//关闭防火墙与SELINUX
[root@kvm ~]# systemctl stop firewalld
[root@kvm ~]# 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@kvm ~]# setenforce 0
[root@kvm ~]# sed -ri 's/^(SELINUX=).*/\1disabled/g' /etc/selinux/config
[root@localhost ~]# reboot

//配置网络源
[root@kvm yum.repos.d]# curl -o /etc/yum.repos.d/CentOS7-Base-163.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo
[root@kvm ~]# sed -i 's/\$releasever/7/g' /etc/yum.repos.d/CentOS7-Base-163.repo
[root@kvm ~]# sed -i 's/^enabled=.*/enabled=1/g' /etc/yum.repos.d/CentOS7-Base-163.repo
[root@kvm ~]# yum -y install epel-release vim wget net-tools unzip zip gcc gcc-c++
安装过程略.....

//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@kvm ~]# egrep -o 'vmx|svm' /proc/cpuinfo
vmx
vmx
vmx
vmx

//kvm安装
[root@kvm ~]# 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
安装过程略......


//因为虚拟机中网络，我们一般都是和公司的其他服务器是同一个网段，所以我们需要把 \
KVM服务器的网卡配置成桥接模式。这样的话KVM的虚拟机就可以通过该桥接网卡和公司内部 \
其他服务器处于同一网段
//此处我的网卡是ens33，所以用br0来桥接ens33网卡
[root@kvm ~]# cd /etc/sysconfig/network-scripts/
[root@kvm network-scripts]# ls
ifcfg-ens33  ifdown-isdn      ifup          ifup-plip      ifup-tunnel
ifcfg-lo     ifdown-post      ifup-aliases  ifup-plusb     
.....此处内容省略
[root@kvm network-scripts]# cp ifcfg-ens33 ifcfg-br0
[root@kvm network-scripts]# cat ifcfg-br0
TYPE=Bridge
DEVICE=br0
NM_CONTROLLED=no
BOOTPROTO=static
NAME=br0
ONBOOT=yes
IPADDR=192.168.160.109
NETMASK=255.255.255.0
GATEWAY=192.168.160.1
DNS1=114.114.114.114
DNS2=8.8.8.8
[root@kvm network-scripts]# cat ifcfg-ens33
TYPE=Ethernet
BOOTPROTO=static
NAME=ens33
DEVICE=ens33
ONBOOT=yes
BRIDGE=br0
NM_CONTROLLED=no

//重启网络
[root@kvm ~]# systemctl restart network
[root@kvm ~]# ip a
1: lo: 
    
      
       
      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: 
     
       
        
       mtu 1500 qdisc pfifo_fast master br0 state UP qlen 1000
      
        
 link/ether 00:0c:29:4c:50:b4 brd ff:ff:ff:ff:ff:ff
      
        
3: virbr0: 
      
        
         
        mtu 1500 qdisc noqueue state DOWN qlen 1000
       
         
 link/ether 52:54:00:60:a8:ea 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
       
         
4: virbr0-nic: 
       
         
          
         mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
        
          
 link/ether 52:54:00:60:a8:ea brd ff:ff:ff:ff:ff:ff
        
          
5: br0: 
        
          
           
          mtu 1500 qdisc noqueue state UP qlen 1000
         
           
 link/ether 72:63:57:0a:ca:76 brd ff:ff:ff:ff:ff:ff
         
           
 inet 192.168.160.109/24 brd 192.168.160.255 scope global br0
         
           
 valid_lft forever preferred_lft forever
         
           
 inet6 fe80::7063:57ff:fe0a:ca76/64 scope link
         
           
 valid_lft forever preferred_lft forever
         
           
 
         
           

         
           
//启动服务
         
           
[root@kvm ~]# systemctl start libvirtd
         
           
[root@kvm ~]# systemctl enable libvirtd
         
           

         
           
//验证安装结果
         
           
[root@kvm ~]# 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@kvm ~]# virsh -c qemu:///system list
         
           
 Id Name State
         
           
----------------------------------------------------
         
           
[root@kvm ~]# virsh --version
         
           
3.9.0
         
           
[root@kvm ~]# virt-install --version
         
           
1.4.3
         
           
[root@kvm ~]# ln -s /usr/libexec/qemu-kvm /usr/bin/qemu-kvm
         
           
[root@kvm ~]# ll /usr/bin/qemu-kvm
         
           
lrwxrwxrwx 1 root root 21 Oct 18 10:57 /usr/bin/qemu-kvm -> /usr/libexec/qemu-kvm
         
           
[root@kvm ~]# lsmod |grep kvm
         
           
kvm_intel 170086 0
         
           
kvm 566340 1 kvm_intel
         
           
irqbypass 13503 1 kvm
         
           

         
           
//查看网桥信息
         
           
[root@kvm ~]# brctl show
         
           
bridge name bridge id STP enabled interfaces
         
           
br0 8000.000c294c50b4 no ens33
         
           
virbr0 8000.52540060a8ea yes virbr0-nic
         
           

        
          
       
         
      
        
     
       
    
      

[root@kvm ~]# virt-manager
//需要下载Xmanage软件而且版本需要和Xshell一个版本

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

//升级pip
[root@kvm ~]# pip install --upgrade pip


//从github上下载webvirtmgr代码
[root@kvm ~]# cd /usr/local/src/
[root@kvm src]# git clone git://github.com/retspen/webvirtmgr.git
Cloning into 'webvirtmgr'...
remote: Enumerating objects: 5730, done.
remote: Total 5730 (delta 0), reused 0 (delta 0), pack-reused 5730
Receiving objects: 100% (5730/5730), 3.01 MiB | 39.00 KiB/s, done.
Resolving deltas: 100% (3688/3688), done.

//安装webvirtmgr
[root@kvm src]# cd webvirtmgr/
[root@kvm webvirtmgr]# pip install -r requirements.txt
Collecting django==1.5.5 (from -r requirements.txt (line 1))
  Downloading https://files.pythonhosted.org/packages/38/49/93511c5d3367b6b21fc2995a0e53399721afc15e4cd6eb57be879ae13ad4/Django-1.5.5.tar.gz (8.1MB)
    57% |██████████████████▌             | 4.7MB 38kB/s eta 0:01:28 
.....此处省略安装步骤

//检查sqlite3是否安装
[root@kvm webvirtmgr]# python
Python 2.7.5 (default, May  3 2017, 07:55:04)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-14)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sqlite3
>>> exit()

//初始化帐号信息
[root@kvm 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: sean1002@126.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web网页至指定目录
[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/

//生成密钥
[root@kvm ~]# 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:CQoZtso2M5Uo39lKvjZboncqakQ69iJt5wnjiJKZNhw root@kvm
The key's randomart image is:
+---[RSA 2048]----+
|  o              |
| ..+.            |
|..+o  .          |
|o+.o + . .       |
|+*. = . S        |
|+E+o .           |
|+*= + .          |
|BO+===.          |
|Oo=**=           |
+----[SHA256]-----+
//由于这里webvirtmgr和kvm服务部署在同一台机器，所以这里本地信任。如果kvm部署在其他机器，那么这个是它的ip
[root@kvm ~]# ssh-copy-id 192.168.160.109
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host '192.168.160.109 (192.168.160.109)' can't be established.
ECDSA key fingerprint is SHA256:UszC1ZeHM7xw/uefVkJoXW6XgRw+Jl51tAXLjFERclE.
ECDSA key fingerprint is MD5:b3:f1:02:b8:01:8e:53:a7:87:09:c0:75:24:4c:ad:88.
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@192.168.160.109's password:

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh '192.168.160.109'"
and check to make sure that only the key(s) you wanted were added.
//配置端口转发
[root@kvm ~]# ssh 192.168.160.109 -L localhost:8000:localhost:8000 -L localhost:6080:localhost:60
Last login: Thu Oct 18 08:26:40 2018 from 192.168.160.36
[root@kvm ~]# ss -antl
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      127.0.0.1:6080                         *:*
LISTEN      0      128      127.0.0.1:8000                         *:*
LISTEN      0      128             :::111                         :::*
LISTEN      0      128             :::22                          :::*
LISTEN      0      100            ::1:25                          :::*
LISTEN      0      128            ::1:6080                        :::*
LISTEN      0      128            ::1:8000                        :::* 




//配置nginx
[root@kvm ~]# 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@kvm ~]# 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@kvm ~]# vim /var/www/webvirtmgr/conf/gunicorn.conf.py
.....此处省略N行
bind = '0.0.0.0:8000'     //确保此处绑定的是本机的8000端口，这个在nginx配置中定义了，被代理的端口
backlog = 2048
.....此处省略N行

//重启nginx
[root@kvm ~]# systemctl restart nginx
[root@kvm ~]# ss -antl
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      127.0.0.1:6080                         *:*
LISTEN      0      128      127.0.0.1:8000                         *:*
LISTEN      0      128             :::111                         :::*
LISTEN      0      128             :::22                          :::*
LISTEN      0      100            ::1:25                          :::*
LISTEN      0      128            ::1:6080                        :::*
LISTEN      0      128            ::1:8000                        :::*



//设置supervisor
[root@kvm ~]# 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@kvm ~]# systemctl start supervisord
[root@kvm ~]# systemctl enable supervisord
Created symlink from /etc/systemd/system/multi-user.target.wants/supervisord.service to /usr/lib/systemd/system/supervisord.service.
[root@kvm ~]# 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 Thu 2018-10-18 11:59:33 CST; 25s ago
 Main PID: 17918 (supervisord)
   CGroup: /system.slice/supervisord.service
           └─17918 /usr/bin/python /usr/bin/supervisord -c /etc/supervisord.conf

Oct 18 11:59:33 kvm systemd[1]: Starting Process Monitoring and Control Daemon...
Oct 18 11:59:33 kvm systemd[1]: Started Process Monitoring and Control Daemon.

[root@kvm webvirtmgr]# ss -antl
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                          :::*

//配置nginx用户
[root@kvm home]# 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:rdbmW/YIXxAJBzPsd9q9eKHPjWtSZ5EQC5li3tkczYI nginx@localhost.localdomain
The key's randomart image is:
+---[RSA 2048]----+
|         .=o=.+  |
|         o.E.=.o |
|        o.o *.+ .|
|         o.o.+.o |
|        S ...+ ..|
|         o  ..o.+|
|        o + o.+oo|
|       . o =.*o+.|
|          o.oo*+.|
+----[SHA256]-----+

-bash-4.2$ touch ~/.ssh/config && echo -e "StrictHostKeyChecking=no\nUserKnownHostsFile=/dev/null" >> ~/.ssh/config
-bash-4.2$ chmod 0600 ~/.ssh/config

-bash-4.2$ ssh-copy-id root@192.168.160.109
/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 '192.168.160.109' (ECDSA) to the list of known hosts.
root@192.168.160.109's password:

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'root@192.168.160.109'"
and check to make sure that only the key(s) you wanted were added.

-bash-4.2$ exit
logout

[root@kvm ~]# 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@kvm ~]# chown -R root.root /etc/polkit-1/localauthority/50-local.d/50-libvirt-remote-access.pkla
[root@kvm ~]# systemctl restart nginx
[root@kvm ~]# systemctl restart libvirtd

[root@kvm ~]# cd /var/lib/libvirt/images/
[root@kvm images]# ls
[root@kvm images]#

Upload SCP
CentOS-7-x86_64-DVD-1804.iso          (4263.00 MB, 8:45 min = 8.12 MB/sec)


[root@kvm images]# ls
CentOS-7-x86_64-DVD-1804.iso

[root@localhost ~]# ll /etc/rc.local
lrwxrwxrwx. 1 root root 13 Aug  6  2018 /etc/rc.local -> rc.d/rc.local
[root@localhost ~]# ll /etc/rc.d/rc.local
-rw-r--r-- 1 root root 513 Mar 11 22:35 /etc/rc.d/rc.local
[root@localhost ~]# chmod +x /etc/rc.d/rc.local
[root@localhost ~]# ll /etc/rc.d/rc.local
-rwxr-xr-x 1 root root 513 Mar 11 22:35 /etc/rc.d/rc.local

[root@localhost ~]# vim /etc/rc.d/rc.local
......此处省略N行
# that this script will be executed during boot.

touch /var/lock/subsys/local
nohup novnc_server 172.16.12.128:5920 &

[root@localhost ~]# . /etc/rc.d/rc.local

[root@localhost ~]# vim /etc/nginx/nginx.conf
....此处省略N行
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
worker_rlimit_nofile 655350;    //添加此行配置

# Load dynamic modules. See /usr/share/nginx/README.dynamic.
....此处省略N行

[root@localhost ~]# systemctl restart nginx

[root@localhost ~]# vim /etc/security/limits.conf
....此处省略N行
# End of file
* soft nofile 655350
* hard nofile 655350