What is Kubernetes and what are its benefits?

What is Kubernetes and what are its benefits?

Originating from Greek, Kubernetes, means helmsman or pilot. It is an open-source container orchestration platform that automates many manual processes related to deploying, managing, and scaling containerized applications. The abbreviation for Kubernetes is "K8s". Software can be automatically deployed, run, maintained, and scaled in container-based environments and applications. K8s was originally developed by Google. The first version was released in 2015. Google has now donated Kubernetes to the Cloud Native Computing Foundation (CNCF). It is currently responsible for further developing the software and is involved with other projects in the cloud computing environment. K8s is available on GitHub and is written in the Go programming language. The software is available under the Apache License 2.0. Kubernetes is software that transforms a collection of physical or virtual hosts (servers) into a platform with the following features:

• It provides computing, storage, and networking resources by hosting containerized workloads, and

• It automatically manages a large number of containerized applications - keeping them healthy and available by adapting to changes and challenges.

What Are the Benefits of Kubernetes?


Kubernetes provides a high degree of automation, enabling better management and execution of complex processes. Above all, it makes them more reliable. This is particularly useful when companies need more flexibility in their infrastructure for the rapid deployment of IT services. The system can help companies reduce their infrastructure costs by providing a container architecture for a portfolio of large enterprise applications. However, it is not only the reduction of infrastructure costs that makes the system so attractive for companies. Kubernetes allows companies to save on human resources. The platform helps IT teams manage extremely complex applications clustered in a large number of containers with exceptional efficiency. The system optimizes the maintenance of container-based applications: Kubernetes takes over service discovery, for example, using smart interface management to help containers communicate with each other.

How Does Kubernetes Work?


Kubernetes automates the management of containers. The smallest component in Kubernetes is known as a pod. A pod is a group of containers designed to be managed on a node in a VM' where all "group members" can communicate seamlessly with each other. Kubernetes provides various tools used to organize containers. The platform simplifies scaling applications on demand, managing dynamic changes in existing container applications, and optimizing the underlying hardware. Since application components can be restarted as needed and moved between systems, Kubernetes is extensible and fault-tolerant. Therefore, the platform supports the selection of application frameworks, languages, monitoring, and logging tools. With Kubernetes, IT departments can:

• Organize containers across multiple hosts,

• Utilize necessary hardware resources for more efficient execution of enterprise applications,

• Control and automate the provisioning and updating of applications,

• Mount storage to run stateful applications and add storage capacity

• Scale application containers and resources.


What Are the Types of Kubernetes Services?

A service in Kubernetes is an abstraction that describes a collection of conceptual partitions where an application runs and an access policy for such partitions. If a pod needs to connect to another pod, it must first determine the IP address. Kubernetes services also provide a way to locate specific partitions. Pod IP addresses are abstract in the Kubernetes network model; if a partition fails or is destroyed, the new partition will almost certainly receive a new IP address. Pod IP addresses are abstract in the Kubernetes network model; if a partition fails or is destroyed, the new partition will almost certainly receive a new IP address. Kubernetes services are divided into four basic categories:

ClusterIP: The ClusterIP service in Kubernetes is actually the standard service type. It provides a service within the Kubernetes cluster that can be managed by other Kubernetes applications without exposing it externally.

NodePort: Each node has an open port called NodePort. Even if your application runs on a different node, Kubernetes directs traffic from the NodePort directly to the service.

LoadBalancer: LoadBalancer is a popular way to expose a Kubernetes service to the outside world via the internet. LoadBalancer can be used similarly to ClusterIP and NodePort. If you choose LoadBalancer as the service category, it approaches the cloud provider of the cluster and creates a load balancer.

ExternalName: ExternalName services can redirect traffic to an external service, as they do not have selectors or fixed ports or endpoints. This form associates the service with the elements of an external namespace. It completes this by returning the record value of a CNAME.

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