Use open source Drain3 log-template mining project to monitor for network outages

This post details the refactoring of the original Drain log-template mining tool into Python 3 (Drain3), including improvements for streaming support and resiliency by using Kafka for state persistence. It also introduces masking for improved accuracy and packaging as a PyPI package. The post explains how log templates can be used to create time-series data for anomaly detection, enabling early identification of network outages.