Master AWS Cloud Computing From Scratch

Clear, interactive, and structured AWS lessons designed for absolute beginners.

Amazon CloudWatch

CloudWatch provides monitoring and observability capabilities such as metrics, logs and alarms for AWS resources and applications.

Why it matters

Running infrastructure is not enough; operators need evidence about health and behavior.

How it works

Resource/application emits telemetry → CloudWatch stores/aggregates it → dashboards/alarms help operators respond.

Real-world example: Monitor EC2 CPU utilization and application logs while investigating a slow API.

Core Concept

CloudWatch provides metrics, logs and alarms used for monitoring and operations.

Use it to detect failures, capacity issues and abnormal behavior.

ApplicationMetrics + LogsCloudWatchMetricsLogsAlarm

What you should remember

Key idea

CloudWatch provides metrics, logs and alarms used for monitoring and operations.

Key idea

Use it to detect failures, capacity issues and abnormal behavior.

Real-world example

Use a realistic cloud workload and focus on the responsibility of this AWS service.

User → AWS service → application → data / response

Choose the service that matches the responsibility instead of forcing every workload into one resource.

# Conceptual workflow aws-service --resource example # Verify configuration → test → monitor → clean up
Practice tip: Build the smallest possible lab, verify the result, then remove resources you no longer need.

Quick Test

1 Question

What is CloudWatch mainly used for?