基于Centos7.6 安装KVM+WebVirtMgr虚拟化管理平台

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

#安装epel源和一些常用工具
[root@localhost ~]# yum -y install epel-release vim wget net-tools unzip zip gcc gcc-c++

[root@localhost ~]# egrep -o 'vmx|svm' /proc/cpuinfo
vmx

#kvm安装
[root@localhost ~]# 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@localhost network-scripts]# cat ifcfg-br0
TYPE=Bridge        #增加这段
BOOTPROTO=none
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=br0            #名字改成br0
DEVICE=br0            #名字改成br0
ONBOOT=yes            #设置网卡启用
IPADDR=192.168.30.4    #设置IP，这是物理机IP
NETMASK=255.255.255.0
GATEWAY=192.168.30.1
DNS1=8.8.8.8

[root@localhost network-scripts]# cat ifcfg-em1
BRIDGE=br0        #增加这段br0是桥接网卡名字
BOOTPROTO=none
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=em1
UUID=db488d6c-f2bd-4162-91b0-b093da627043
DEVICE=em1
ONBOOT=yes            #设置网卡启用

[root@localhost network-scripts]# systemctl restart network

[root@localhost network-scripts]# systemctl start libvirtd
[root@localhost network-scripts]# systemctl enable libvirtd

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

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

#拉取代码
[root@localhost ~]# cd /usr/local/src/
[root@localhost src]# git clone git://github.com/retspen/webvirtmgr.git

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

#检查sqlite3是否安装
[root@localhost 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()


#初始化账号信息
[root@localhost webvirtmgr]# ./manage.py syncdb

#cp网页到指定目录
[root@localhost webvirtmgr]#  mkdir /var/www
[root@localhost webvirtmgr]# cp -r /usr/local/src/webvirtmgr /var/www/
[root@localhost webvirtmgr]# chown -R nginx.nginx /var/www/webvirtmgr/

#生成密钥
[root@localhost ~]# ssh-keygen

#这里webvirtmgr和kvm服务部署在同一台机器，所以这里本地信任
[root@localhost ~]# ssh-copy-id  192.168.248.135

#配置端口转发
[root@localhost ~]# ssh 192.168.248.135 -L localhost:8000:localhost:8000 -L localhost:6080:localhost:60
Last login: Sat May 22 23:51:39 2021 from 192.168.248.1

#配置nginx
[root@localhost ~]# cp /etc/nginx/nginx.conf{,.bak}
[root@localhost ~]# vi /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@localhost ~]# 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@localhost ~]# sed -n  '23p'  /var/www/webvirtmgr/conf/gunicorn.conf.py
bind = '127.0.0.1:8000'

[root@localhost ~]# systemctl  restart nginx

#文件尾部追加
[root@localhost ~]# 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

#启动supervisor
[root@localhost ~]# systemctl enable --now supervisord

[root@localhost ~]# su - nginx -s /bin/bash
-bash-4.2$ ssh-keygen

-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@192.168.248.135

-bash-4.2$ exit

[root@localhost ~]#  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@localhost ~]# systemctl restart nginx
[root@localhost ~]# systemctl restart libvirtd