NRE-Bytes

Morsels of NRE Wisdom

Building Dynamic Inventories in Nornir

Extending Nornir's functionality to build dynamic inventories from Netbox

Building Dynamic Inventories in Nornir Organizing your Nornir inventory into multiple groups based on device attributes is a useful feature that allows running tasks against specific groups of hosts. Other frameworks like Ansible ship with a powerful dynamic inventory management system that allows grouping and filtering. While Nornir 3.0 has a community driven Netbox Plugin, it is pretty basic and includes a simple way to pull in hosts from Netbox. In this blog post, we will see how we can extend this Netbox plugin to build a dynamic inventory with powerful grouping and run-time filtering capabilities.

Posted by mayuresh82 Monday, December 21, 2020

BGP based Anycast as a Service

A primer on GoCast

Orchestration and Service Discovery The term orchestration, in part, refers to the automated deployment of services or applications inside of your infrastructure. The orchestration solution takes care of things like resource allocation, entitlements and the placement of an application or a service on a machine or a group of machines. If the machine your service is deployed on fails for some reason, the orchestration system automatically detects the failure and re-deploys the service according to the service policy.

Posted by mayuresh82 Saturday, November 28, 2020

Getting started with Network Automation

Guidelines for a network engineer

Getting Started with Network Automation Network Automation is the “art” of automating repetitive tasks related to network provisioning, deployment, monitoring and alerting. The reason its an art is because you can conceptualize and develop very creative methods to achieve your network automation goals. To get started, it is important to first identify a problem that needs to be solved, ideally a simple one. This helps establish clear goals and helps navigate the myriad web of libraries and open source tools available at your disposal.

Posted by mayuresh82 Monday, May 6, 2019

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Network Reliability Engineer, fitness enthusiast and adventurer