Document VPC CNI helper metrics

[rittneje]

The documentation for the VPC CNI helper lists the names of the metrics that it will report, but does not explain what they mean, or how to use them to monitor the health of the cluster. Please add more detail on these points. https://github.com/aws/amazon-vpc-cni-k8s/blob/master/cmd/cni-metrics-helper/README.md

[jdn5126]

Thanks for filing @rittneje , we are happy to take PRs if you have the bandwidth

[rittneje]

@jdn5126 Is there any existing reference that explains them?

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days

[rittneje]

not stale

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days

[rittneje]

not stale

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days

[rittneje]

not stale

[sidewinder12s]

@jdn5126 Is there any existing reference that explains them?

Just the code implementing them: https://github.com/aws/amazon-vpc-cni-k8s/blob/master/utils/prometheusmetrics/prometheusmetrics.go#L31

[jdn5126]

Closing following the merge of #2786

[github-actions]

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