Vagrant is one of the ubiquitous devops tool for provisioning and managing operating environments on multitude of platforms – KVM, Virtualbox, AWS, Softlayer, Rackspace etc. In this article, we’ll see how to use Vagrant...
Nagios is an open source IT infrastructure monitoring tool, and is very common in datacenters. Initial roll-out of Nagios in a datacenter is bit of a challenge. However, with the introduction of appliance delivery...
Host aggregate is a way to group hosts. A host aggregate is created by assigning key-value pairs to group of machines. Note that only cloud administrators can configure and manage host aggregates. A host...
KVM supports VirtIO random number generator (RNG) which is a paravirtualized device that is exposed as a hardware RNG device to the guest. On the host, it can be hooked up to a real...
Quite often application requirements would demand using locally attached disks (or direct attached disks) for OpenStack compute instances. One such example is running virtual hadoop clusters via OpenStack. A virtual hadoop cluster on OpenStack...
This article should help you to create a dockerized application on IBM Power processor based servers . I’ll be taking WordPress as an example application and show you how to dockerize it on Power...
[Update – docker is now available as part of Ubuntu Vivid for Power LE. Also upstream docker can now be built on Ubuntu without requiring any custom patches. For more information please refer here...
Here I’m illustrating how to create your own OpenStack images for use with KVM compute nodes. I’ll be taking the example of PowerKVM compute node. However, the same instruction applies for Intel/KVM as well....
