Getting Started with OpenStack 1

Introduced

Rackspace & NASA
A combination of software open source projects
Complex installation Configuration
System management platform for Infrastructure resources (network, compute, storage)
Individual wells vs Water plants

Components & Principles

Horizon-UI Module

Cloud Administrator
Normal User

Keystone--Identity Service module * Control core

Concept:

User: Users, on behalf of the person or program that can be accessed through Keystone, user authentication information (e.g., password, API key, etc.)

Tenant: Tenant, he is a collection of resources that can be accessed in each service

role: Roles, roles represents a set of resource permissions that a group of users can access

Service: Services, such as Nova,glance,swift services, are registered on Keystone

Endpoint: An access point exposed by a service. If you need access to a service, you must know his Endpoint.

Token

: Access to resource tokens, analogous to keys, with time limit

services provided by Keystone:

Identity Service authentication Credentials

Token

Service verifies and manages tokens used to authenticate the requested identity

The

Catalog Service provides a service registry for endpoint Discovery

policy rule-based authentication engine

Nova-COMPUTE Services OpenStack Instance Lifecycle Management Compute Resource Management provides rest-style API components out of the way:

nova-api #api接口

nova-scheduler #调度中枢

nova-compute #计算模组

UR-> Nova-a Pi-> Nova-scheduler-> Nova-compute

Glance--Mirror service

Swift--Object storage service One of the first two services of OpenStack high-availability distributed object Storage Service Locator: Account----container---object can be used via HTTP (S), Object API and S3 Interface Access cinder--block storage service manages all block storage devices for VM services neutron--network Services provides virtual network functionality in a cloud computing environment three modes: Flat mode flat DHCP mode VLAN mode

Access Control Flow

*quantum is the predecessor of Neutron.

From for notes (Wiz)

Getting Started with OpenStack 1