Solara server

The solara server enables running ipywidgets based applications without a real Jupyter kernel, allowing multiple "Virtual kernels" to share the same process for better performance and scalability.

Readyness check

To check if the server is ready to accept request, the /readyz endpoint is added, and should return a 200 HTTP status code, e.g.:

$ curl http://localhost:8765/readyz
curl -I localhost:8765

HTTP/1.1 200 OK
...

Telemetry

Solara uses Mixpanel to collect usage of the solara server. We track when a server is started, stopped and a daily report of the number of unique users and connections made. To opt out of mixpanel telemetry, either:

• Set the environmental variable SOLARA_TELEMETRY_MIXPANEL_ENABLE to False.
• Run in development mode (e.g. using $ solara run sol.py --dev)
• Install python-dotenv and put SOLARA_TELEMETRY_MIXPANEL_ENABLE=False in a .env file.