One near constant that you have been seeing in the pages of The Next Platform is that the downside of having a slowing rate at which the speed of new processors is increasing is offset by the upside of having a lot more processing elements in a device. While the performance of programs running on individual processors might not be speeding up like we might like, we instead get huge capacity increases via today’s systems by having the tens through many thousands of processors.
You have also seen in these pages that our usual vanilla view of a processor or …
The Essentials Of Multiprocessor Programming was written by Timothy Prickett Morgan at The Next Platform.
Another facet to the 14-month-old partnership.
Other big NFV vendors must grapple with decision to join open source projects.
Did you know a large portion of Ansible’s functionality comes from the Ansible plugin system? These important pieces of code augment Ansible’s core functionality such as parsing and loading inventory and Playbooks, running Playbooks and reading the results. Essentially, Ansible uses plugins to extend what the system is doing under the hood.
In this blog, I’ll review each of these plugins and offer a high-level overview on how to write your own plugin to extend Ansible functionality.
Action Plugins
One of the core critical plugins used by Ansible are action plugins. Anytime you run a module, Ansible first runs an action plugin.
Action plugins are a layer between the executor engine and the module and allow for controller-side actions to be taken before the module is executed. A good example of this is the template module. If you look at template.py in the modules directory, it’s basically a Python stub with documentation strings, everything is done by the action plugin. The template action plugin itself creates the template file locally as a temporary file, and then uses the copy or file modules to push it out to the target system.
If Ansible finds an action plugin with the Continue reading