OpenStack

The OpenStack Project is a platform for developing, deploying and hosting cloud computing solutions using open source software. The OpenStack project is a suite of open source software, services and standards, primarily designed for IaaS cloud offerings and provides 5 different solution stacks including OpenStack compute, object storage, image service, identity and dashboard.

The OpenStack cloud platform is not a single thing, but an amalgam of software modules that serve different purposes. OpenStack components are shaped by open source contributions from the developer community, and adopters can implement some or all of these components.

Nova

It is the primary computing engine behind OpenStack. It is used for deploying and managing large numbers of virtual machines and other instances to handle computing tasks.

Swift

It’s a storage system for objects and files. Rather than the traditional idea of a referring to files by their location on a disk drive, developers can instead refer to a unique identifier referring to the file or piece of information and let OpenStack decide where to store this information. This makes scaling easy, as developers don’t have the worry about the capacity on a single system behind the software. It also allows the system, rather than the developer, to worry about how best to make sure that data is backed up in case of the failure of a machine or network connection.

Cinder

It is a block storage component, which is more analogous to the traditional notion of a computer being able to access specific locations on a disk drive. This more traditional way of accessing files might be important in scenarios in which data access speed is the most important consideration.

Neutron

Provides the networking capability for OpenStack. It helps to ensure that each of the components of an OpenStack deployment can communicate with one another quickly and efficiently.

Horizon

The dashboard behind OpenStack. It is the only graphical interface to OpenStack, so for users wanting to give OpenStack a try, this may be the first component they actually “see.” Developers can access all of the components of OpenStack individually through an application programming interface (API), but the dashboard provides system administrators a look at what is going on in the cloud, and to manage it as needed.

Keystone

Provides identity services for OpenStack. It is essentially a central list of all of the users of the OpenStack cloud, mapped against all of the services provided by the cloud, which they have permission to use. It provides multiple means of access, meaning developers can easily map their existing user access methods against Keystone.

Glance

Provides image services to OpenStack. In this case, “images” refers to images (or virtual copies) of hard disks. Glance allows these images to be used as templates when deploying new virtual machine instances.

Ceilometer

Its provides telemetry services, which allow the cloud to provide billing services to individual users of the cloud. It also keeps a verifiable count of each user’s system usage of each of the various components of an OpenStack cloud. Think metering and usage reporting.

Heat

The orchestration component of OpenStack, which allows developers to store the requirements of a cloud application in a file that defines what resources are necessary for that application. In this way, it helps to manage the infrastructure needed for a cloud service to run.

Enables rapid innovation

OpenStack’s orchestration and self-service capabilities offers developers and IT staff with faster and better access to IT resources. Because developers can provision machines rapidly and on-demand, they can significantly reduce development and testing periods and have more freedom to experiment with new ideas.

Cuts down time-to-market

Faster deployment of IT resources also means end users and business units no longer have to wait days or weeks to start using the network services and applications they need. In turn, they would be more capable of rolling out and completing projects earlier than before.

Boosts scalability and resource utilization

Although not as scalable as public clouds, OpenStack private clouds still offer a significant degree of scalability. You can still spin up and spin down servers on-demand. So, for example, if one department encounters a surge in demand for computing resources, IT resources may be temporarily redirected from other departments to the one that currently needs it the most.In addition, OpenStack also provides the following advantages over public clouds and proprietary cloud solutions

Eases regulatory compliance

Because OpenStack enables the construction of private, on-premise clouds, it can help in regulatory compliance endeavors. If your cloud is in your own data center, you’ll have more control of access privileges, security measures, and security policies. You can personally take charge of ensuring that policies for securing personal data, financial data, and other confidential and regulated information are actually enforced and not just printed on a piece of paper.

Devoid of vendor lock-in

One major problem with using a proprietary solution is vendor lock-in. If you’re not happy with the vendor’s services or the vendor closes shop, you cannot easily hop on to the next. OpenStack supports a variety of proprietary technologies and can operate in a smorgasbord of hypervisor and bare metal environments. Its ability to work with commodity hardware gives you more flexibility in choosing solutions based on a wider range of costs and competencies.

Strong security

One of the main reasons why OpenStack is so popular in the world of cloud computing is it has outstanding security features that keep you secure all the time.

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