Listen to this Post
AWS CloudWatch is a powerful monitoring tool that helps you track resources, set alarms, and automate responses in AWS. If you’re new to cloud monitoring, start small—focus on key metrics, use built-in dashboards, and avoid overcomplicating things.
You Should Know:
1. Monitoring CPU Usage on EC2 Instances
Track CPU utilization to prevent performance bottlenecks:
aws cloudwatch get-metric-statistics \ --namespace AWS/EC2 \ --metric-name CPUUtilization \ --dimensions Name=InstanceId,Value=i-1234567890abcdef0 \ --statistics Average \ --start-time 2024-05-01T00:00:00Z \ --end-time 2024-05-02T00:00:00Z \ --period 3600 \ --output json
2. Setting Up Budget Alerts
Avoid unexpected costs with billing alarms:
aws cloudwatch put-metric-alarm \ --alarm-name MonthlyBudgetAlert \ --metric-name EstimatedCharges \ --namespace AWS/Billing \ --statistic Maximum \ --period 21600 \ --evaluation-periods 1 \ --threshold 100 \ --comparison-operator GreaterThanOrEqualToThreshold \ --alarm-actions arn:aws:sns:us-east-1:123456789012:MyBudgetTopic
3. Creating Log Groups for Services
Centralize logs for debugging:
aws logs create-log-group --log-group-name "/aws/lambda/my-function" aws logs put-retention-policy --log-group-name "/aws/lambda/my-function" --retention-in-days 30
4. Auto-Scaling Based on Metrics
Automatically adjust EC2 instances based on demand:
aws autoscaling put-scaling-policy \
--auto-scaling-group-name my-asg \
--policy-name ScaleOnCPU \
--policy-type TargetTrackingScaling \
--target-tracking-configuration '{
"PredefinedMetricSpecification": {
"PredefinedMetricType": "ASGAverageCPUUtilization"
},
"TargetValue": 70.0
}'
5. Using CloudWatch Dashboards
Visualize metrics with pre-built dashboards:
aws cloudwatch get-dashboard --dashboard-name "MyEC2Dashboard"
What Undercode Say:
CloudWatch simplifies AWS monitoring by providing real-time insights without requiring deep expertise. Start with basic metrics, automate alerts, and gradually explore advanced features like log analysis and auto-scaling.
Expected Output:
A structured approach to AWS CloudWatch, including practical commands and best practices for beginners.
Useful Resources:
References:
Reported By: Riyazsayyad In – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
