Virtual vpn in the cloud

4.2.3
 
OpenStack CLI 
Openstack is an open-source cloud computing software platform utilized by users to 
deploy it is an Infrastructre-as-a-service.

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Few of its distinctive features include: 
•
Provision of horizontal scalability to deploy and launch millions of VMs and billion 
of stored objects over the distributed architecture [32]. 
•
Compatibility and flexibility in supporting most virtualization solutions such as 
KVM, Xen etc [32]. 
Following are the main components of OpenStack which provide the under mentioned 
services [33]: 
•
Nova
– It is also known as the OpenStack compute service, which is responsible for 
the provision of virtual servers based on the demand and also facilitates cloud 
resource management through its APIs. The API simplifies the orchestration, 
launching and controlling of VMs. 
•
Glance
– It is an OpenStack image service facilitating a lookup and recovering of 
virtual instances images. The API provides services for registering and discovering 
VM images along with managing server image libraries. 
•
Neutron
– It is an OpenStack networking service. Neutron service allows users to 
create and manage various frameworks such as Intrusion detection systems, VPNs 
and so on and provides potential for managing DHCP, static IPs and VLANs. 
•
Swift
– It is an OpenStack object storage service facilitating users to store and 
retrieve documents.
•
Cinder
– It is an OpenStack block storage service which when used along with swift 
can be used to back up large amount of VM volumes. 
•
Keystone
– It is an OpenStack service that facilitated token and authentication, 
catalog and policy management. It is also responsible for user authentication and 
granting authentication tokens.
FIWARE provides advanced OpenStack-based cloud hosting capabilitites and a rich library 
of GE offering a number of added-value functions offered as a 
‘Service’ 
[30]
. 
Each 
OpenStack project has a command-line client to run simple commands for create and 
manage cloud resources and automated tasks through simple scripts. Detailed procedure for 
launching VMs is .