Visualizing Neutron Networking with GraphViz
I've put together a few tools to help gather information about your Neutron and network configuration and visualize it in different ways. All of these tools are available as part of my neutron-diag repository on GitHub.
In this post I'm going to look at a tool that will help you visualize the connectivity of network devices on your system.read more
An introduction to OpenStack Heat
Heat is a template-based orchestration mechanism for use with OpenStack. With Heat, you can deploy collections of resources -- networks, servers, storage, and more -- all from a single, parameterized template.
In this article I will introduce Heat templates and the
A unified CLI for OpenStack
This tool solves two problems I've encountered in the past:
Command line options between different command line clients are sometimes inconsistent …
json-tools: cli for generating and filtering json
Interacting with JSON-based APIs from the command line can be difficult, and OpenStack is filled with REST APIs that consume or produce JSON. I've just put pair of tools for generating and filtering JSON on the command line, called collectively json-tools.
Both make use of the Python dpath module to …read more
Quantum in Too Much Detail
I originally posted this article on the RDO website.
This document describes the architecture that results from a particular OpenStack configuration, specifically:
- Quantum networking using GRE tunnels;
- A dedicated network controller;
- A single instance running on a compute host
Much of the document will be relevant to other configurations, but details will vary based on your choice of layer 2 connectivity, number of running instances, and so forth.
The examples in this document were generated on a system with Quantum
networking but will generally match what you see under Neutron as
well, if you replace
neutron in names. The OVS flow
rules under Neutron are somewhat more complex and I will cover those
in another post.