Monitoring custom metrics using CloudWatch

This section will show how to install the CloudWatch agent to monitor custom metrics (memory and disk utilization). To achieve this, we need to follow a series of steps.

Downloading and installing the CloudWatch agent

Firstly, we need to download and install the CloudWatch agent package. To do so, we perform the following steps:

1. Log in to the EC2 instance by running the following command with your details filled in:

   ssh -i vpc-prod.pem ec2-user@<server public ip>

2. Download the CloudWatch agent with the following command:

   wget https://s3.amazonaws.com/amazoncloudwatch-agent/amazon_linux/amd64/latest/amazon-cloudwatch-agent.rpm

3. Install the CloudWatch agent using the following command:

   sudo rpm -ivh amazon-cloudwatch-agent.rpm 
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