What is Kubernetes? | How does it work?
The popularity of Kubernetes continues to increase over time. If you are a developer or are into DevOps, it is essential to have an idea of what this is all about.
Then you can start using Kubernetes and develop Cloud native applications. Continue to read this article, and we will share more information on what Kubernetes and what Kubernetes is used for.
What is Kubernetes and how it works?
As the first thing, let’s learn what Kubernetes is all about. Kubernetes is an open-source compartment coordination stage that mechanizes containerized applications’ sending, scaling, and the executives. It was initially evolved by Google and is currently kept up with by the Cloud Native Computing Foundation (CNCF). Read the other article to know more about what is cloud native.
What is Kubernetes used for? Kubernetes is designed to manage containerized applications across a distributed infrastructure.
It works by creating a cluster of nodes, physical or virtual machines, that are connected to form a single system. Each node runs a container runtime such as Docker, and Kubernetes manages the scheduling and scaling of containers across the nodes.
At the heart of Kubernetes is the control plane, which is responsible for managing the state of the cluster and making decisions about deploying and managing applications.
The control plane consists of several components, including the API server, kube-scheduler, kube-controller-manager, and cloud-controller-manager.
These components work together to monitor the state of the cluster, schedule applications to run on available resources, and manage the replication and scaling of containers.
There are numerous benefits of Kubernetes that you can experience. For example, it provides a set of abstractions, or APIs, that allow developers and operators to interact with the cluster and deploy and manage applications.
These APIs include objects such as pods, deployments, services, and namespaces, which allow developers to define how their applications should be deployed and managed in the cluster.
What is Kubernetes used for
Now you have a basic idea of what does Kubernetes do. Let’s deep dive and learn more about what is the use of Kubernetes. From this, you can get a better idea of what does Kubernetes mean.
Kubernetes is primarily used for container orchestration, deployment, scaling, and management of containerized applications. Kubernetes provides a powerful platform for automating many of the tasks involved in running distributed applications, and it has become the de facto standard for container orchestration in the industry.
Kubernetes is a powerful platform for managing containerized applications. It has become an essential tool for organizations that want to deploy, scale, and manage modern applications in a distributed environment.
Hence, you may consider using it for numerous cloud application development requirements without keeping a doubt in mind.
Kubernetes vs Docker
Now you know what Kubernetes mean and what is the use of Kubernetes. As the next thing, you will need to learn more about what are Docker and Kubernetes.
Kubernetes and Docker are not comparable technologies, as they serve different purposes. Docker is a platform for building, packaging, and running containerized applications, while Kubernetes is a container orchestration platform that automates containerized applications’ deployment, scaling, and management. Continue to read, and we will share some key differences between Kubernetes and Docker.
Docker is a platform for building and running containers, while Kubernetes is a platform for managing containers at scale. Docker provides a low-level abstraction for containerization, while Kubernetes provides higher-level abstractions for managing containers and their dependencies.
Docker also provides features such as image management, container networking, and storage management, while Kubernetes provides load balancing, scaling, and service discovery.
When comparing Docker and Kubernetes, it is also important to be mindful of the level of complexity. Docker is generally easier to use and learn than Kubernetes, which has a steeper learning curve and requires more configuration.
Last but not least, let’s take a quick look at the use cases you can find between Kubernetes and Docker. Docker is ideal for building and running individual containers on a single host or in a small cluster, while Kubernetes is designed for managing containerized applications across a distributed infrastructure.
Overall, Docker and Kubernetes are complementary technologies often used in modern application development and deployment. Docker provides a powerful platform for building and running containerized applications, while Kubernetes provides a powerful platform for managing those applications at scale.
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Benefits of Kubernetes
Kubernetes provides several benefits for organizations deploying and managing containerized applications in a distributed environment. Here are some of the key benefits of Kubernetes:
– Kubernetes provides a high level of scalability
Kubernetes can automatically scale applications up or down based on demand, ensuring they can handle traffic spikes and remain performant. When developing applications, scalability is one of the biggest requirements to be mindful of. Since Kubernetes can help you ensure scalability, you don’t need to worry too much about scaling your applications.
– High availability
Kubernetes provides self-healing and automatic failover features, which help ensure that applications remain available even during node failures or other issues.
This will help you with developing mission-critical applications. You can keep peace of mind because the application continues to run on the Cloud. This will help you with minimizing the overall downtime of an application.
– Kubernetes is highly flexible
Kubernetes is designed to work across multiple cloud providers and on-premises infrastructure, making it an ideal choice for organizations deploying applications in a hybrid or multi-cloud environment.
This is one of the biggest reasons development teams worldwide are using Kubernetes for their development and deployment of cloud applications.
– Kubernetes is portable
Kubernetes provides a consistent platform for deploying and managing containerized applications, making moving applications between different environments and infrastructures easy. Due to the same reason, it has become quite a convenient task to migrate legacy apps into Kubernetes.
– Kubernetes enhances efficiency
Kubernetes automates many tasks in managing containerized applications, reducing the need for manual intervention and improving efficiency. This will help the development teams to go ahead with getting the most out of automation.
– Kubernetes enables powerful service discovery
Kubernetes provides a powerful service discovery mechanism that allows applications to discover and communicate with other services in the cluster, making building and deploying complex applications more accessible. This will eventually help you develop more complex applications with the help of Kubernetes.
– Kubernetes can support rollouts and rollbacks
Kubernetes makes it easy to roll out new application versions and back to previous versions if necessary without downtime or disruption. If your deployment has an issue, you may roll back the code and keep the production environment intact.
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As you can see, Kubernetes simplifies the deployment and management of containerized applications by providing a powerful platform for automating many of the tasks involved in running distributed applications.
Use the knowledge that you gained out of this article on what does Kubernetes do in order to use it and start building cloud-native applications.