AS configuration defines the specifications of the ECS to be added to an AS group. The specifications include the ECS OS image and system disk size.

Log in to the eSurfing Cloud Console, switch to the node where you want to create AS, and select AS;
Switch to the AS Configuration page and click Create AS Configuration Items;
Enter AS configuration information, such as configuration name, ECS image and ECS type.

Configuration name: Create a name for an AS configuration item.
Configuration specification Choose Use Existing ECS Specification > Select an ECS to create a configuration item. ECS type, vCPU, memory, image, disk parameters and security group information are consistent with the specifications of the selected ECS by default. Select Use New Specifications , and configure the server type, vCPU, memory, image, disk parameters, and security group information.
EIP: An EIP refers to a public IP address bound to an associated ECS in a routing network of VPC. Using the EIP, the ECS provides access services externally. You can choose the following two modes according to the actual situation:
- Not used: An ECS without an EIP cannot access the Internet, and can only be used for deploying services or clusters in a private network.
- Auto allocation: An EIP with an exclusive bandwidth is automatically assigned to each ECS, and the bandwidth size is configurable.
Login mode: The public cloud provides two ECS authentication modes.Keys are used for authenticating ECSs. If you select this mode, create or import a key pair on the key page.

Note: If you select an existing key from the drop-down list, please ensure that you have obtained the file locally; otherwise, it will affect your normal login to the ECS.

The initial password of user root (for Linux) or user Administrator (for Windows) is used for ECS authentication. You can log in to an ECS using a username and a password.

Click OK . The system will prompt you that the AS configuration is created successfully, and returns to the AS Configuration tab on the AS page. You can view the newly created AS configuration on the AS Configuration tab.

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