If you already have CloudWatch agent setup in your environment, then you must add metrics and dimensions to the CloudWatch agent configuration file.

If you do not have the CloudWatch agent setup, then you can run the Unravel bootstrap script, which will set up the CloudWatch agent in your environment.

If CloudWatch agent setup is available in your environment

Add the following metrics and dimensions to the CloudWatch agent configuration file:

{
  "agent": {
    "metrics_collection_interval": 60
  },
  "metrics": {
    "append_dimensions": {
      "AutoScalingGroupName": "${aws:AutoScalingGroupName}",
      "ImageId": "${aws:ImageId}",
      "InstanceId": "${aws:InstanceId}",
      "InstanceType": "${aws:InstanceType}",
      "InstanceName": "${aws:InstanceName}"
    },
    "metrics_collected": {
      "mem": {
        "measurement": [
          "mem_used_percent"
        ],
        "metrics_collection_interval": 60
      },
      "cpu": {
        "measurement": [
          "cpu_usage_idle",
          "cpu_usage_iowait",
          "cpu_usage_user",
          "cpu_usage_system"
        ],
        "metrics_collection_interval": 60,
        "resources": [
          "*"
        ],
        "totalcpu": False
      }
    }
  }
}

If CloudWatch agent setup is NOT available in your environment

CloudWatch agent is packaged as part of the Unravel bootstrap script so to enable the setup of the CloudWatch agent, you must add the following optional argument within the bootstrap action: