Refer to the following references for further information:
- CloudWatch documentation: https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/WhatIsCloudWatch.html
- CloudWatch regional endpoints: https://docs.aws.amazon.com/general/latest/gr/rande.html#cw_region
- Custom metrics: https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/publishingMetrics.html
- CloudWatch agent: https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/install-CloudWatch-Agent-on-first-instance.html
- CloudWatch enhanced monitoring scripts: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/mon-scripts.html
- CloudWatch alarms: https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/AlarmThatSendsEmail.html
- Troubleshooting EC2: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/TroubleshootingInstances.html
- Troubleshooting EC2 connectivity: https://docs.aws.amazon...