Application teams are responsible for monitoring their proxy and taking actions based on the metrics. CloudWatch collects and processes raw data such as DatabaseConnections, QueryRequests, and QueryResponseLatency from the proxies into readable, near-real-time metrics giving you continuous visibility into your proxy. You can monitor RDS Proxy by using Amazon CloudWatch. In this post, we use AWS RAM to share a private subnet from the database account with the application account. When resource sharing is enabled, you can use AWS RAM to securely share AWS resources that you create in one AWS account with other AWS accounts. The database account owns the Aurora database and RDS Proxy, while the application account owns the applications, for example microservices running on Lambda that need access to the database resources.įor this post, we created multiple AWS accounts to isolate and manage business applications and data using AWS Organizations, enabled resource sharing within Organizations, and configured a multi-VPC account architecture. In this post, we refer to “application” and “database” accounts to demonstrate the cross-VPC capabilities of RDS Proxy. Let’s dive into the steps to set this configuration up. These associations let you connect to the endpoint from the applications that otherwise can’t access the database due to the VPC restrictions. The VPC endpoint is associated with subnets and security groups from the same VPC as the EC2 instance and other resources. However, the VPC endpoint resides in the other VPC, along with the other resources such as EC2 instances. The proxy itself resides in the same VPC as the Aurora DB cluster or RDS instance. You create a new endpoint for the proxy using the subnet resource shared with the account where the RDS instance or Aurora clusters resides. RDS Proxy makes it easy to address this pattern by sharing the VPC subnet as a resource using AWS Resource Access Manager (RAM). For example, your organization might have multiple applications that access the same database resources and each application might be in its own VPC. With RDS Proxy, you can set up access to your RDS databases in one VPC from resources such as EC2 instances or an AWS Lambda function in another VPC. In this case, the application server and database must both be within the same VPC. For example, suppose that an application running on an Amazon Elastic Compute Cloud (Amazon EC2) instance connects to an RDS DB instance or an Aurora DB cluster. This adds additional operational overhead and may increase failover times.īy default, the components of your Amazon RDS and Aurora technology stack are all in the same VPC. Lastly, using AWS PrivateLink requires the use of Network Load Balancer plus an AWS Lambda function to make sure the database IP is kept up to date within the load balancer. Second, both VPC peering and AWS Transit Gateway don’t work for customers with overlapping CIDR blocks. First, you may want to limit exposure to your entire VPC, instead wanting to scope connectivity down to your RDS database. Each of these options has potential drawbacks. You can use VPC peering, AWS Transit Gateway, or an AWS PrivateLink custom solution. There are a few options to enable this pattern. Therefore, connecting to the RDS instance or Aurora cluster across different accounts than the applications become a very common architecture pattern. For more details, refer to AWS multi-account strategy: Best practices guidance. AWS best practices state that building each application or service out in a separate account ensures that they have room to scale within service quotas. Or the services need to talk to the same RDS databases where their private database or schema is hosted. In many organizations, development teams of different applications or services may need access to the same underlying data. When talking to customers, we often encounter situations where multiple applications need to connect to the same RDS instance or Aurora clusters. In this post, we show how to securely and efficiently connect multiple applications in different AWS accounts to a single RDS instance or Amazon Aurora cluster using Amazon RDS Proxy. With RDS Proxy, you can handle unpredictable surges in database traffic that might otherwise cause issues due to oversubscribing connections or creating new connections at a fast rate. Amazon RDS Proxy is a fully managed, highly available database proxy for Amazon Relational Database Service (Amazon RDS) that makes applications more scalable, more resilient to database failures, and more secure.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |