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Project description
Python package to interact with GNS3. Usage requires a single call to initialize the GNS3API object.
$pip install pygns3 >>> from pygns3 import * >>> GNS3API.load_configuration()
It leverages the GNS3 built in API and aims to provide some additional functionality such as custom/bulk interaction with projects and nodes. I have started using GNS3 recently so walking multiple learning curves here. Any ideas / suggestions / constructive criticism is more than welcome.
For now it is Python 3.6 (I think) only. It is what I use, and it is way too early to start thinking about compatibility with older versions.
I am using the API documentation as a starting point, and implement the Controller endpoints only (for now). The implemented functionality is shown in an example Jupyter Notebook.
The package is available on PyPi but right now I am still discovering and changing a lot. Things change and break fast so Github may be more up to date.
Classes
A number of classes are available once the GNS3API class has been initialized.
GNS3Controller
is the main component interacting with GNS3. After a successful connection the controller object holds some basic properties and allows for further inspection and interaction with GNS3.
>>> print(GNS3Controller())
GNS3 Controller API endpoint
Host http://127.0.0.1:3080
Version 2.0.3
Running 2 Computes
Other
for now, check the Example jupyter notebook..
What is the purpose?
As I am learning and working with GNS3 I’m not sure what exactly this should lead to, but the first thing that comes to mind is parallel commands towards nodes, or other (bulk) manipulations. Not sure what other scenario’s will look like but I guess being able to interact with GNS3 from python could come in handy here or there.
Issues
At the moment mostly my lack of a complete understanding and familiarity with GNS3. There are some (perceived) inconsistencies in the underlying API. Once I have implemented all (or most) classes I will dive deeper and see if I can clarify.
Next steps
Implement some sub components and methods on them. Then add some custom functions which operate on multiple nodes or provide command line visualization. Oh and telnet interaction of course. Perhaps some configuration diffing or synchronization? who knows.
Plus also perhaps… improvements, error handling, docstrings etc etc etc… and other yak shaving.
