Monitoring AWS Services Using CloudWatch and SNS

• CloudWatch is a monitoring service used to monitor resources and applications running on AWS.

• Cloud Watch monitors resources by publishing metrics

• To get the complete list of services that publish Cloud Watch Metrics Refer Here

• Refer Here for the EC2 specific metrics

• Lab Setup:

  • Create an EC2 instance (t2.micro)
  • Create an RDS instance (db.t2.micro)

• Navigate to the monitoring section in EC2 instance

• Find out the metrics published by cloud watch for rds Refer Here for the metrics

• Querying metrics for Service using CLI

 aws cloudwatch list-metrics --namespace AWS/RDS --query "Metrics[*]. MetricName" --output table

 aws cloudwatch list-metrics --namespace AWS/EC2 --query "Metrics[*]. MetricName" --output table

 aws cloudwatch list-metrics --namespace AWS/DynamoDB --query "Metrics[*]. MetricName" --output table

• Navigate to AWS CloudWatch

• Create a dashboard to show the

  • CPU Utilization
  • Database Connections
  • Network packets in all ec2 instances

• Terms

  • Metric
  • Dimension