openstack

Provides a web-based self-service portal to interact wi th underlying
launching an instance,assigning ip addresses and configuring access controls

Compute nova Manages the lifecycle of compute instances in an openstack environment
Responsibilities include spawning,scheduling and decommissioning of virtual machines on demand;
virtual machines on demand
manages the lifecycle of compute instance in an openstack
responsibilityes include spawning,scheduling and decommissioning of virtual machines on demand;
Networking neutron enables network-connectivity-as-a-service for other openstack services
such as openstack compute
provides an API for users to define networks and the attachments into them
has a pluggable architecture that supports many popular networking vendors and technologies;
pluggable architecture that supports many popular networking vendors and technologies;
stores and retrieves arbitrary
stores and retrieves arbitrary unstructured data objects via a RESTful http base
highly 高故障  容忍
highly fault tolerant fault tolerant data replication and scale-out architecture
fault tolerant data replication and scale-out architecture
implementation is not like a file server with mountable directories
in this case
it writes objects and files to multiple drives
writes objects and files to multiple drives
ensuring the data is replicated across a server cluster;
provides persistent block storae to running instances
provides persistent block storage to running instances
its pluggable driver architecture facilitates the
storage shared services  higher-level services;
identity service provides an authentication and authorization service for other openstack services
provides a catalog of endpoints for all openstack services;
image service glance
stores and retrieves virtual machine disk images
stores and retrieves virtual machines disk images
storages

compute make use of thhis deuing instance provisioning;
Telemetry ceilometer
monitor and meters the openstack cloud for billing benchmarking scalability
and statistical purposes;
Monitor and meters the openstack cloud for billing benchmarking scalability and statistical purposes;
aafter becoming familiar with basic installation configuration operation and troubleshooting of these
you should consider the following steps toward deployment using a production architecture

determine and implement the necessary