Virtuozzo – Basics

Virtuozzo is a software application for enterprise server virtualization that allows an administrator to create virtual environments on a host computer at the operating system (OS) layer. Instead of having one physical machine run multiple operating systems simultaneously, as the virtual machine model used by VMware, Virtuozzo approaches virtualization by running a single OS kernel as its core and exporting that core functionality to various partitions on the host.

Each of the partitions effectively becomes a stand-alone entity called a virtual private server (VPS)

Installation in a CentOS box:
Before proceeding to the installation of virtuzzo make sure you have the partition /vz or
create it if you are installing on a fresh server

/vz contains all container data and parallels virtuzzo containers templates

Download the vzinstall-linux-x86_64.bin utilty from the oficial site.
Make the script executable by # chmod a+x vzinstall-linux-x86_64.bin
Run the script by # ./vzinstall-linux-x86_64.bin

You will get the following wizard :
Either you can download and install or install for future or on any other computer.
The configure options allow you to configure the various parameters that the virtuozzo
containers use during the execution. If you select the option download only, after the download is over, go the download directory (root/virtuzzo/Download ) and copy the content of this directory to the system where you are planning to install virtuzzo and execute the following script:

# ./virtuozzo-4.7.0-<build_version>-x86_64.sfx

If you select the option download and install you can either do it in 3 ways:
Default: Select this radio button to download and install the Parallels Virtuozzo Containers program files and one OS template—CentOS 5 (you will need this OS template to create Containers on its basis).

Full: Select this radio button to download all available OS templates to the server and install them there.

Custom: Select this radio button to customize the set of OS templates to download to and install on the server. In this case, once you click the Next button, you will see the Select Templates window where you can choose the necessary OS templates for downloading

In the next step of wizard, click download to start download paralells virtuzzo containers and selected templates to the server.

In the next step you would be asked for the license key.

Install a valid Parallels license by entering the license key number in the field provided and clicking Next. If you plan to activate Parallels Virtuozzo Containers with an activation code,make sure that your server is connected to the Internet

Finally, the installation program displays the Congratulations window.

Leave the Install PVA Agent and Install PVA Management Node check boxes selected to set up the Parallels Virtual Automation application and its components on the server once you restart it. With Parallels Virtual Automation, you can connect to the server and manage Containers using your favorite browser. If you select both check boxes, the installer does the following after restarting the server:

1. Downloads the installation packages for Parallels Virtual Automation from the Parallels website.

2. Install the PVA Agent component on the server. PVA Agent ensures the interaction between your server, the Management Node (see below), and Parallels Virtual Automation. Without this component installed, you will not be able to connect to your server using Parallels Virtual Automation.

3. Creates a special Container on the server and installs the PVA Management Node
component inside it. PVA Management Node (also called Master Server) ensures the
communication between the server running Parallels Virtuozzo Containers (known as Slave
Server) and the Parallels Virtual Automation application. The Master Server keeps a
database with the information about all registered Slave Servers.

If you have already set up a Master Server, you can skip this step (clear Install PVA Management Node check box).

After this step you will be asked for the IP address and hostname and DNS of the container which

will act as the PVA management node.

To log in to Parallels Virtual Automation, launch a Web browser compatible with PVA

The list of currently supported Web browsers is given below:

• Internet Explorer 6.0 and above
• Firefox 2.x and above
• Safari 3.x and above

On the Master Server or any other computer, open your favorite Web browser and log in to Parallels Virtual Automation by typing the Master Server IP address or hostname and TCP port 4648 in the address bar.

Login using the username and password of the container which acts as the PVM

Manually setting up PVA and management node
Create the container : vzctl create CTID –ostemplate centos-6-x86_64 –hostname “hostname”
Set the ip address and nameserver for the created container which will act as the MN

# vzctl start CTID
# vzpkg install CTID -p perl-DBI

Download PVA Management Node installer

# wget ... loy.x86_64
# chmod a+x pva-setup-deploy.x86_64
# ./pva-setup-deploy.x86_64 -d /vz/root/CTID/root/ --extract
# vzctl enter CTID
# cd /root
# ./pva-setup --install