#关闭防火墙和selinux
[root@142 ~]# systemctl disable --now firewalld
[root@142 ~]# cat /etc/selinux/config 

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of three values:
#     targeted - Targeted processes are protected,
#     minimum - Modification of targeted policy. Only selected processes are protected. 
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted 
#安装依赖
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@142 ~]# egrep -o ‘vmx|svm‘ /proc/cpuinfo
vmx
vmx
vmx
vmx
vmx
vmx
vmx
vmx

#kvm安装
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

[root@142 ~]# cd /etc/sysconfig/network-scripts/
[root@142 network-scripts]# ls
ifcfg-br0    ifdown-eth   ifdown-post    ifdown-TeamPort  ifup-eth   ifup-plip    ifup-sit       init.ipv6-global
ifcfg-ens33  ifdown-ib    ifdown-ppp     ifdown-tunnel    ifup-ib    ifup-plusb   ifup-Team      network-functions
ifcfg-lo     ifdown-ippp  ifdown-routes  ifup             ifup-ippp  ifup-post    ifup-TeamPort  network-functions-ipv6
ifdown       ifdown-ipv6  ifdown-sit     ifup-aliases     ifup-ipv6  ifup-ppp     ifup-tunnel
ifdown-bnep  ifdown-isdn  ifdown-Team    ifup-bnep        ifup-isdn  ifup-routes  ifup-wireless
[root@142 network-scripts]# cat ifcfg-br0 
TYPE=Bridge
BOOTPROTO=static
NM_CONTROLLED=no
NAME=br0
DEVICE=br0
ONBOOT=yes
IPADDR=192.168.59.142
NETMASK=255.255.255.0
GATEWAY=192.168.59.2
DNS1=114.114.114.114
[root@142 network-scripts]# cat ifcfg-ens33 
TYPE=Ethernet
BOOTPROTO=static
NAME=ens33
DEVICE=ens33
ONBOOT=yes
BRIDGE=br0
NM_CONTROLLED=no

[root@142 network-scripts]# systemctl restart network
[root@142 network-scripts]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    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 group default qlen 1000
    link/ether 00:0c:29:56:9e:d8 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::20c:29ff:fe56:9ed8/64 scope link 
       valid_lft forever preferred_lft forever
3: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:0c:29:56:9e:d8 brd ff:ff:ff:ff:ff:ff
    inet 192.168.59.142/24 brd 192.168.59.255 scope global br0
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe56:9ed8/64 scope link 
       valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:78:c6:02 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN group default qlen 1000
    link/ether 52:54:00:78:c6:02 brd ff:ff:ff:ff:ff:ff

[root@142 network-scripts]# systemctl start libvirtd
[root@142 network-scripts]# systemctl status libvirtd
● libvirtd.service - Virtualization daemon
   Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2021-07-22 12:27:59 EDT; 1 day 15h ago
     Docs: man:libvirtd(8)
           https://libvirt.org
 Main PID: 3186 (libvirtd)
    Tasks: 19 (limit: 32768)
   CGroup: /system.slice/libvirtd.service
           ├─3186 /usr/sbin/libvirtd
           ├─3301 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/...
           └─3302 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/...

Jul 22 12:28:00 localhost.localdomain dnsmasq[3292]: listening on virbr0(#4): 192.168.122.1
Jul 22 12:28:00 localhost.localdomain dnsmasq[3301]: started, version 2.76 cachesize 150
Jul 22 12:28:00 localhost.localdomain dnsmasq[3301]: compile time options: IPv6 GNU-getopt DBus no-i18n IDN DHCP DHC...tify
Jul 22 12:28:00 localhost.localdomain dnsmasq-dhcp[3301]: DHCP, IP range 192.168.122.2 -- 192.168.122.254, lease time 1h
Jul 22 12:28:00 localhost.localdomain dnsmasq-dhcp[3301]: DHCP, sockets bound exclusively to interface virbr0
Jul 22 12:28:00 localhost.localdomain dnsmasq[3301]: reading /etc/resolv.conf
Jul 22 12:28:00 localhost.localdomain dnsmasq[3301]: using nameserver 114.114.114.114#53
Jul 22 12:28:00 localhost.localdomain dnsmasq[3301]: read /etc/hosts - 2 addresses
Jul 22 12:28:00 localhost.localdomain dnsmasq[3301]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 addresses
Jul 22 12:28:00 localhost.localdomain dnsmasq-dhcp[3301]: read /var/lib/libvirt/dnsmasq/default.hostsfile
Hint: Some lines were ellipsized, use -l to show in full.

[root@142 ~]# lsmod |grep kvm
kvm_intel             188740  0 
kvm                   637289  1 kvm_intel
irqbypass              13503  1 kvm
[root@142 ~]# virsh -c qemu:///system list
 Id    Name                           State
----------------------------------------------------

[root@142 ~]# virsh --version
4.5.0
[root@142 ~]# virt-install --version
1.5.0
[root@142 ~]# ln -s /usr/libexec/qemu-kvm /usr/bin/qemu-kvm
[root@142 ~]# which kvm
/usr/bin/which: no kvm in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin)
[root@142 ~]# which qemu-kvm
/usr/bin/qemu-kvm
#查看网桥信息
[root@142 ~]# brctl show
bridge name    bridge id        STP enabled    interfaces
br0        8000.000c29569ed8    no        ens33
virbr0        8000.52540078c602    yes        virbr0-nic

#安装依赖包
[root@143~]# yum -y install git python-pip libvirt-python libxml2-python python-websockify supervisor nginx python-devel


#从github上下载webvirtmgr代码
[root@143 ~]# cd /usr/local/src/
[root@143 src]# git clone git://github.com/retspen/webvirtmgr.git
Cloning into ‘webvirtmgr‘...


#安装webvirtmgr
[root@143 src]# cd webvirtmgr/
[root@143 webvirtmgr]# pip install -r requirements.txt

#检查sqlite3是否安装
[root@143 webvirtmgr]# python
Python 2.7.5 (default, Nov 16 2020, 22:23:17) 
[GCC 4.8.5 20150623 (Red Hat 4.8.5-44)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sqlite3
>>> exit()

#初始化账号
[root@143 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     //问你是否创建超级管理员帐号
Username (leave blank to use ‘root‘):   //指定超级管理员帐号用户名，默认留空为root
Email address: 790650910@qq.com     //设置超级管理员邮箱
Password:       //设置超级管理员密码
Password (again):       //再次输入超级管理员密码
Superuser created successfully.
Installing custom SQL ...
Installing indexes ...
Installed 6 object(s) from 1 fixture(s)

#拷贝网页到指定目录
[root@143 webvirtmgr]# cd ..
[root@143 src]# mkdir -p /var/www
[root@143 src]# cp -r webvirtmgr/ /var/www/
[root@143 src]# ll
total 4
drwxr-xr-x 20 root root 4096 Jul 24 05:29 webvirtmgr
[root@143 src]# chown -R nginx.nginx /var/www/webvirtmgr/
[root@143 src]# ll /var/www/
total 4
drwxr-xr-x 20 nginx nginx 4096 Jul 24 05:34 webvirtmgr

#生成秘钥
[root@143 src]# 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:NdHNeHbGYVEcS++sKTbRjctrFvRtNpurxf6xdHwpl1A root@143
The key‘s randomart image is:
+---[RSA 2048]----+
|          .. + O*|
|           .o B B|
|          o  o E.|
|         . . .o= |
|        S   .oo.=|
|             o+*B|
|            +.=%B|
|           . oO+=|
|             +o++|
+----[SHA256]-----+
[root@143 src]# ssh-copy-id root@192.168.59.142
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host ‘192.168.59.142 (192.168.59.142)‘ can‘t be established.
ECDSA key fingerprint is SHA256:RmUyUj8k7idYXko0DM/lQzl4d7ycRPlbhGbFdd1zgvI.
ECDSA key fingerprint is MD5:88:36:21:bf:3b:88:3e:ae:04:7e:df:47:1b:fd:6c:1d.
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
^[[A
root@192.168.59.142‘s password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh ‘root@192.168.59.142‘"
and check to make sure that only the key(s) you wanted were added.

[root@143 src]# ssh root@192.168.59.142 ‘date‘
Sat Jul 24 05:40:04 EDT 2021

[root@143 nginx]# vim 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@143 nginx]# 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;
    }
}

#设置supervisord
[root@143 nginx]# vim /etc/supervisord.conf 
.....此处省略上面的内容，在文件最后加上以下内容
[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

#启动supervisor并设置开机自启
[root@143 nginx]# systemctl enable --now supervisord
Created symlink from /etc/systemd/system/multi-user.target.wants/supervisord.service to /usr/lib/systemd/system/supervisord.service.
[root@143 nginx]# systemctl status supervisord
● supervisord.service - Process Monitoring and Control Daemon
   Loaded: loaded (/usr/lib/systemd/system/supervisord.service; enabled; vendor preset: disabled)
   Active: active (running) since Sat 2021-07-24 06:51:36 EDT; 1min 47s ago
  Process: 3002 ExecStart=/usr/bin/supervisord -c /etc/supervisord.conf (code=exited, status=0/SUCCESS)
 Main PID: 3005 (supervisord)
    Tasks: 3
   CGroup: /system.slice/supervisord.service
           ├─3005 /usr/bin/python /usr/bin/supervisord -c /etc/supervisord.conf
           └─3006 /usr/bin/python2 /var/www/webvirtmgr/console/webvirtmgr-console

Jul 24 06:51:36 143 systemd[1]: Starting Process Monitoring and Control Daemon...
Jul 24 06:51:36 143 systemd[1]: Started Process Monitoring and Control Daemon.

[root@143 nginx]# ss -antl
State       Recv-Q Send-Q                Local Address:Port                               Peer Address:Port              
LISTEN      0      5                     192.168.122.1:53                                            *:*                  
LISTEN      0      128                               *:22                                            *:*                  
LISTEN      0      100                       127.0.0.1:25                                            *:*                  
LISTEN      0      128                       127.0.0.1:6010                                          *:*                  
LISTEN      0      128                               *:8000                                          *:*                  
LISTEN      0      100                               *:6080                                          *:*                  
LISTEN      0      128                               *:111                                           *:*                  
LISTEN      0      128                               *:80                                            *:*                  
LISTEN      0      128                            [::]:22                                         [::]:*                  
LISTEN      0      100                           [::1]:25                                         [::]:*                  
LISTEN      0      128                           [::1]:6010                                       [::]:*                  
LISTEN      0      128                            [::]:111                                        [::]:*      

[root@143 nginx]# 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:KkK+usTho4uDmsdpTERv68wtC6f9qINPZqtEi05DbW0 nginx@143
The key‘s randomart image is:
+---[RSA 2048]----+
|                 |
|  .              |
| . .             |
|  o +            |
| =.+ E  S        |
|*o= o  .         |
|o#B=o..          |
|@=XO=o.          |
|@@*o++.          |
+----[SHA256]-----+
-bash-4.2$ 
-bash-4.2$ ssh-copy-id root@192.168.59.142
/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/var/lib/nginx/.ssh/id_rsa.pub"
The authenticity of host ‘192.168.59.142 (192.168.59.142)‘ can‘t be established.
ECDSA key fingerprint is SHA256:RmUyUj8k7idYXko0DM/lQzl4d7ycRPlbhGbFdd1zgvI.
ECDSA key fingerprint is MD5:88:36:21:bf:3b:88:3e:ae:04:7e:df:47:1b:fd:6c:1d.
Are you sure you want to continue connecting (yes/no)? yes
/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
root@192.168.59.142‘s password: 
Authentication failed.
-bash-4.2$ ssh-copy-id root@192.168.59.142
/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
root@192.168.59.142‘s password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh ‘root@192.168.59.142‘"
and check to make sure that only the key(s) you wanted were added.

-bash-4.2$ ssh root@192.168.59.142 ‘date‘
Sat Jul 24 12:08:32 EDT 2021

#远程连接配置
[root@143 nginx]# 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

#重启服务
[root@143 nginx]# systemctl restart nginx 
[root@142 ~]# systemctl restart libvirtd