Change AWS authentication from credential based to role based
The following steps have been provided as an example to help you to change authentication from a credential based cloud account to a role based cloud account:
Steps
- In the Edit Cloud Account page, select Role based.
 - Log in to the AWS Management Console.
 -  
		  Complete the following steps to create a role: 
		   
		  
- In the navigation pane of the IAM console, select Roles, and then click Create role.
 - Select the type of trusted entity as Another AWS Account.
 - Copy the Trusted Account number from Cloud Snapshot Manager and paste it in the Account ID field of the console.
 -  
				In 
				  Options, select 
				   Require external ID. 
				 
				Do not select Require MFA.
 - Copy the External ID value from Cloud Snapshot Manager to the External ID field of the console, and then click Next: Permissions.
 - Click Next: Tags.
 - Click Next: Review.
 - Enter a unique role name, review the role, and click Create role.
 - Search for the new role and copy the role ARN value.
 
 -  
		   Complete the following to create a policy: 
		   
		  
-  
				Copy content from 
				  AWS minimum permission policy. 
				 
				For details about each AWS permission and how it is used by Cloud Snapshot Manager, see AWS permission usage.
 - In the navigation pane of the IAM console, select Policies, and then click Create policy.
 - Select the JSON tab, and paste the copied content from the portal.
 - Click Review policy.
 - Enter a policy name and click Create policy.
 
 -  
				Copy content from 
				  AWS minimum permission policy. 
				 
				
 -  
		  Associate the policy with the role using the following steps: 
		   
		  
- Search for the role in the Roles page and click on it.
 - Under the Permissions tab, click Attach Policies and search for the newly created policy.
 - Select the policy and click Next: Review.
 - Click Attach Policy.
 
 - Paste the role ARN value for the newly created role in the corresponding field in Cloud Snapshot Manager.
 - Click Save.