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README
Apache-2.0

项目介绍

KVM Cloud 是一款基于Java实现的轻量级私有云平台,旨在帮助中小企业快速实现计算、存储、网络等资源的管理,让企业拥有自己的云平台,包括但不限于如下功能:
1、基于KVM的VM基础功能(创建、启动、停止、重装、webVNC等功能)
2、支持NFS、glusterfs磁盘存储池
3、支持磁盘动态添加取消
4、多主机管理
5、支持模版维护,用于快速创建VM
6、虚拟机IP自动管理
7、多网卡支持
8、支持 raw、qcow、qcow2、vdi、vmdk、vpc磁盘格式
9、磁盘快照支持
10、通过OVS支持Vlan网络划分
11、支持cloud-init配置系统密码
12、支持内部dns解析
13、支持nat转发
14、支持密钥管理登录
15、支持主机名定制

关于升级

目前不支持V1、V2升级到最新版本
V3.0升级时请重新上传系统模版文件Cloud-System-v3.1.qcow2(md5:2696ca0d762279bc386b03c8cea82cd7),并在模版页面点击重新下载
新版本不在支持采用backingfile方式,升级前请确保所有磁盘文件没有父磁盘的依赖,如果有请通过clone方式将磁盘重新克隆,取消依赖关系,否则删除模版将导致磁盘不可用

操作系统

Linux(intel、amd)

SELinux配置

setenforce 0
vi /etc/selinux/config
SELINUX=permissive

sysctl配置

vim /etc/sysctl.conf 
net.ipv4.ip_forward=1               # 设置转发并保存
sysctl -p

防火墙配置

systemctl stop firewalld
systemctl disable firewalld
systemctl stop iptables
systemctl disable iptables
systemctl stop NetworkManager
systemctl disable NetworkManager

NFS配置

1、安装NFS软件包

yum -y install nfs-utils rpcbind

2、设置开机自启以及启动服务

systemctl enable rpcbind
systemctl enable nfs-server
systemctl start rpcbind
systemctl start nfs-server

3、新建存储文件夹

mkdir -p /data/nfs

4、编辑配置

vi /etc/exports
/data/nfs *(rw,sync,no_root_squash)

5、重新加载exportfs文件

  exportfs -a

6、重新服务

systemctl restart rpcbind
systemctl restart nfs-server

7、测试挂载是否正常

mount -t nfs 127.0.0.1:/data/nfs /mnt
df -h        ###查看有了代表成功
umount /mnt

KVM

1、验证主机是否支持虚拟化

 lsmod | grep kvm #查看结果确认是否支持虚拟化
 如果是vmware开启的虚拟机,请启用虚拟化技术

2、主机安装KVM

yum install qemu-kvm libvirt bridge-utils
yum install java-1.8.0-openjdk* -y

3、配置KVM 主机网桥,增加一个网桥

这一步一定注意:使用ip addr查看你的网卡名,在CentOS 7中网卡名可能不是eth0,错误的网卡名会导致后期配置的虚拟机无法正常被访问到! 确认网卡名无误后配置网桥:

1)、创建桥接网卡文件/etc/sysconfig/network-scripts/ifcfg-br0

DEVICE=br0
TYPE=Bridge
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.2.130
NATMASK=255.255.255.0
PREFIX=24
GATEWAY=192.168.2.1
DNS1=8.8.4.4
DNS2=8.8.8.8 

2)、修改默认网卡配置

下面这个编辑 注意改成 ifcfg-实际网卡名,例如eth0,对应文件为:/etc/sysconfig/network-scripts/ifcfg-eth0

BOOTPROTO=none
NAME=eth0
DEVICE=eth0
ONBOOT=yes
NM_CONTRLLED=no
BRIDGE=br0

3)、如需ovs配置,请参考OVS 网卡设置参考.txt

4、VNC配置

修改 /etc/libvirt/qemu.conf

vnc_listen="0.0.0.0"
user = "root"
group = "root"

5、Libvirtd配置

1)、修改/etc/sysconfig/libvirtd 配置

vi /etc/libvirt/libvirtd.conf
listen_tls = 0
listen_tcp = 1
unix_sock_group = "root"
unix_sock_rw_perms = "0777"
auth_unix_ro = "none"
auth_unix_rw = "none"
tcp_port = "16509"
listen_addr = "0.0.0.0"
auth_tcp = "none"
vi /etc/sysconfig/libvirtd
    LIBVIRTD_ARGS="--listen"
systemctl restart libvirtd 

项目编译

mvn clean package -Dfile.encoding=UTF-8 -DskipTests=true

完成配置

1、导入mysql表及相关数据

脚本位于scripts下

2、安装Redis

3、修改配置文件

4、分别启动管理端及Agent端,浏览页面:http://localhost:8080/

管理端: java -jar cloud-management-1.0-SNAPSHOT.jar --spring.config.location=server.yaml
Agent: java -jar cloud-agent-1.0-SNAPSHOT.jar --spring.config.location=client.properties
 --spring.config.location 是可选项,用于指定配置文件,如果不需要修改,可以去掉,配置文件为各自模块下的src/main/resources/application.properties文件

5、平台登陆账号默认用户名/密码:admin/123456

6、创建基础网络

采用桥接网络配置,IP地址段与主机主机段需保持一致,可通过起始IP与结束IP和主机网络进行分离,防止IP冲突,Vlan只支持OVS方式

7、创建主机

8、创建存储池(只支持nfs)

9、下载基础模版(系统模版选择cloud/v3/Cloud-System-V3.1.qcow2)

百度网盘链接: https://pan.baidu.com/s/1bOAeuvFj8hG4skDaoZnYtQ?pwd=1bpn 提取码: 1bpn

10、安装nginx,配置基础下载地址,并在页面完成模版配置

11、等待系统模版下载完成,并初始化系统VM成功

12、windows附加磁盘时请安装virtio-win.iso驱动

13、创建VM

相关问题

1、关于找不到配置文件问题导致数据库连接问题

server.yaml 和 client.properties 内容分别为management和agent项目下的application.yaml和application.properties的文件,运行时自行修改名称及相关配置

2、关于备份与恢复

对数据库和存储池进行完整备份;
数据无价,建议对虚拟机中的数据进行备份

3、关于网络隔离

    1)、目前只支持OVS桥接状态下的Vlan模式,如需使用,请自行安装OVS。
    2)、负载均衡器可通过挂载基础网络网卡的方式自行实现。

4、个别windows系统无法找到引导的问题

    1)、首先确认创建的ISO系统类型是否正确
    2)、如果确认系统类型没有问题,可以通过老毛桃做一个PE的ISO镜像,在创建系统的时候可以通过PE镜像创建,然后进入PE系统,在页面上卸载光盘,重新挂载你要安装的操作系统,然后通过PE安装就可以正常安装了

5、windows系统磁盘不识别问题

    1)、windows没有virto的驱动,请安装virtio-win.iso驱动
    2)、如果是系统盘则需要在磁盘选择页面临时挂载virtio-win.iso驱动后安装或选择ide总线方式

6、服务器掉电重启后处理

   1、服务器掉电重启后,请在页面手动关闭所有自己创建的虚拟机,然后重新启动,系统虚拟机有自动检测重启功能,无需处理
   2、掉电可能引起虚拟磁盘损坏,如无法启动,可通过qemu-img check检查并进行相应修复

7、虚拟机虚拟化嵌套

1、验证KVM 宿主机是否启用了嵌套虚拟化:
    基于 Intel 的处理器运行以下命令:cat /sys/module/kvm_intel/parameters/nested
    基于 AMD 的处理器运行以下命令: cat /sys/module/kvm_amd/parameters/nested
    上述命令输出N /0表示嵌套虚拟化是禁用的。如果我们得到的输出是Y/1 则表示在您的宿主机已启用嵌套虚拟化
2、如果需要启用嵌套虚拟化,使用以下内容创建一个文件名为/etc/modprobe.d/kvm-nested.conf 的文件:
    options kvm-intel nested=1
    options kvm-intel enable_shadow_vmcs=1
    options kvm-intel enable_apicv=1
    options kvm-intel ept=1
3、reboot 重启机器
4、现在验证嵌套虚拟化功能是否启用
    cat /sys/module/kvm_intel/parameters/nested

8、cloud-init相关配置

1、cloud-init数据源采用NoCloud,请修改cloud相关配置如下:
    datasource:
      NoCloud:
        seedfrom: http://169.254.169.254/
    datasource_list: [  NoCloud ]

2、系统模板在安装cloud-init后手动设置相关配置
    1)、设置允许密码登录:设置ssh_pwauth: 1
    2)、可设置允许root登录:disable_root: 1 
    3)、ubuntu修改/etc/cloud/cloud.cfg.d/50-curtin-networking.cfg 保证默认网卡名和分配网卡名一致
    4)、目前只测试了Centos与Ubuntu,Windows请自行实现相关初始化行为
    5)、密码只对应默认用户,具体请查看system_info.default_user相关配置
    6)、其他配置请参照cloud-init相关配置进行安装
    7)、对系统模板请安装qemu-command-agent,并进行相关配置
    
    
3、目前只提供Centos及Ubuntu22.04的系统模版,其他系统模版,请自行实现
    1)、Centos默认用户名为centos,密码为创建系统时输入的密码
    2)、Ubuntu默认用户名为ubuntu,密码为创建系统输入的密码
    3)、系统模版不支持root用户名密码登录,如需root登录,请自行修改
    
4、关于自制模版中Ubuntu 22.04无法使用密钥登录问题,执行如下命令
    1)、echo 'PubkeyAcceptedAlgorithms=+ssh-rsa' >> /etc/ssh/sshd_config
    2)、systemctl restart sshd

9、页面删除主机后,如需要重新加入主机,请删除该主机Agent目录下config.json,然后重启Agent

10、关于提示签名错误问题,请确保管理端跟agent端时间同步

11、修改默认machine设置

由于各操作系统支持不同,可以在agent的配置文件中增加如下配置修改(示例为ubuntu 22.04中的配置):
app.machine.name = q35
app.machine.arch = x86_64
app.cd.bus = sata (根据machine修改光驱的设置)
具体支持的配置需要根据操作系统决定,具体查询命令如下:
Centos: /usr/libexec/qemu-kvm -machine help
Ubuntu: qemu-system-i386 -machine help

12、UEFI 配置

由于各操作系统支持不同,可以在agent的配置增加uefi路径配置(示例为ubuntu 22.04中的配置):
app.uefi.type = pflash
app.uefi.path= /usr/share/OVMF/OVMF_CODE.fd

13、关于网络不通问题

尽量使用纯净系统安装,如果网络不通,请检查防火墙、iptables、关闭NetworkManager服务等
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KVM Cloud 是一款基于Java实现的轻量级私有云平台,旨在帮助中小企业快速实现计算、存储、网络等资源的管理,让企业拥有自己的云平台。 expand collapse
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