Support structured logging

[jcogilvie]

The node-driver-registrar container should support structured logging when given the --log-format-json flag, like for instance the secrets-store-csi-driver does.

A simple implementation can be found here: https://github.com/kubernetes-sigs/secrets-store-csi-driver/blob/main/cmd/secrets-store-csi-driver/main.go#L90-L94

[mauriciopoppe]

Thanks for the pointer, I was reading how the kubelet does it and it's very similar, on top of this change we need to update the log methods to the suffix S e.g. Infof -> InfoS, etc

References:

• https://kubernetes.io/blog/2020/09/04/kubernetes-1-19-introducing-structured-logs/
• kubelet
  • init https://github.com/kubernetes/component-base/blob/v0.25.3/logs/json/register/register.go#L26,
  • setup https://github.com/kubernetes/kubernetes/blob/v1.25.3/cmd/kubelet/app/options/options.go#L521 -> https://github.com/kubernetes/component-base/blob/v0.25.3/logs/api/v1/options.go#L185

[k8s-triage-robot]

The Kubernetes project currently lacks enough contributors to adequately respond to all PRs.

This bot triages PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the PR is closed

You can:

• Mark this PR as fresh with /remove-lifecycle stale
• Close this PR with /close
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/lifecycle stale

[jcogilvie]

/remove-lifecycle stale

[chenliu1993]

If that's ok and nobody it is working on this issue, I'd like to take this one

[chenliu1993]

If that's ok and nobody it is working on this issue, I'd like to take this one

Seems there is already a PR working on this issue, so I am not taking this one