Add readiness probe #1047
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Add readiness probe #1047
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Problem: The NKG Pod would report Ready as soon as it started, which could lead to traffic being sent too soon before nginx was actually configured. Solution: Add a readiness probe that will report Ready once the controller has written its first config to nginx (or has nothing to do on startup). Also changed the metrics "disable" helm flag to "enable" to be consistent and easier to read.
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Problem: The NKG Pod would report Ready as soon as it started, which could lead to traffic being sent too soon before nginx was actually configured.
Solution: Add a readiness probe that will report Ready once the controller has written its first config to nginx (or has nothing to do on startup).
Also changed the metrics "disable" helm flag to "enable" to be consistent and easier to read. (This is a pre-1.0 breaking change).
Testing: Manually verified that an upgrade has no downtime for connections.
Closes #542