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Container provisioning and management have been a strain on DevOps and software engineers. Organizations are leveraging Kubernetes to improve and streamline their operations. But, what is it, and how does it work?
Kubernetes, also known as K8s, is an open-source container orchestration platform for automating deployment, scaling, and management of containerized applications. It can be used on-premises, hybrid, or public cloud infrastructures. This provides a robust framework for orchestrating containers, allowing developers to focus on building and shipping applications, rather than worrying about the underlying infrastructure.
Starting as a Google open-sourced project, Kubernetes’ primary focus is optimization. It automates many DevOps manual processes and simplifies the work of software developers. This includes automatically restarting failed containers, removing unresponsive containers, and continuously checking container health.
Kubernetes offers a wide range of benefits to improve application deployment and management. Let’s delve into a few key benefits:
Scalability and Flexibility
Kubernetes allows applications to scale seamlessly based on demand. It can automatically scale the number of application instances up or down, ensuring optimal performance and resource utilization.
Portability and Vendor Neutrality
Kubernetes provides a vendor-agnostic platform, allowing applications to run consistently across various cloud providers and on-premises environments. This portability eliminates vendor lock-in, giving businesses the freedom to choose the best infrastructure for their needs.
Enhanced Resource Utilization
Through efficient load balancing and resource allocation, Kubernetes optimizes the utilization of underlying hardware resources. It ensures that applications run without contention, enhancing overall system performance.
High Availability and Fault Tolerance
K8s enables the deployment of applications across multiple nodes, ensuring high availability. If a node fails, the system automatically redirects traffic and workloads to healthy nodes, maintaining uninterrupted service—a fundamental requirement for mission-critical applications.
Before we fully grasp the workings of Kubernetes, it is imperative to familiarize ourselves with a few fundamental terms. These terms serve as building blocks for a comprehensive understanding of the subject at hand. Let us delve into them before proceeding further.
At its core, Kubernetes operates by managing clusters of nodes by providing a framework to run distributed systems. Here’s a simplified overview of how it works with some tips: