Help & DocumentationTencentDB for MySQLBest Practice Creating VPCs for TencentDB for MySQL

Creating VPCs for TencentDB for MySQL

Last updated: 2020-05-26 15:51:44

PDF

Tencent Cloud provides Virtual Private Cloud (VPC), a platform for hosting TencentDB instances. You can launch Tencent Cloud resources in a VPC, such as TencentDB instances.

A common scheme is to share data between a TencentDB instance and a web server running in the same VPC. This document uses this scheme to create a VPC and add a TencentDB instance to it.
This document describes how to add CVM and TencentDB for MySQL instances in the same VPC for interconnection between Tencent Cloud resources over the private network in the VPC.

Step 1. Create a VPC

A VPC has at least one subnet, and Tencent Cloud service resources can only be added in a subnet.

  1. Log in to VPC Console.
  2. Select the region of the VPC at the top of the list and click +New.
  3. Enter the VPC information and original subnet information and click OK. The CIDRs of the VPC and subnet cannot be modified after creation.
    • The VPC CIDR can be any of the following IP ranges. If you want two VPCs to communicate with each other over the private network, their CIDRs should not overlap.
      • 10.0.0.0 - 10.255.255.255 (mask range required to be between 16 and 28)
      • 172.16.0.0 - 172.31.255.255 (mask range required to be between 16 and 28)
      • 192.168.0.0 - 192.168.255.255 (mask range required to be between 16 and 28)
    • The subnet CIDR must be within or the same as the VPC CIDR.
      For example, if the IP range of a VPC is 192.168.0.0/16, then the IP ranges of subnets in it can be 192.168.0.0/16 or 192.168.0.0/17 for example.

Step 2. Create a subnet

You can create one or more subnets at a time.

  1. Log in to VPC Console.
  2. Click Subnet on the left sidebar to enter the management page.
  3. Select the region and VPC in which the subnet is to be created and click +New.
  4. Enter the subnet’s name, CIDR, availability zone, and associated route table.
    2
  5. (Optional) Click +Add a line to create multiple subnets at a time.
  6. Click Create.

Step 3. Create a route table and associate it with a subnet

You can create a custom route table, edit its routing policy, and associate it with a specified subnet. The route table associated with a subnet is used to specify outbound routes for the subnet.

  1. Log in to the VPC Console and select Route Tables on the left sidebar.
  2. Select the region and VPC at the top of the list and click +New.
  3. In the pop-up dialog box, enter the name, network, and new routing policy and click Create. Return to the route table list and you can see the created route table.
  4. Select Subnet on the left sidebar in the console, select the subnet to associate with the route table, and click Change route table in the Operation column to associate it.

Step 4. Add a CVM instance

  1. Log in to VPC Console.
  2. Click Subnet on the left sidebar to enter the management page.
  3. Click the “Add a CVM” icon in the row of the subnet where the CVM instance is to be added.
  4. Complete the purchase of the CVM instance as instructed by the page. For more information, please see Purchasing Channels in the CVM documentation.

Step 5. Add a TencentDB instance

New database

  1. Log in to the TencentDB for MySQL Console and click Create in the instance list to enter the purchase page.
  2. In the Network section on the purchase page, choose the VPC created previously and the corresponding subnet, and add the new TencentDB instance to the VPC.

Existing database

  1. In the instance list, click an instance name or Manage in the "Operation" column to enter the instance details page.
  2. In the Network section on the details page, switch to the corresponding VPC.