Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Amazon managed policies for MemoryDB

To add permissions to users, groups, and roles, it is easier to use Amazon managed policies than to write policies yourself. It takes time and expertise to create IAM customer managed policies that provide your team with only the permissions they need. To get started quickly, you can use our Amazon managed policies. These policies cover common use cases and are available in your Amazon account. For more information about Amazon managed policies, see Amazon managed policies in the IAM User Guide.

Amazon services maintain and update Amazon managed policies. You can't change the permissions in Amazon managed policies. Services occasionally add additional permissions to an Amazon managed policy to support new features. This type of update affects all identities (users, groups, and roles) where the policy is attached. Services are most likely to update an Amazon managed policy when a new feature is launched or when new operations become available. Services do not remove permissions from an Amazon managed policy, so policy updates won't break your existing permissions.

Additionally, Amazon supports managed policies for job functions that span multiple services. For example, the ReadOnlyAccess Amazon managed policy provides read-only access to all Amazon services and resources. When a service launches a new feature, Amazon adds read-only permissions for new operations and resources. For a list and descriptions of job function policies, see Amazon managed policies for job functions in the IAM User Guide.

Amazon managed policy: MemoryDBServiceRolePolicy

You cannot attach the MemoryDBServiceRolePolicy Amazon managed policy to identities in your account. This policy is part of the Amazon MemoryDB service-linked role. This role allows the service to manage network interfaces and security groups in your account.

MemoryDB uses the permissions in this policy to manage EC2 security groups and network interfaces. This is required to manage MemoryDB clusters.

Permissions details

This policy includes the following permissions.

 {
        "Version": "2012-10-17",
        "Statement": [
            {
                "Sid": "CreateMemoryDBTagsOnNetworkInterfaces",
                "Effect": "Allow",
                "Action": [
                    "ec2:CreateTags"
                ],
                "Resource": "arn:aws:ec2:*:*:network-interface/*",
                "Condition": {
                    "StringEquals": {
                        "ec2:CreateAction": "CreateNetworkInterface"
                    },
                    "ForAllValues:StringEquals": {
                        "aws:TagKeys": [
                            "AmazonMemoryDBManaged"
                        ]
                    }
                }
            },
            {
                "Sid": "CreateNetworkInterfaces",
                "Effect": "Allow",
                "Action": [
                    "ec2:CreateNetworkInterface"
                ],
                "Resource": [
                    "arn:aws:ec2:*:*:network-interface/*",
                    "arn:aws:ec2:*:*:subnet/*",
                    "arn:aws:ec2:*:*:security-group/*"
                ]
            },
            {
                "Sid": "DeleteMemoryDBTaggedNetworkInterfaces",
                "Effect": "Allow",
                "Action": [
                    "ec2:DeleteNetworkInterface",
                    "ec2:ModifyNetworkInterfaceAttribute"
                ],
                "Resource": "arn:aws:ec2:*:*:network-interface/*",
                "Condition": {
                    "StringEquals": {
                        "ec2:ResourceTag/AmazonMemoryDBManaged": "true"
                    }
                }
            },
            {
                "Sid": "DeleteNetworkInterfaces",
                "Effect": "Allow",
                "Action": [
                    "ec2:DeleteNetworkInterface",
                    "ec2:ModifyNetworkInterfaceAttribute"
                ],
                "Resource": "arn:aws:ec2:*:*:security-group/*"
            },
            {
                "Sid": "DescribeEC2Resources",
                "Effect": "Allow",
                "Action": [
                    "ec2:DescribeSecurityGroups",
                    "ec2:DescribeNetworkInterfaces",
                    "ec2:DescribeAvailabilityZones",
                    "ec2:DescribeSubnets",
                    "ec2:DescribeVpcs"
                ],
                "Resource": "*"
            },
            {
                "Sid": "PutCloudWatchMetricData",
                "Effect": "Allow",
                "Action": [
                    "cloudwatch:PutMetricData"
                ],
                "Resource": "*",
                "Condition": {
                    "StringEquals": {
                        "cloudwatch:namespace": "AWS/MemoryDB"
                    }
                }
            },
            {
	         "Sid": "ReplicateMemoryDBMultiRegionClusterData",
		   "Effect": "Allow",
		   "Action": [
				"memorydb:ReplicateMultiRegionClusterData"
		   ],
                "Resource": "arn:aws:memorydb:*:*:cluster/*"
            }
        ]
    }

Amazon-managed (predefined) policies for MemoryDB

Amazon addresses many common use cases by providing standalone IAM policies that are created and administered by Amazon. Managed policies grant necessary permissions for common use cases so you can avoid having to investigate what permissions are needed. For more information, see Amazon Managed Policies in the IAM User Guide.

The following Amazon managed policies, which you can attach to users in your account, are specific to MemoryDB:

AmazonMemoryDBReadOnlyAccess

You can attach the AmazonMemoryDBReadOnlyAccess policy to your IAM identities. This policy grants administrative permissions that allow read-only access to all MemoryDB resources.

AmazonMemoryDBReadOnlyAccess - Grants read-only access to MemoryDB resources.

{
	"Version": "2012-10-17",
	"Statement": [{
		"Effect": "Allow",
		"Action": [
			"memorydb:Describe*",
			"memorydb:List*"
		],
		"Resource": "*"
	}]
}

AmazonMemoryDBFullAccess

You can attach the AmazonMemoryDBFullAccess policy to your IAM identities. This policy grants administrative permissions that allow full access to all MemoryDB resources.

AmazonMemoryDBFullAccess - Grants full access to MemoryDB resources.

{
	"Version": "2012-10-17",
	"Statement": [{
			"Effect": "Allow",
			"Action": "memorydb:*",
			"Resource": "*"
		},
		{
			"Effect": "Allow",
			"Action": "iam:CreateServiceLinkedRole",
			"Resource": "arn:aws-cn:iam::*:role/aws-service-role/memorydb.amazonaws.com/AWSServiceRoleForMemoryDB",
			"Condition": {
				"StringLike": {
					"iam:AWSServiceName": "memorydb.amazonaws.com"
				}
			}
		}
	]
}

You can also create your own custom IAM policies to allow permissions for MemoryDB API actions. You can attach these custom policies to the IAM users or groups that require those permissions.

MemoryDB updates to Amazon managed policies

View details about updates to Amazon managed policies for MemoryDB since this service began tracking these changes. For automatic alerts about changes to this page, subscribe to the RSS feed on the MemoryDB Document history page.