set externalTrafficPolicy for Pylon and SSH service

[Rui Gao (hippogr)]

The default value of externalTrafficPolicy setting of load balancer for Pylon and SSH is Cluster, which means that the requests will send to either paimaster node or sysnodepool nodes. Since both of the services are running only on paimaster node, it may bring performance issues. In this PR, we set the value of externalTrafficPolicy to Local so the requests will be sent to paimaster directly.

[Copilot]

Pull Request Overview

This PR optimizes the network routing for Pylon and SSH services by configuring externalTrafficPolicy: Local on their LoadBalancer services. Since these services run exclusively on the paimaster node, this change prevents unnecessary routing through worker nodes, improving performance and reducing latency.

Key changes:

• Added externalTrafficPolicy: Local to SSH proxy LoadBalancer service configuration
• Added externalTrafficPolicy: Local to Pylon LoadBalancer service configuration

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/ssh-proxy/deploy/ssh-proxy.yaml.template	Added externalTrafficPolicy configuration to optimize SSH service routing
src/pylon/deploy/pylon-service.yaml	Added externalTrafficPolicy configuration to optimize Pylon service routing

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