20-01 Logging Services

Last updated Aug 27, 2023 Edit Source

Amazon Web Services (AWS) provides service-specific operational metrics and log files to give customers insight into how the service is operating.

Cloud Trail - logs all API calls (SDK, CLI) between various AWS services

Example Questions that CloudTrail can answer:

Who created this bucket? - detect developer mis-configuration
Who spun up that expensive EC2 instance? - Detect malicious actors
Who launched this SageMaker notebook? - Automate responses

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CloudWatch - is a collection of multiple services

• CloudWatch Logs : Performance data about AWS Services eg. CPU Utilization, Memory, Network in Application Logs eg. Rails, Nginx Lambda Logs
• CloudWatch Metrics: Represents a time-ordered set of data points. A variable to monitor
• CloudWatch Events: trigger an event based on a condition eg. every hour take a snapshot of the server
• CloudWatch Alarms: triggers notifications based on metrics
• CloudWatch Dashboard: create visualizations based on metrics

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AWS X-Ray is a distributed tracing system. You can use it to pinpoint issues with your microservices.​ See how data moves from one app to another, how long it took to move, and if it failed to move forward.