[kubernetes] setup networkPolicy for pcm #998
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Pull request overview
This PR adds a NetworkPolicy for the PCM (Performance Counter Monitor) service to support Kubernetes environments with default deny network policies. The changes make the network configuration more explicit and maintainable by using named ports.
- Updates health check probes to reference ports by name instead of number
- Adds a NetworkPolicy resource allowing ingress traffic to the metrics endpoint
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Signed-off-by: Pat Riehecky <riehecky@fnal.gov>
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This sets a networkPolicy for pcm. It is useful for environments where a default deny network policy is created. It further documents the behavior by using named ports within the pod.
This policy is easy to modify for folks who want to limit access to only the prometheus server.