Installation guide

Managing EZ Templates

Setting Up a Proxy Server for EZ Templates

You can set up special caching proxy servers and use them to efficiently manage your OS and

application EZ templates. The following figure illustrates an example network configuration that

contains two Nodes and a separate proxy server:

In this configuration:

• The caching proxy server sits between the Nodes (Hardware Node 1 and Hardware Node 2)

and keeps a number of EZ templates and the repositories (Repository 1, Repository 2, and

Repository 3) storing the packages for these EZ templates.

• When either Node requests certain packages from any repository for the first time, these

packages are first downloaded to the proxy server where they are cached and then

downloaded to the corresponding Node.

• When a Node requests a package that is already available in the cache on the proxy server and

none of the repositories has updates for the package, this package is immediately downloaded

to the Node from the proxy server. If any updates are available in the official repositories, the

procedure of handling these updates is identical to that of the main packages: The update is

downloaded to the proxy server where it is cached and then retransmitted to the corresponding

Node.

• A special script is automatically run on the proxy server at set intervals. During its execution, the

script creates a local repository from the cached packages. All you have to do is to configure

the vzpkg tool to use packages from this repository instead of obtaining them from remote

repositories.