ITGSS Certified DevOps Engineer Practice Test

Which component manages interaction between Kubernetes and cloud providers?

1. kube-proxy

2. kubelet

3. cloud-controller-manager

4. etcd

The correct answer is: cloud-controller-manager

The cloud-controller-manager is responsible for managing the interaction between Kubernetes and cloud providers. This component abstracts the specifics of the cloud environment, allowing Kubernetes to leverage cloud services and resources effectively. It manages tasks such as load balancing, keeping track of the instances that should be running in the cloud, and coordinating with the cloud provider's API to manage resources. By segregating cloud-specific control logic, the cloud-controller-manager provides a clear interface for Kubernetes to interact with various cloud environments. This modular architecture allows for easier integration with different cloud vendors, enabling Kubernetes to operate flexibly across various platforms. In contrast, kube-proxy is primarily responsible for network routing and load balancing for services within the Kubernetes cluster. The kubelet is an agent that runs on nodes and manages the lifecycle of containers, ensuring they are running as expected. Etcd is a distributed key-value store that holds all the cluster data but does not handle any interactions with cloud providers. Each of these components plays a critical role in the Kubernetes architecture, but the cloud-controller-manager is specifically tasked with bridging Kubernetes and cloud functionalities.