# Amazon ECR service-linked role for repository creation templates
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Amazon ECR uses a service-linked role named **AWSServiceRoleForECRTemplate** which gives permission for Amazon ECR to perform actions on your behalf to complete repository creation template actions.

## Service-linked role permissions for Amazon ECR
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The **AWSServiceRoleForECRTemplate** service-linked role trusts the following service to assume the role.
+ `ecr.amazonaws.com`

**Permissions details**

The ``ECRTemplateServiceRolePolicy`` permissions policy is attached to the service-linked role. This managed policy grants Amazon ECR permission to perform repository creation actions on your behalf.

The `ECRTemplateServiceRolePolicy` policy contains the following JSON.

------
#### [ JSON ]

****  

```
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
	    "Sid": "CreateRepositoryWithTemplate",
            "Effect": "Allow",
            "Action": [
                "ecr:CreateRepository"
            ],
            "Resource": "*"
        }
    ]
}
```

------

You must configure permissions to allow an IAM entity (for example a user, group, or role) to create, edit, or delete a service-linked role. For more information, see [Service-linked role permissions](https://docs.amazonaws.cn/IAM/latest/UserGuide/using-service-linked-roles.html#service-linked-role-permissions) in the *IAM User Guide*.

## Creating a service-linked role for Amazon ECR
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You don't need to manually create the Amazon ECR service-linked role for repository creation template. When you create a repository creation template rule for your private registry in the Amazon Web Services Management Console, the Amazon CLI, or the Amazon API, Amazon ECR creates the service-linked role for you. 

If you delete this service-linked role and need to create it again, you can use the same process to recreate the role in your account. When you create a repository creation rule for your private registry, Amazon ECR creates the service-linked role for you again if it doesn't already exist.

## Editing a service-linked role for Amazon ECR
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Amazon ECR doesn't allow manually editing the **AWSServiceRoleForECRTemplate** service-linked role. After the service-linked role is created, you can't change the name of the role because various entities might reference the role. However, you can edit the description of the role using IAM. For more information, see [Editing a service-linked role](https://docs.amazonaws.cn/IAM/latest/UserGuide/using-service-linked-roles.html#edit-service-linked-role) in the *IAM User Guide*.

## Deleting the service-linked role for Amazon ECR
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If you no longer need to use a feature or service that requires a service-linked role, we recommend that you delete that role. That way, you don’t have an unused entity that isn't actively monitored or maintained. However, you must delete the repository creation rules for your registry in every Region before you can manually delete the service-linked role.

**Note**  
If you try to delete resources while the Amazon ECR service is still using the role, your delete action might fail. If that happens, wait for a few minutes and try again.

**To delete Amazon ECR resources used by the **AWSServiceRoleForECRTemplate** service-linked role**

1. Open the Amazon ECR console at [https://console.amazonaws.cn/ecr/](https://console.amazonaws.cn/ecr/).

1. From the navigation bar, choose the Region where your repository creation rules are created.

1. In the navigation pane, choose **Private registry**.

1. On the **Private registry** page, on the **Repository creation templates** section, choose **Edit**.

1. For each repository creation rule you have created, select the rule and then choose **Delete rule**.

**To manually delete the service-linked role using IAM**

Use the IAM console, the Amazon CLI, or the Amazon API to delete the **AWSServiceRoleForECRTemplate** service-linked role. For more information, see [Deleting a Service-Linked Role](https://docs.amazonaws.cn/IAM/latest/UserGuide/using-service-linked-roles.html#delete-service-linked-role) in the *IAM User Guide*.