✨Enabling Metrics for vn-agent

[srirammageswaran8]

What this PR does / why we need it:

The pr enabled metrics server for vn-agent instrumenting all the API Calls to super API Server or Kubelet and counting all the API Calls with respect to host, tenantName, tenantNamespace, action and responseCode.

Which issue(s) this PR fixes Fixes #251

[linux-foundation-easycla[bot]]

The committers are authorized under a signed CLA.

• :white_check_mark: Sriram Mageswaran (51ed1e8e1db982485d081167b6f9d9b68675097a, cc3a20be41ce349e33c915e2c65fe4ddaddfc62e)

[k8s-ci-robot]

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[k8s-ci-robot]

Hi @srirammageswaran8. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[christopherhein]

/ok-to-test

[srirammageswaran8]

/easycla

[Fei-Guo]

Thanks for working on this. /lgtm /approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Fei-Guo, srirammageswaran8

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