AWS Resource Access Manager (AWS RAM)

aws/security aws/management aws/service

💡 Definition

AWS Resource Access Manager (AWS RAM) is a service that enables you to easily and securely share your AWS resources with any AWS account or within your AWS Organizations. This helps reduce operational overhead by centralizing resource management and avoiding resource duplication.

🔑 Key Concepts

Centralized Sharing: Allows owners of resources to share them with other AWS accounts or organizational units (OUs).
Supported Resources: You can share various resources, including VPC subnets, AWS Transit Gateway associations, License Manager configurations, Route 53 Resolver rules, and more.
Cross-Account/Cross-Organization: Facilitates resource sharing within and across AWS accounts, making multi-account strategies more efficient.
Cost-Effectiveness: Avoids the need to duplicate resources across accounts, leading to cost savings and simplified management.

⚙️ How it Works

The resource owner creates a "resource share" in AWS RAM, specifying the resource(s) to be shared and the AWS accounts or OUs with whom to share them. The recipient account then accepts the resource share, and the shared resource becomes accessible within their account. For example, a central networking account can share VPC subnets with application accounts, allowing them to deploy resources into those subnets without creating new VPCs.

🎯 Use Cases

Multi-Account Strategy: Implementing a multi-account AWS environment where common resources (like transit gateways or security appliances) need to be accessed by many accounts.
Shared Networking: Sharing VPC subnets or Transit Gateways to simplify network architecture and connectivity.
License Management: Centralizing License Manager configurations for an organization.
Disaster Recovery: Facilitating shared access to resources in a DR setup.

💰 Pricing Model

Free: AWS RAM is a free service. You only pay for the AWS resources that you share and use.

📝 Exam Tips (CLF-C02)

Keywords: "Share resources", "Cross-account", "AWS Organizations", "VPC subnets", "Transit Gateway".
Understand that RAM is about sharing existing resources to improve efficiency and governance in multi-account environments.
Helps avoid resource duplication and simplifies the management of shared infrastructure.

See Also: * AWS Organizations * VPC * Subnet * Transit Gateway