details of IAM role which is attached to ec2 instances with cloudshell

Question

I want view details of IAM Role to how many instances it is attached to with Cloudshell, cli which commands should use give example.

lets assume I have IAM Role TestRole I want to know to how ec2 instances TestRole is attached to.

Accepted Answer

You will need to run this against all of your active regions to get a full count.
```
aws ec2 describe-instances \
    --output text \
    --region us-east-1 \
    --query Reservations[*].Instances[*].InstanceId \
    --filters Name=iam-instance-profile.arn,Values=$(aws iam list-instance-profiles-for-role \
        --role-name TestRole \
        --query InstanceProfiles[*].Arn \
        --output text) | wc -l
```

Answer

I am a newbie and did a little bit of research. I found this. See if it helps.    
1. Find instance profiles linked to role.
https://awscli.amazonaws.com/v2/documentation/api/latest/reference/iam/list-instance-profiles-for-role.html.    
2. Then find the instance profile and instance Id associations
https://docs.aws.amazon.com/cli/latest/reference/ec2/describe-iam-instance-profile-associations.html

details of IAM role which is attached to ec2 instances with cloudshell

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