help-aws_cloudwatch_agent.md

How to setup the CloudWatch agent and use a Parameter Store

1. https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/download-CloudWatch-Agent-on-EC2-Instance-SSM-first.html

2. https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/create-cloudwatch-agent-configuration-file-wizard.html

sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-config-wizard

3. https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/install-CloudWatch-Agent-on-EC2-Instance-fleet.html

sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -a fetch-config -m ec2 -c ssm:AmazonCloudWatch-linux-basic -s

Basic Parameter Store

Tier: standard Type: string

Value:

{
	"agent": {
		"metrics_collection_interval": 60,
		"run_as_user": "cwagent"
	},
	"logs": {
		"logs_collected": {
			"files": {
				"collect_list": [
					{
						"file_path": "/var/log/syslog",
						"log_group_name": "syslog",
						"log_stream_name": "{instance_id}"
					}
				]
			}
		}
	},
	"metrics": {
		"append_dimensions": {
			"AutoScalingGroupName": "${aws:AutoScalingGroupName}",
			"ImageId": "${aws:ImageId}",
			"InstanceId": "${aws:InstanceId}",
			"InstanceType": "${aws:InstanceType}"
		},
		"metrics_collected": {
			"collectd": {
				"metrics_aggregation_interval": 60
			},
			"cpu": {
				"measurement": [
					"cpu_usage_idle",
					"cpu_usage_iowait",
					"cpu_usage_user",
					"cpu_usage_system"
				],
				"metrics_collection_interval": 60,
				"totalcpu": false
			},
			"disk": {
				"measurement": [
					"used_percent",
					"inodes_free"
				],
				"metrics_collection_interval": 60,
				"resources": [
					"*"
				]
			},
			"diskio": {
				"measurement": [
					"io_time"
				],
				"metrics_collection_interval": 60,
				"resources": [
					"*"
				]
			},
			"mem": {
				"measurement": [
					"mem_used_percent"
				],
				"metrics_collection_interval": 60
			},
			"statsd": {
				"metrics_aggregation_interval": 60,
				"metrics_collection_interval": 10,
				"service_address": ":8125"
			},
			"swap": {
				"measurement": [
					"swap_used_percent"
				],
				"metrics_collection_interval": 60
			}
		}
	}
}

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Misc links: https://awssecurity.cloud/2018/10/10/cloudwatch-monitoring-memory-and-disk-metrics-for-amazon-ec2-linux-instances/