Monitor EC2 Memory and Disk Utilisation using CloudWatch | AWS EC2 Monitoring with Cloudwatch | Monitor Memory and Disk Utilisation using CloudWatch | AWS CloudWatch Demo
Steps:
Step 1: Create an AWS EC2 IAM Role
Select the trusted entity as AWS SERVICE
Use Cases = EC2
Permission's = AmazonSSMFullAccess and CloudWatchAgentAdminPolicy and CloudWatchAgentServerPolicy
Name = EC2-Cloudwatch-Role
Click on Create role.
Step 2: Create a Parameter in Systems Manger
a. Go to the systems manager service
b. Click on the parameter store
c. Click on create parameter
Name = /alarm/AWS-CWAgentLinConfig
Store Value=
{
"metrics": {
"append_dimensions": {
"InstanceId": "${aws:InstanceId}"
},
"metrics_collected": {
"mem": {
"measurement": [
"mem_used_percent"
],
"metrics_collection_interval": 60
},
"disk": {
"measurement": [
"disk_used_percent"
],
"metrics_collection_interval": 60
}
}
}
}
Step 3: Create an EC2 Instance
--> Choose AMI = Linux AMI 2
--> During the Ec2 configuration Attach the IAM role created in Step 1
--> Add these commands in the Userdata Section.
#!/bin/bash
wget https://s3.amazonaws.com/amazoncloudwatch-agent/linux/amd64/latest/AmazonCloudWatchAgent.zip
unzip AmazonCloudWatchAgent.zip
sudo ./install.sh
sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -a fetch-config -m ec2 -c ssm:/alarm/AWS-CWAgentLinConfig -s
Check if EC2 Instance has CWAgent Installed or not By running this command in terminal:
sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -m ec2 -a status
If the Output is something like this that' s means the Agent is Configured
[ec2-user@ip-172-31-3-178 ~]$ sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -m ec2 -a status
{
"status": "running",
"starttime": "2024-01-17T12:07:13+0000",
"configstatus": "configured",
"version": "1.300032.3b392"
}