Vitalii Vokhmin

In the recent Ubuntu version php5 is not available anymore. This PR changes the following: - update PHP to version 7 - update supervisor config accordingly - update nginx config...

In case of an uncaught exception it would be nice to email the traceback for better visibility.

``` Task exception was never retrieved future: Traceback (most recent call last): File "/usr/local/lib/python3.5/asyncio/tasks.py", line 239, in _step result = coro.send(None) File "/usr/src/app/uz/scanner.py", line 117, in scan data['date'], data['source'], data['destination'],...

feat: expose `runningCount` and `totalCount` in notebook controller metrics

5

This PR fixes the` notebook_running` metric and adds a new one: - `notebook_running` - returns the count of actually running notebooks (replicas > 0) - `notebook_total` - returns the total...