Kubernetes is a container orchestration platform for deploying, scaling, and managing containerized applications. Containers package an application and its dependencies. js application, the Node runtime, and all required libraries. You can run this container on any machine and it works the same. The problem is managing many containers across many machines. Kubernetes automates this.
" It finds machines with available resources, pulls the container image, and runs it. If a container crashes, Kubernetes restarts it. If a machine fails, Kubernetes reschedules the containers elsewhere. If traffic spikes, Kubernetes automatically scales up, more containers. If traffic drops, it scales down.
Load balancing, rolling updates, rolling back to previous versions, Kubernetes handles all of it. Kubernetes is complex. Learning it takes months. But it's the industry standard for deploying applications at scale. Amazon, Google, Netflix, everyone uses Kubernetes or systems inspired by it. Kubernetes is what makes cloud-native applications possible.
You can write applications that assume they'll be deployed with load balancing, auto-scaling, and automatic recovery. The platform handles these concerns.