Change IAM ROLE AWS

change_iam_role

#Get id IAM Profile
# --profile name_of_profile, if needed 
aws ec2 describe-iam-instance-profile-associations --filters "Name=instance-id,Values=i-00000000000000"

Result:
{
  "IamInstanceProfileAssociations": [
  {
  "InstanceId": "i-000000000000000",
  "State": "associated",
  "AssociationId": "iip-assoc-000000000000",
  "IamInstanceProfile": {
  "Id": "AAAAAAAAAAAAAAAAA",
  "Arn": "arn:aws:iam::00000000:instance-profile/name_of_role"
  }
  }
  ]
}

#Change iam role
aws ec2 replace-iam-instance-profile-association --association-id iip-assoc-00000000000000 --iam-instance-profile Name="name_of_role"