#冲刺创作新星#OLVM使用教程 原创

OLVM简介

简介

Oracle Linux Virtualization Manager是一个服务器虚拟化管理平台，可以轻松地部署以配置，监视和管理具有企业级性能和Oracle支持的基于Oracle Linux内核的虚拟机（KVM）环境。

Oracle Linux 7安装

以下将在Cloudlab上进行安装

新增虚拟机

输入名称等信息，并选择映像文件

配置CPU：2 core，Mem：8GB，Storage：50GB

系统安装

开机后，选择“Install Oracle Linux 7.9”，Enter进行安装

语言选择，默认：US English，单击Next

时区选择“Asis/Hong Kong”，最小化安装

配置网络信息

设置Host name

设置root密码

安装完成，单击Reboot

OLVM安装

配置yum仓库

Enable the ol7_latest yum repository

yum-config-manager --enable ol7_latest

Install the Oracle Linux Virtualization Manager Release 4.3.6 package

yum install oracle-ovirt-release-el7

Verify that the required repositories are enabled

yum clean all
yum repolist all | grep enabled

The following repositories must be enabled:

• ol7_latest

• ol7_optional_latest

• ol7_kvm-utils

• ol7_gluster6

• ol7_UEKR5

• ovirt-4.3

• ovirt-4.3-extra

disable the 4.2 repositories using yum

yum-config-manager --disable ovirt-4.2
yum-config-manager --disable ovirt-4.2-extra

Install the Manager

yum install ovirt-engine

Configuring the Engine

当前使用默认配置

engine-setup --accept-defaults

SSO Setup

配置FQDNS

# cat /etc/ovirt-engine/engine.conf.d/99-custom-sso-setup.conf
SSO_ALTERNATE_ENGINE_FQDNS="ol7-olvm ol7-olvm.sample.com"
# systemctl restart ovirt-engine

Logging in

因主机未配置正确FQDN，默认配置使用主机hostname

​​https://ol7-olvm/ovirt-engine​​

Username:admin

Password:P@ss0lvm

本机windows添加hosts记录：“172.16.94.29 ol7-olvm”

Reset User Password

SSH to the Oracle Linux Virtualization Manager

# ovirt-aaa-jdbc-tool user password-reset admin

KVM Host安装

参照​​Oracle Linux 7安装​​，进行Oracle Linux 7 minimal安装

磁盘分区如下：

配置yum仓库

Enable the ol7_latest yum repository

yum-config-manager --enable ol7_latest

Install the Oracle Linux Virtualization Manager Release 4.3.6 package

yum install oracle-ovirt-release-el7

Verify that the required repositories are enabled

yum clean all
yum repolist all | grep enabled

The following repositories must be enabled:

• ol7_latest

• ol7_optional_latest

• ol7_kvm-utils

• ol7_gluster6

• ol7_UEKR5

• ovirt-4.3

• ovirt-4.3-extra

disable the 4.2 repositories using yum

yum-config-manager --disable ovirt-4.2
yum-config-manager --disable ovirt-4.2-extra

(Optional) Open the Cockpit port

firewall-cmd --zone=public --add-port=9090/tcp

OLVM配置

添加KVM Host

输入相关信息进行添加

添加完成，InstallFailed，查看日志提示主机不支持虚拟化

解决方案：

开启ol7-kvm01 CPU虚拟化

安装完成，状态为“Up”

Power Management配置

iDRAC配置

启用LAN上的IPMI

新建Read only角色用户

Username:fence_ovirt

Password:OviP@ss

LAN权限级别为：管理员

Fence agent配置

Kdump integration配置

KVM Host修改/etc/kdump.conf配置，增加以下两行

fence_kdump_nodes ol7-olvm.sample.com
fence_kdump_args -p 7410 -i 5

Restart kdump service

# systemctl restart kdump

Storage Domains

创建iSCSI卷

在openfiler服务器中创建，详看openfiler文档

添加Storage Domains

输入相关信息，发现Target – login – Add

添加成功，状态为Active

上传ISO文件到Data Domain

在engine主机上，检查ovirt-image-proxy服务状态

systemctl status ovirt-imageio-proxy.service

在engine主机上，将Engine证书作为证书的可信证书

scp /etc/pki/ovirt-engine/ca.pem /etc/pki/ca-trust/source/anchors/ovirt.ca.pem

在KVM主机上，检查ovirt-image-proxy服务状态

systemctl status ovirt-imageio-daemon

登录Administration Portal

选择ISO镜像文件，并填写相关信息，点击“Test Connection”

点击“Ok”，进行上传

Logical Network

创建Virtual Machine Network

点击“Network”-“Networks”-“New”

输入网络名称

分配VM Network给KVM Host

点击“Compute”-“Hosts”，点击KVM Host “ol7-kvm01”

打开“Network Interfaces”，点击“Setup Host Networks”

目前并无多余Interfaces可供分配，需在Cloudlab添加网卡给kvm host

Cloudlab为kvm host添加网卡

将VM Net拉到对应新增的网卡的Logical Networks中

配置完成

创建Virtual Machine

管控独立KVM Host

当遇到使用local disk的kvm host需要加入到olvm时可采用新建存储为local类型的Data Center

Preparing Local Storage for KVM Hosts

mkdir -p /data/images
chown 36:36 /data /data/images
chmod 0755 /data /data/images

Create New Data Center

“Compute”-“Data Centers”-“New”

Configure Cluster

Configure Host

Create New Domain

“Compute”-“Storage”-“Domains” -“New Domain”

Check the status

Upgrade KVM Host

“Compute”-“Hosts”-“Installation”-“Upgrade”

Reboot host after upgrade

Upgrade Completed

Install Guest Agent

​​https://support.oracle.com/knowledge/Oracle%20Linux%20and%20Virtualization/2560639_1.html​​

Guest VMs显示需安装guest agent并启动

For Oracle Linux 7 guest VMs

# yum install qemu-guest-agent -y
# systemctl enable --now qemu-guest-agent

For Microsoft Windows VMs

Upload the ovirt-tools-setup.iso to a storage domain in the olvmadm

# yum install ovirt-guest-tools-iso -y
# ovirt-iso-uploader upload -i ISO /usr/share/ovirt-guest-tools-iso/ovirt-tools-setup.iso

“Compute”-“Virtual Machines”-“Change CD”

Select ovirt-tools-setup.iso

Install ovirt-guest-tools-setup.exe

Install Oracle Windows VirtIO Drivers

​​https://support.oracle.com/epmos/faces/DocumentDisplay?_afrLoop=424958474888873&id=2578136.1&_adf.ctrl-state=q8z0h1vb8_53​​

将winvirtio.iso上传到Storage Domains

参照guest agent安装进行。

Backup OLVM Engine

Create a script called /root/tools/scripts/backup_housekeep.sh with the following below contents

#!/bin/bash
engine-backup --scope=all --mode=backup
find /var/lib/ovirt-engine-backup -mtime +30 -user root -exec rm {} \;
find /var/log/ovirt-engine-backup -mtime +30 -user root -exec rm {} \;

Make /root/tools/scripts/backup_housekeep.sh executable

# chmod +x /root/tools/scripts/backup_housekeep.sh

Edit crontab file

# crontab -e

Add the below contents

0 0 * * * /root/tools/scripts/backup_housekeep.sh >/dev/null 2>&1

The daily backups will be automatically taken at 12:00 am every day at /var/lib/ovirt-engine-backup/

Regenerate All Certificates in OLVM

​​https://support.oracle.com/epmos/faces/SearchDocDisplay?_afrLoop=248653981623467&_afrWindowMode=0&_adf.ctrl-state=1bbr43cz16_4​​

put the environment into global maintenance mode.

# hosted-engine --set-maintenance --mode=global

Manager:

# engine-backup --mode=backup --scope=all --file="/var/lib/ovirt-engine/backups/engine-backup-$(date +%Y%m%d%H%M%S).tar.bz2" --log=/var/log/ovirt-engine-backups.log
# tar cJpf /root/pki.tar.xz /etc/pki

KVM Host:

# tar cJpf /root/pki.tar.xz /etc/pki

Stop all guest VMs and put KVM hosts into maintenance mode.

Create new CA with following command :

# /usr/share/ovirt-engine/bin/pki-create-ca.sh --subject="/C=US/O=<example.org>/CN=<CN_name>" --keystore-password=mypass

Make sure you have latest Setup packages i.e ovirt-engine-setup ovirt-engine-setup-plugin-websocket-proxy

# yum update ovirt-engine-setup ovirt-engine-setup-plugin-websocket-proxy

Run engine-setup, this will recreate all the remaining certs of the manager.

# engine-setup

Restart services

# systemctl restart httpd ovirt-engine ovirt-engine-dwhd ovirt-websocket-proxy ovirt-imageio-proxy

In OLVM GUI, Enroll certificate for KVM host.

Compute -> Hosts -> Select the host -> Installation -> Enroll Certificate