Overview
Before connecting to a DB instance, you must create one first. For details about how to create a DB instance, see Step 1: Create a DB Instance. You can connect to a DB instance through a private network or a public network.
Connect Through | IP Address | Scenarios | Description |
|---|---|---|---|
Floating IP | RDS provides a floating IP address by default. When your applications are deployed on an ECS that is in the same region and VPC as RDS, you are advised to use a floating IP address to connect to the RDS DB instance through the ECS. |
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EIP | If you cannot access an RDS DB instance through a floating IP address, bind an EIP to the DB instance and connect the DB instance through the EIP. |
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- VPC: Virtual Private Cloud
- ECS: Elastic Cloud Server
- EIP: Elastic IP
- If the ECS is in the same VPC as your RDS DB instance, you do not need to apply for an EIP.
Figure 1 illustrates the connection over a private network or a public network.
Figure 1 DB instance connection
