Why Docker and Kubernetes Revolutionized Cloud Native Computing

In 2010 a small San Francisco startup called dotCloud began developing a PaaS based on LXC containers. The company later simplified the technology, naming it Docker, and open‑sourced it in 2013 under Solomon Hykes.

Docker provides a lightweight virtualization layer that creates images, containers and a repository. Images are immutable file systems that can be stored in Docker Hub and instantiated as containers, which run isolated processes with high resource efficiency compared to traditional virtual machines.

Unlike virtual machines, containers share the host kernel, start in seconds, and can run thousands per host, making them ideal for rapid deployment and scaling.

Kubernetes (K8s), announced by Google in 2014, is an open‑source container orchestration platform. A Kubernetes cluster consists of a master node (API server, scheduler, controller manager, etcd) and multiple worker nodes that run Docker containers, pods, and services.

The article also discusses how telecom core networks are moving from dedicated hardware to virtualized and container‑based implementations, enabling functions such as VoLTE to run as lightweight containers on standard servers, aligning with the broader shift toward cloud‑native micro‑service architectures.