Monitor and troubleshoot using system, application and

custom log files

Real time application and system monitoring:

Use CloudWatch Logs Insights to write queries and get actionable insights

Monitor for patterns in your logs and trigger alerts based on them

Example : Errors in a specific interval exceed a certain threshold

Use CloudWatch Container Insights to monitor, troubleshoot and set

alarms for your containerized applications - EKS, ECS and Fargate

Long term log retention:

Store logs in CloudWatch Logs for as long as you want

Default - forever. Configure expiry of your logs at log group level.

Or archive logs to S3 bucket

Or stream real time to Amazon Elasticsearch Service (Amazon ES) cluster

using CloudWatch Logs subscription