AWS Resource Access Manager (RAM) is a service that allows you to share AWS resources across AWS accounts or within your own account. RAM makes it easy to share resources like Amazon VPCs, subnets, Amazon Route 53 Resolver rules, AWS License Manager configurations, and AWS Transit Gateway attachments with other AWS accounts, without requiring you to create duplicate resources in each account.
Here are some examples of how AWS RAM can be used:
- Shared Amazon VPC: With AWS RAM, you can share an Amazon VPC that you own with another AWS account. This allows you to host resources like Amazon EC2 instances or RDS databases in a single VPC and share them securely with other AWS accounts. This simplifies network configuration and reduces the need for duplicate resources in each account.
- Shared Subnets: You can use AWS RAM to share subnets within your Amazon VPCs with other AWS accounts. This allows you to allocate IP address space within your VPCs to other accounts without giving them access to the entire VPC. This can be useful for isolating workloads or providing connectivity to resources in a controlled manner.
- Shared Transit Gateway: AWS RAM can be used to share an AWS Transit Gateway attachment with other AWS accounts. This allows you to centralize network routing and simplify network management for multiple accounts. You can route traffic between VPCs, VPN connections, and on-premises networks using a shared Transit Gateway attachment.
- Shared License Manager Configuration: AWS License Manager allows you to manage software licenses across your AWS accounts. With AWS RAM, you can share License Manager configurations with other accounts, allowing them to use your License Manager configuration to manage licenses for software deployed in their own account.
- Shared Route 53 Resolver Rules: AWS RAM can be used to share Amazon Route 53 Resolver rules with other AWS accounts. This allows you to centralize DNS resolution and simplify network management for multiple accounts. You can share a Resolver rule that maps a private DNS name to an IP address with other accounts.
AWS RAM provides a convenient way to share AWS resources securely across accounts. It allows you to simplify network configuration, reduce duplication of resources, and improve resource utilization.
