What is the reason behind Nginx ingress solely directing requests to pods within the same node in Kubernetes?

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There could be several reasons why Nginx ingress directs requests to pods within the same node in Kubernetes.

Firstly, directing traffic to pods within the same node can help reduce network latency and improve overall application performance. This is because requests do not have to travel across multiple nodes, which can cause delays and increase the likelihood of failures.

Secondly, directing traffic to pods within the same node can help improve network security. This is because pods within the same node are typically connected to the same internal network, which can be segregated from external networks to reduce the risk of unauthorized access.

Lastly, directing traffic to pods within the same node can help simplify networking configurations in Kubernetes. By keeping internal traffic to a single node, it can be easier to manage and troubleshoot network issues.

Overall, directing requests to pods within the same node can provide several benefits for application performance, security, and manageability within a Kubernetes cluster.