Linux 下搭建由 Go 语言基于 KVM 虚拟化开发的私有云平台 Nano

文章

林里克斯

608字数

Linux,好玩

Nano 基于 KVM 技术，使用 Go 语言开发，简单易学的虚拟机管理软件，从 Web 管理门户、主机监控、镜像克隆到故障切换，功能完备，开箱即用，数分钟之内即可将您的服务器集群升级为云主机平台。

实验平台：CentOS Linux release 7.6.1810 (Core)

Nano Version：nano 1.2.0

搭建环境要求：

支持虚拟化的X86服务器或者打开嵌套虚拟化 （Intel VT-x/AMD-v） 的虚拟机
2 核 4G 内存 50GB 磁盘和一个网络设备
操作系统安装完成并且网络就绪
Firewalld 和 Selinux 服务正常运行
如有 Raid/LV M请先完成配置，再进行 Nano 安装
默认情况下 "/var/lib/libvirt/images" 路径存储云主机磁盘文件，"/opt/nano/core/data" 存储系统镜像文件，请为其保留足够空间

1.官网

https://nanos.cloud/

2.Wiki

https://nanocloud.readthedocs.io/projects/guide/zh_CN/latest/

3.下载目前最新版本安装包

$ wget https://nanos.cloud/files/nano_installer_1.3.0.tar.gz

3.解压

$ tar xf nano_installer_1.3.0.tar.gz 
$ cd nano_installer

4.安装

# ./installer 
Welcome to nano installer v1.2.0
0 : Core
1 : FrontEnd
2 : Cell
3 : All
4 : Update
5 : Forcibly Update
6 : Exit
Input index to select module to install, multi-modules split by ',' (like 2,3):
#0 只安装 Core 核心模块
#1 只安装 FrontEnd 前段模块
#2 只安装 Cell 模块
#3 安全所有模块
#4 更新
#5 强制更新
#6 退出当前脚本

4.1 选择安全全部模块

# ./installer 
Welcome to nano installer v1.2.0
0 : Core
1 : FrontEnd
2 : Cell
3 : All
4 : Update
5 : Forcibly Update
6 : Exit
Input index to select module to install, multi-modules split by ',' (like 2,3):         #输入 3 全部模块安装，0 只安装 Core，1 只安装 FrontEnd，2 只安装 Cell，
3
default route ready
firewalld service ready
Service Owner Name = 'root' (press enter to accept or input new value): jarbo           #输入启动用户
set user jarbo (uid: 1000), group jarbo (gid: 1000)
Group Domain Name = 'nano' (press enter to accept or input new value):               #默认即可
Group MultiCast Address = '224.0.0.226' (press enter to accept or input new value):     #通讯域标识，组播，使用默认
Group MultiCast Port = 5599 (press enter to accept or input new value):                 #通讯域标识端口，使用默认
cert 'cert/nano_ca.crt.pem', key 'cert/nano_ca.key.pem' already generated
cert install path '/opt/nano/cert' created
'cert/nano_ca.crt.pem' copied to '/opt/nano/cert/nano_ca.crt.pem'
'cert/nano_ca.key.pem' copied to '/opt/nano/cert/nano_ca.key.pem'
'/opt/nano/cert/nano_ca.crt.pem' copied to '/etc/pki/ca-trust/source/anchors/nano_ca.crt.pem'
'/etc/pki/ca-trust/source/anchors/nano_ca.crt.pem' updated
all access modified
3 modules will install...
installing cell dependency packages...
install pacakge fail: exit status 216, warning: rpms/cell/qemu-common-2.0.0-1.el7.6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID 352c64e5: NOKEY
error: Failed dependencies:
    policycoreutils = 2.5-33.el7 is needed by policycoreutils-python-2.5-33.el7.x86_64      #这里这个依赖报错可以忽略

try installing from online reciprocity...
dependency packages installed
try link interface 'ens33' to bridge 'br0', input 'yes' to confirm:yes          #输入 yes，确认构建默认的桥接网络 br0； 如果已经有其他程序设置的br0，建议先手工删除，再安装Cell，否则可能会导致云主机网络连接不正常 。如果是以往Nano安装生成的br0则无影响，可以跳过
network manager stopped
network manager disabled
21 params loaded from '/etc/sysconfig/network-scripts/ifcfg-ens33'
interface scripts /etc/sysconfig/network-scripts/ifcfg-ens33 updated
bridge script /etc/sysconfig/network-scripts/ifcfg-ens33 generated
new bridge br0 created
link ens33 added to bridge br0
bridge br0 up
link ens33 up
···

5.启动服务

$ cd /opt/nano/core
$ ./core start
Core Module 1.3.1
service Core_000c29482880 listen at '10.10.12.4:5600'
group '224.0.0.226:5599', domain 'nano'
API address ':5850', image service '10.10.12.4:5801'
Image TLS Cert '/opt/nano/core/cert/nano_image.crt.pem', Key '/opt/nano/core/cert/nano_image.key.pem'
core started
#请注意，必须首先启动 Core 模块

$ cd ../cell
$ ./cell start
bridge br0 is ready
default route ready
No configures available, following instructions to generate a new one.
Group Domain Name = 'nano' (press enter to accept or input new value): 
Group MultiCast Address = '224.0.0.226' (press enter to accept or input new value): 
Group MultiCast Port = 5599 (press enter to accept or input new value): 
default configure '/opt/nano/cell/config/domain.cfg' generated
start cell fail: virError(Code=38, Domain=7, Message='Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such file or directory')
#此报错是因为 libvirtd 服务未启动

# systemctl start libvirtd

$ ./cell start
bridge br0 is ready
default route ready

Cell Modeul 1.3.1
service Cell_000c29482880 listen at '10.10.12.4:5602'
group '224.0.0.226:5599', domain 'nano'
cell started

$ cd ../frontend/
$ ./frontend start
data path /opt/nano/frontend/data created
Front-End Module 1.3.1
Core API: http://10.10.12.4:5850/api/v1
Nano Web Portal: http://10.10.12.4:5870

frontend started

6.模块启动控制