Install WebVirtCloud KVM Management on CentOS 8

Introduction

WebVirtCloud the (virtualization web interface for admins and users).

So, WebVirtCloud is a virtualization web interface for admins and users.It can delegate Virtual Machine’s to users. A noVNC viewer presents a full graphical console to the guest domain. KVM is currently the only hypervisor supported.

Features

• QEMU/KVM Hypervisor Management
• QEMU/KVM Instance Management – Create, Delete, Update
• Hypervisor & Instance web based stats
• Manage Multiple QEMU/KVM Hypervisor
• Also Manage Hypervisor Datastore pools
• Manage Hypervisor Networks
• Instance Console Access with Browsers
• Libvirt API based web management UI
• User Based Authorization and Authentication
• Also User can add SSH public key to root in Instance (Tested only Ubuntu)
• In addition to, User can change root password in Instance (Tested only Ubuntu)
• Supports cloud-init datasource interface

Installation

• Update your system

dnf update -y

• Install and configure KVM and KVM Management Tools on CentOS 8

dnf install @virt virt-top libvirt-devel libguestfs-tools -y

• Start and enable KVM libvirtd service

systemctl start libvirtd && systemctl enable libvirtd

• Download the installer script for webvirtCloud KVM Management

curl -o webvirtcloud-install.sh https://raw.githubusercontent.com/retspen/webvirtcloud/master/install.sh

• Make the script executable

chmod +x webvirtcloud-install.sh

• Then, Install WebVirtCloud KVM Management Dashboard by running the script.

./webvirtcloud-install.sh

• Agree to configure fqdn for Nginx as shown below by typing y then Enter name of nginx fqdn
• Also accept the NOVNC service and public port number and Listen address as shown

• The packages installation is ready to be executed by the script

•  The installation was successful, So you should copy the URL used below to access webvirtcloud web console.

• Go to http://kvm.unixcop.com , the login screen will be showed as follows, So enter the default login credentials which are :

username: admin

Password: admin

• Also you can Update your profile information, just go to admin>profile

• This information such as your name, last name and your email address
• Also you can change your login password from here.

NOTE: Now, we will add KVM Compute Hosts to Manage, but first we will generate ssh keys to access and connect these compute hosts

• Generate ssh keys

sudo -u nginx ssh-keygen

•  Disable StrictHostKeyChecking(Optional)

vim /var/lib/nginx/.ssh/config

• Then add the following

Host * 
StrictHostKeyChecking no

• Set an appropriate ownership of the SSH configuration file to nginx user

chown nginx -R /var/lib/nginx/.ssh/config

•  Upload webvirtcloud public key into authorized keys on the compute node.

For local KVM node:

cat /var/lib/nginx/.ssh/id_rsa.pub >>~/.ssh/authorized_keys

For remote KVM node:

sudo -u nginx ssh-copy-id root@exampleCompute1

• On the WebVirt Cloud, go to Computes then choose SSH.

• Choose SSH connection to add your KVM Nodes and input KVM node details as shown below.

• If everything is Ok, the Status of the new node should show Connected

Conclusion

That’s it

We illustrated how to install and configure WebVirtCloud KVM and also we created a computes.

Thank you.