置，注意不要误将最后一个 } 注释掉了
#    server {
#        listen       80 default_server;
#        listen       [::]:80 default_server;
#        server_name  _;
#        root         /usr/share/nginx/html;
#
#        # Load configuration files for the default server block.
#        include /etc/nginx/default.d/*.conf;
#
#        location / {
#        }
#
#        error_page 404 /404.html;
#            location = /40x.html {
#        }
#
#        error_page 500 502 503 504 /50x.html;
#            location = /50x.html {
#        }
#    }

# Settings for a TLS enabled server.
#
#    server {
#        listen       443 ssl http2 default_server;
#        listen       [::]:443 ssl http2 default_server;
#        server_name  _;
#        root         /usr/share/nginx/html;
#
#        ssl_certificate "/etc/pki/nginx/server.crt";
#        ssl_certificate_key "/etc/pki/nginx/private/server.key";
#        ssl_session_cache shared:SSL:1m;
#        ssl_session_timeout  10m;
#        ssl_ciphers HIGH:!aNULL:!MD5;
#        ssl_prefer_server_ciphers on;
#
#        # Load configuration files for the default server block.
#        include /etc/nginx/default.d/*.conf;
#
#        location / {
#        }
#
#        error_page 404 /404.html;
#            location = /40x.html {
#        }
#
#        error_page 500 502 503 504 /50x.html;
#            location = /50x.html {
#        }
#    }

}

配置webvirtmgr.conf

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;
    }
}

启动nginx 并加入自启动

[root@kvm ~]# systemctl restart nginx.service
[root@kvm ~]# systemctl enable nginx.service
Created symlink from /etc/systemd/system/multi-user.target.wants/nginx.service to /usr/lib/systemd/system/nginx.service.
[root@kvm ~]#

设置supervisor

[root@kvm ~]# vim /etc/supervisord.conf
##在最下面加入
[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

##重启supervisor

 systemctl restart supervisord.service
 systemctl enable supervisord.service
 ss -antl

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配置nginx用户

[root@kvm ~]# 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:M+HR5xKs4wmYOFyfzvOJmridq/5cEYIOh81LkvnQA/Q [e-mail]
The key's randomart image is:
+---[RSA 2048]----+
|o.               |
| O..     o       |
|B OEo . o + .    |
| X = = + + +     |
|  B o = S . .    |
|   . o + = .     |
|      = o        |
|   + + + .       |
| .=+Oo. o        |
+----[SHA256]-----+
-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@192.168.10.100
/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 '192.168.10.100' (ECDSA) to the list of known hosts.
root@192.168.10.100's password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'root@192.168.10.100'"
and check to make sure that only the key(s) you wanted were added.

-bash-4.2$ exit
logout
[root@localhost ~]#

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重启nginx和libvirt

[root@kvm~]# systemctl restart nginx.service 

[root@kvm~]# systemctl restart supervisord.service

7. 访问webvirtmgr

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新建连接kvm

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创建存储池

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添加镜像

CentOS-7-x86_64-DVD-2009.iso

将镜像源上传至 /var/lib/libvirt/images

这里我使用ftp上传

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添加虚拟机镜像（就是虚拟机存储所有信息的区，一台虚拟化一个区）

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添加网络

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创建虚拟机

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删除虚拟机

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es

这里我使用ftp上传

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添加虚拟机镜像（就是虚拟机存储所有信息的区，一台虚拟化一个区）

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添加网络

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创建虚拟机

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删除虚拟机

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