In previous videos I demonstrated how to collect Event logs from a Windows server in Azure Log Analytics. You may need to also collect custom logs from applications that don’t log to the event log. In this video I show how to collect custom logs in Azure Log Analytics. Once collected, I also show how to define custom fields in those custom logs and run queries against it.

Post on adding the Microsoft Monitoring Agent to a computer can be found here.
Script used to create custom logs:
https://github.com/tsrob50/LogAnalyticsCustomLog/
Relevant Microsoft Documentation:
https://docs.microsoft.com/en-us/azure/log-analytics/log-analytics-data-sources-custom-logs
https://docs.microsoft.com/en-us/azure/log-analytics/log-analytics-custom-fields