A container has its own filesystem, memory, CPU, etc, but they are decoupled from the infrastructure below, making them portable across different OSs and cloud environments. Containers as the SolutionĬontainers are similar to VMs, but since they have less strict isolation properties, they’re more lightweight. Besides the possibilities of inefficiencies when creating the VMs images, virtual machines couple development and operations concerns, so also might cause inconsistencies across development, testing, and production environments. VMs weren’t the perfect solution, though. Virtualization allows applications to be isolated from one another, providing a level of security that wasn’t possible before. Then came virtualization, which allows organizations to run many virtual machines (VMs) on a single physical server. A solution would be to have different servers for each application, but this is unscalable and quite expensive. A resource-hungry application could make the others underperform. It wasn’t possible to define boundaries on resource usage between applications, causing allocation problems. In the “traditional deployment” era, organizations would run their apps on real, physical servers, which caused problems. I hope you will understand the basic concept of Kubernetes, we will share more articles like this.An Intro to Kubernetes Understanding the Problemīefore understanding what Kubernetes is and why it’s useful, we must go back in time a little bit. In this article, we have covered the very basic introduction of Kubernetes. Hide infrastructure complexity in the cluster.Kubernetes are most demanding technology among various company because of the following benefits: Why Does Every Company Demand Kubernetes? They are installed on the containers which are surrounded by logical boundaries of POD. In Kubernetes, these components are not directly installed on the OS. In docker swarm, the components such as API server, controller, scheduler, etc are installed directly on the OS of a master node.Ģ. It was firstly developed by Google named as borg then, Google donated borg to Linux foundation.Ģ. Kubernetes is an open-source container orchestration tool that can be fully customizable. It is not open-source, that is, we are unable to customize it.ġ. Docker swarm is created and managed by the Docker community. The above diagram shows the difference between Docker swarm and Kubernetes.ġ. Difference Between Docker Swarm and Kubernetes? Nowadays, companies use the concept of the container where they are deploying their application in multiple containers and all the containers are managed by orchestration tools such as Kubernetes, docker swarm, etc. These all component works as orchestration in an on-premises deployment. To manage servers, some components are used such as load balancer, firewall, storage, etc. Now, there is a need to manage those multiple servers which help to run their application. To handle this problem, they used to configure multiple servers and host their application on those servers.
The application is not responding after full utilization of the available resources of the server. The main problem arises when the number of visitors to this application increases as it requires more memory and storage to handle such huge traffic. They have installed one operating system on the server and configure one IP to that server and bind this IP with the domain name via DNS, in this way their application becomes live to everyone.
There was some configuration of that server hardware like 32 GB RAM, 500 HDD, 8 core, etc. If any company wants to run the application like Netflix on-premises, then they had buy hardware to deploy their application. Let’s recall the previous days when we have no container technology and cloud architecture. Let’s talk about the example where we are not using the concept of containerization. Kubernetes also manages our application in the same way as politics manage the population. The way by which politics manages a huge population. Politicians created different policies, rules, and regulations to manage populations.
Let’s take a real-world example of our country, we have a lot of peoples living within your country and to manage such a huge population, “Politics” plays an important role. “ Orchestration” means to manage anything in a hidden way, so Kubernetes is the hidden way of managing your application. Kubernetes Is an Open-Source Container Orchestration System or Tool Today, I will clear all the confusion about Kubernetes. So, without wasting any time let’s start your journey to learn Kubernetes. We will cover each topic in this article. If you are interested to know the answer to all these questions, then follow this article with me. Why does Every Company demand Kubernetes? We will discuss the following topics in this article:ģ. Today in this article, we are going to discuss Kubernetes introduction.