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FusionCloud 6.3.0 Solution Description 05

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Implementation Principles

Implementation Principles

Architecture

Figure 14-4 shows the overall architecture of the ELB. Users can use the standard OpenStack API to develop the ELB.

Figure 14-4 ELB architecture
Table 14-1 Component details

Component Type

Component Name

Details

Console layer

LVS

Provides level-1 load balancing.

Nginx

Provides level-2 load balancing.

Network Console (ELB)

Enables you to manage all ELB-related resources.

API/Service layer

HAProxy

Provides load balancing capabilities for Combined API.

Network Service (ELB)

Provides interfaces for Network Console to manage ELB resources.

Common components

API Gateway

Third-party applications call ECS APIs through API Gateway.

SDR

Provides the resource metering and billing function.

DNS/NTP

Provides domain name resolution and time synchronization.

TaskCenter

Displays the task status.

Resource pools

Glance

Provides the Image Management Service (IMS).

Nova

Manages the life cycle of computing instances in the FusionSphere OpenStack environment, for example, creating instances in batches, and scheduling or stopping instances on demand.

Cinder

Provides persistent block storage for running instances. Its pluggable drives facilitate block storage creation and management.

Neutron

Provides APIs for network connectivity and addressing.

Management domain

IAM

Provides Identity and Access Management (IAM).

eSight

Provides performance monitoring and alarm generation.

Service OM

Provides O&M management.

Metering

Provides the resource metering and billing function using SDR.

Service Flow

Figure 14-5 shows the service flow of ELB.

Figure 14-5 ELB service flow

The service flow contains the following tasks:

  1. The VDC administrator or operator applies for a load balancer on the ELB console.
  2. ELB sends the request to Neutron through the API.
  3. Neutron creates ELB instances using resources in the network resource pool.
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Updated: 2019-04-23

Document ID: EDOC1100026685

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