What is Kubernetes?

An orchestration to automate your SDLC

What is Kubernetes?

Kubernetes is an open-source container orchestration system and a powerful tool for automated deployment, scaling, and management related to containerized applications. It provides a portable, extensible, and scalable platform that can be used to manage containerized workloads on a variety of infrastructures including the cloud. Features such as declarative configuration, autoscaling, and health checks make it much more powerful to manage containerized applications.

What are the benefits of using Kubernetes in the cloud?

There are numerous featured benefits of using Kubernetes for your cloud. These may include built-in commands for deploying applications, rolling out changes to applications, monitoring capabilities, and many more! We have tried to list a few benefits of using Kubernetes in a cloud-focused environment.
  • Increased visibility and control: Kubernetes provides organizations with a central dashboard that gives them visibility into all of their applications and resources.
  • Improved security: By utilizing role-based access control (RBAC), users can significantly enhance the level of security in their applications.
  • Open source and community support: Being an open source with a large active community, a wide-spread support network is available all the time.
  • Portability and flexibility: Kubernetes can be used with a variety of cloud providers which allows users to choose a cloud provider that best suits their needs.
  • Self-healing capability: Kubernetes can automatically restart or replace the container depending on the type of error, without any runtime error/breakdown. It makes sure that application is always available in spite of any infrastructure failure

Components of Kubernetes

Kubernetes components work together and provide a powerful flexible platform for managing container-based applications. By understanding the different components, organizations can better understand how Kubernetes works and how to use it to manage applications more effectively. The 4 main basic components of Kubernetes are Nodes, Clusters, Controllers, and Services. These can be explained as follows:

Nodes

A node is nothing but a physical or virtual which is a fundamental part of running a Kubernetes. These are responsible to run pods (the smallest unit of deployment in Kubernetes). Pods are nothing but groups of one or more containers scheduled to run on the same node.

Cluster

A cluster is a group of nodes that are governed by Kubernetes. A cluster can have any number of nodes and can spread across multiple physical or virtual machines.

Controllers

Controllers play a major role in managing the lifecycle of Kubernetes objects. For example, the Deployment controller is responsible for managing the lifecycle of the Deployment object, which is used to deploy and scale pods. Likewise, the different types of controllers in Kubernetes are responsible for managing different types of objects.

Services

Services are the major constraint that is used to expose pods to the outside world. Services play a major role in Kubernetes networking, as they allow to make pods accessible to other pods and external users. Other uses are balancing traffic across pods, and providing a DNS name for pods.

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Why use Kubernetes?

As mentioned earlier, Kubernetes is an open-source project. It means organizations are allowed to run containerized applications without any need to change any operational tooling. As Kubernetes is managed by a large community of volunteers, it is always improving. Listed below, are a few points to consider using Kubernetes.

  • Run applications at scale: With Kubernetes, ability to auto-scale the application up or down based on the usage and demand, run your applications at scale. It also benefits and optimizes costs related to hosting.
  • Move applications seamlessly: Kubernetes helps you move applications seamlessly within different environments, for example from development to production. This also reduces the risk of errors and increases the overall agility of the entire SDLC.
  • New functionality: Using Kubernetes various tools, enables organizations to add new functionalities and help better manage or extend the platform.
  • Flexible environment: Kubernetes is highly agile and can run on different environments like on-prem, cloud, or hybrid. This gives organizations enough flexibility to run applications in environments, they find most suitable.

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