Showing posts with label OpenStack Crash Course. Show all posts
Showing posts with label OpenStack Crash Course. Show all posts

OpenStack Crash Course - Neutron

Openstack Neutron is the networking service.  It is similar to AWS VPC or Azure VNET.
  • Manual and automatic management of networks and IP addresses.
  • Distinct networking models for different applications and user groups.
  • Flat networks (VLAN’s) for separating servers and traffic.
  • Supports both Static IP addresses and DHCP.
  • Floating IP addresses for dynamic rerouting to resources on the network.
  • Software-defined networking (SDN), OpenFlow, for multi-tenancy and scalability.
  • Management of intrusion detection systems (IDS), load balancing, firewalls, VPN’s, etc.

OpenStack Crash Course - Glance

Glance is image service of OpenStack. It’s similar to AWS AMI and Azure VM Images.
  • OpenStack Image Service for discovery, registration, and delivery of services for disk and server images
  • Template-building from stored images
  • Storage and cataloging of unlimited backups
  • REST interface for querying disk image information
  • Streaming of images to servers
  • VMware integration, with vMotion Dynamic Resource Scheduling (DRS) and live migration of running virtual machines
  • All OpenStack OS images built on virtual machines
  • Maintenance of image metadata
  • Creation, deletion, sharing, and duplification of images

OpenStack Crash Course - Nova

Openstack Nova is the equivalent of AWS EC2 instances or Azure VMs.
  • It’s an Infrastructure as a Service (IaaS) offering.
  • Provides management and automation of pools of Virtual Machines
  • Bare metal and high-performance computing (HPC) configurations
  • It supports KVM, VMware, and Xen hypervisor virtualization
  • Hyper-V and LXC containerization
  • Python-based with various external libraries: Eventlet for concurrent programming, Kombu for AMQP communication, SQLAlchemy for database access, etc.
  • Designed to scale horizontally on standard hardware with no proprietary hardware or software requirements
  • Inter operable with legacy systems