feat: add flow to initialize CNS from CNI

[rbtr]

Reason for Change:

• Updates the CNS pod statemap to be able to use the new interface ID being passed from CNI instead of keying on Kubernetes namespace/name
• Adds a flow where CNS can rebuild its internal state from CNI instead of from the Kubernetes API
• Adds a config flag and a CNI version check, making the above two changes explicitly opt-in

Issue Fixed:

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests

Notes:

[matmerr]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[neaggarwMS]

func TestReconcileNCWithExistingState(t *testing.T) {

Can we update this test to new struct (pass InterfaceId/ContainerId and validate that as well) #Closed

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Refers to: cns/restserver/internalapi_test.go:220 in 6f27e8a. [](commit_id = 6f27e8a, deletion_comment = False)

[neaggarwMS]

  logger.Errorf("[releaseIPConfig] SetIPConfigAsAvailable failed to release, no allocation found for pod [%+v]", podInfo)

It is okay to get idempotent release calls, can you update this message for "Ignore release as no allocations found for this pod" #Closed

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Refers to: cns/restserver/ipam.go:397 in 6f27e8a. [](commit_id = 6f27e8a, deletion_comment = False)

[neaggarwMS]

var (

We should either run all these test with old and new contract or move them to new (where you also pass interfaceId and infracontainer in IPConfigRequest" #Closed

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Refers to: cns/restserver/ipam_test.go:16 in 6f27e8a. [](commit_id = 6f27e8a, deletion_comment = False)

[neaggarwMS]

🕐

revoking review

[neaggarwMS]

🕐

[neaggarwMS]