This repository contains a very simple demo application that can be used to model complex distributed applications.
Each instance of the application can be given a site, tier, name and location. Each application listens for others application
instances. The connects_to config setting contains a list of other instances to connect to.
The application gossips the topology of the complete setup, including latencies over each link. Based on this topology a graph is rendered and available on the application.
For example, 4 instances that each using the config1-4.toml files in this repo, the following graph is created:
The application uses python 3.6 or python 3.7 and the python libraries listed in requirements.txt Additionally the
application requires dot which is commonly provided with the graphviz package.
The application has a basic set of unit tests. These tests can be executed with pytest. The correct procedure to run these tests is:
$ install graphviz
$ pip install -U -r requirements.txt
$ pip install .
$ pytest -vvv tests