From Docker Shim to Containerd: The Evolution of Kubernetes Container Runtimes
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Kubernetes, the powerful orchestration platform that has become the backbone of modern cloud-native applications, initially relied heavily on Docker as its default container runtime. Docker Shim, a bridge component, was introduced to allow Kubernetes to interact seamlessly with Docker containers. Docker Shim acted as a translation layer, enabling Kubernetes to communicate with Docker’s container management API and run Docker containers within the Kubernetes ecosystem.
For years, this combination worked well, providing a stable and widely adopted solution for container orchestration. However, as Kubernetes evolved and container runtimes diversified, Docker Shim’s limitations began to surface, prompting the Kubernetes community to explore alternative solutions.
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