Troubleshooting ec2 Guardduty runtime agent not reporting

Question

I am following [the steps](https://docs.aws.amazon.com/guardduty/latest/ug//managing-gdu-agent-ec2-manually.html) to enable the GuardDuty security agent on my ec2 instances which are used in a ecs cluster.

The ec2 instance is running and when I run `sudo systemctl status amazon-guardduty-agent`

it shows
```
amzn_guardduty_agent_ecs: GuardDuty agent started
amzn_guardduty_agent_ecs: Type Ctrl+C to terminate
```

I've crated a VPC endpoint with private subnet the ec2 instance is in, with dns enabled and a security group applied allowing 443 inbound from 0.0.0.0/0 but it's still reporting as agent no reporting in the AWS Guardduty dashboard.

What is the endpoint that is called / is there any further troubleshooting I can do from the ec2 instance?

Answer

Validate Prerequisites for Amazon EC2 instance support here - https://docs.aws.amazon.com/guardduty/latest/ug/prereq-runtime-monitoring-ec2-support.html

Answer

The IAM role assigned to the EC2 hosts must have the policy AWSServiceRoleForAmazonGuardDuty

Is this the case?

Troubleshooting ec2 Guardduty runtime agent not reporting

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