Could you explain what kube-proxy in Kubernetes is and what role it performs?

kube-proxy is a component of Kubernetes responsible for network access to services within the cluster. It runs on each node and provides traffic routing to pods, implementing load balancing and proxying.

Main functions of kube-proxy:

• Managing iptables or IPVS rules to redirect requests to the appropriate pods.
• Providing access to services via their virtual IP (ClusterIP).
• Load balancing among pods that serve a single service.

Example: when you access a service inside the cluster via its IP, kube-proxy redirects the request to one of the pods registered with that service, ensuring transparent access and load distribution.