Before You Start

Endpoints

An endpoint is the request address for calling an API. Endpoints vary depending on services and regions. For the Config endpoint, see Regions and Endpoints.

Concepts

• Organization

  An organization is an entity that you can create with the Organizations service to centrally manage multiple accounts. You can also use service control policies to control resource access for your organization. This helps you better meet security and compliance requirements.

• Account

  An account is created upon successful registration. An account has full access permissions for all of its cloud services and resources. It can be used to reset user passwords and grant user permissions. The account is a payment entity, which should not be used directly to perform routine management. For security purposes, create Identity and Access Management (IAM) users and grant them permissions for routine management.

• User

  An IAM user is created by an account through IAM to use cloud services. Each IAM user has its own identity credentials (password and access keys).

  The account name, username, and password will be required for API authentication.

• Region

  Regions are divided based on geographical location and network latency. Public services, such as Elastic Cloud Server (ECS), Elastic Volume Service (EVS), Object Storage Service (OBS), Virtual Private Cloud (VPC), Elastic IP (EIP), and Image Management Service (IMS), are shared within the same region. Regions are classified into universal regions and dedicated regions. A universal region provides universal cloud services for common tenants. A dedicated region provides specific services for specific tenants.

  For details, see Region and AZ.

• AZ

  An AZ comprises of one or more physical data centers equipped with independent ventilation, fire suppression, moisture-proof, and power facilities. Computing, network, storage, and other resources in an AZ are logically divided into multiple clusters. AZs within a region are interconnected using high-speed optical fibers to allow you to build cross-AZ, high-availability systems.

• Project

  There is a default project autamatically configured for each region. Default projects physically isolate resources (including compute, storage, and network resources) across regions. If you grant users permissions by project, the users can access all resources in the corresponding projects. If you need more refined access control, create subprojects under a default project and add resources to subprojects. Then you can assign users the permissions required to access only the resources in the specific subprojects.

  Figure 1 Project-based resource isolation
  
• Enterprise Project

  An enterprise project is more flexible than an IAM project. Enterprise projects isolate resources logically. You can include resources from different regions to an enterprise project and transfer resources between enterprise projects.

  For details about enterprise projects and about how to obtain enterprise project IDs, see Enterprise Management User Guide.

Querying Data by Page

Some Config APIs support pagination query if you add limit and marker to the request URL. To get the next page of results, you need to set the marker to the value of marker obtained from your last response.