support JSON log format for liveness-probe

[aramase]

• Provide a flag to enable JSON log formatting.

We do this today for CSI driver implementations but the same can't be configured for liveness-probe. This can be done by adding log-format-json=true flag to the liveness-probe and setting the log format based on that.

[fejta-bot]

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/lifecycle stale

[aramase]

/remove-lifecycle stale

[fejta-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

Send feedback to sig-contributor-experience at kubernetes/community.
/lifecycle stale

[fejta-bot]

Stale issues rot after 30d of inactivity.
Mark the issue as fresh with /remove-lifecycle rotten.
Rotten issues close after an additional 30d of inactivity.

If this issue is safe to close now please do so with /close.

Send feedback to sig-contributor-experience at kubernetes/community.
/lifecycle rotten

[aramase]

/remove-lifecycle rotten