OpenStack is a collection of programs that are used to create a cloud environment. The term “cloud computing” is used to refer to the decentralized calling up of programs and data. In a cloud, data is saved in several, sometimes physically distant locations. This requires an infrastructure that allows for decentralized access, in order to guarantee maximum security. Data which may be of a sensitive nature should not only be made highly available, but it should also be protected from unauthorized access and data loss.
IONOS Cloud Compute Engine
Medium-sized and large companies choose the cloud from Germany. IaaS and PaaS are services for champions.
SecureReliableFlexibleCloud solutions offer the unbeatable benefit of also functioning on connected devices with less powerful hardware components. The flexibly scalable computing power is in the cloud itself. All that is needed is a fast and stable internet connection, which makes setting up a complex network less expensive. There are no high purchase prices at all for the acquisition of hardware. The only costs incurred for working with a cloud solution are normally those related to the actual resources being used. It is also possible to operate a cloud environment on rented virtual servers, which also makes it interesting for small businesses and start-ups that cannot afford large IT expenses.
The OpenStack software pack includes all of the necessary components for creating a cloud environment. Despite being a relatively young project, it is still well-developed and secure. OpenStack was created in 2010 by the U.S. space agency NASA and the company Rackspace. NASA wanted software for its project-related work that would make it possible to create flexible and temporary computer networks. Since then, notable companies such as AT&T, RedHat, Canonical (the developer of Ubuntu), Intel, IBM, and Huawei have contributed to its development.
The software only runs on Linux operating systems, and was published with an Apache License. As such, the source code is openly available to anyone and the program can be used for free without any limitations. The 20th version of OpenStack was released in October 2019 under the name “Train.”
The OpenStack cloud is made up of several components, of which the most important are:
Nova is the computing component of the OpenStack cloud and the first one with which OpenStack was launched in 2010. To some extent, it is its backbone, and it is responsible for the most important task: managing the virtual computer. Nova has been developed to the point that it can manage entire groups of virtual computers. Individual computers are synaptically connected to one another, and the number of nodes varies. To create virtual machines, Nova primarily uses the license-free KVM hypervisors that are integrated into the Linux kernel, as well as XEN hypervisors that were created by the University of Cambridge.
Keystone is responsible for authentication and assigning permissions to users (identity). In cloud computing, not only individual PCs, but also entire networks are mapped. As such, user authentication and isolating partitions are very important. Keystone assigns individual access information to each of the cloud’s users (called “roles”) with very explicit rights.
Glance provides image services, meaning images of the data carriers of virtual machines. Glance can also secure and retrieve images. This makes it possible to create a sort of template library for required systems, which can then be generated in the network as often as desired. In addition, Glance ensures availability since the required machines can be reconstructed at any given time.
Neutron (formerly Quantum) provides the virtual network infrastructure of OpenStack. It can be used to divide sub-networks, manage IP addresses, and create virtual networks (VLANs) virtual networks (VLANs). Neutron also supports VPN (Virtual Private Networking). It enables data exchange among the components of OpenStack, for example, between individual virtual machines. Neutron also provides a firewall for the network.
Cinder is responsible for the provision of permanent memory in the form of block storage, like hard drives. Cinder does so through virtualization. As such, the volume can be modified accordingly (scalability). Cinder block memory functions like a physical hard drive on a computer. Saving data is simple since Cinder makes a user’s hard drives available to them through centralized APIs, and it also has a snapshot function.
Swift is the object store. It can integrate distributed memory in which seemingly randomly distributed data objects can be used on connected drives. Redundancy will be created if needed since the objects can be physically stored multiple times. In addition, storage created by Swift can also be used by Cinder or Glance. It is also possible to use distributed object storage that has been generated by Ceph or GlusterFS as a substructure.
Horizon acts as the dashboard. In other words, Horizon is the graphic user interface through which the components in the OpenStack network can be managed. User management can also be managed in the process. The design and functionality of Horizon are customizable.
The OpenStack cloud is the software-based replica of an incredibly complex IT infrastructure. The modules that must normally exist physically are each virtually generated by one of the aforementioned components. Required memory is created by Swift, and then optionally made available as block storage through Cinder. The functionality of an individual server and computer within the network is generated and managed by Nova. The pool of available virtual machines is provided by Glance.
Neutron handles networking, as well as protection through a firewall and monitoring. Keystone manages the authentication and authorization of users. Once the system has been built, it can be comfortably administered through Horizon. If more storage space or performance is needed for a short period, both of these factors can be adjusted correspondingly.
The OpenStack cloud offers the following advantages:
Unfortunately, there are also certain disadvantages to using OpenStack:
Due to the absence of a license, using OpenStack is extremely inexpensive. Once the system has been set up, it can be easily managed. The use of virtual servers that include hosting services is already possible through a small cloud solution that costs $10 to $20 per month. That means OpenStack can be used as a platform for private cloud applications, for example, a bit like a Wiki. It can even be used to implement sideline projects or even start-up ideas, such as online shops.
OpenStack is an ideal option for SMBs to get started in the cloud-computing world, as well as for the transfer of data and applications. For example, it also offers the possibility of creating a public cloud. Rights management within the OpenStack cloud, in particular, offers a wide range of possibilities for optimally managing the collaboration of various user profiles.
Large companies can transfer parts of their network infrastructure, such as particularly sensitive data or programs, and also use OpenStack within the framework of a multi-cloud approach or use it as a component of a hybrid Cloud. The failure of application servers is lower as a result since servers can be replicated as often as desired. Data is made redundant in any case in the system, so that the loss of data through hardware damage is virtually impossible.
Anyone who would prefer not to use OpenStack can replicate the required services using virtual servers or online storage, for example. Using solutions such as Owncloud or Nextcloud is also possible.
Other similar solutions are:
In addition, more and more companies are using the convenient option of using a service provider to set up and manage a cloud (managed cloud).
If setting up a cloud using OpenStack does not seem like a trustworthy option, a enterprise cloud from IONOS is also an option. We guarantee maximum flexibility and an infrastructure that is perfectly suited to your needs.
No matter what you decide, there are several good arguments for getting into cloud computing. When it comes to efficiency and flexibility, cloud computing is absolutely unbeatable. There is also the environmental factor to cloud computing that makes it favorable since the purchase of unnecessary hardware can be avoided or done without altogether.
But the most important factor is definitely the security of your data. It takes a lot of trust to place your own data or that of your clients into the hands of external service providers. As such, the effort of creating your own cloud with an established product like OpenStack can pay off very quickly.
For many, the cloud is a place where private documents, music, pictures, or videos can be stored and exchanged online. Understanding the different technological aspects of these services, however, proves to be a cloudy venture for many. Did you know, for example, that, in addition to many other things, online stores and websites can also be hosted in the cloud?
Outsourcing IT resources has long since become the standard in many companies. The decisive reason for this is the simple scalability of rented cloud resources, which offers a great solution to the fast-moving business world. However, managing this kind of infrastructure involves a lot of work. How the IaC-Tool Terraform can help reduce this effort is explained in this article.
Many companies have complex server infrastructures that are often managed by several administrators. Not only do the operating systems, but also software packages have to be installed, configured and maintained on a continuous basis. SaltStack allows all resources to be managed from a central computer. We show you what SaltStack can do and what makes it so special.
Released in 2018, Podman is increasingly seen as an interesting alternative to Docker. Compared to the forerunner of the container management sector, Podman focuses more on flexibility when combining and configuring containers, allowing management with common user rights. Read on for extensive information and a Podman tutorial for beginners.
OpenShift vs. OpenStack: even though their names sound similar, the two are very different. While OpenStack is used to create virtualized cloud infrastructures based on distributed hardware, OpenShift is all about application containers. Read more about the similarities and differences between these tools and how you can successfully combine them.
Provide powerful and reliable service to your clients with a web hosting package from IONOS.
View packages
