What is the default value of initialDelaySeconds

Given the pace at which the project changes, I wanted to make sure the code actually confirms this.

Found a test in the public Kubernetes repo that verifies the default settings for probes:

    expectedProbe := v1.Probe{
        InitialDelaySeconds: 0,
        TimeoutSeconds:      1,
        PeriodSeconds:       10,
        SuccessThreshold:    1,
        FailureThreshold:    3,
    }

See method TestSetDefaultProbe in

https://github.com/kubernetes/kubernetes/blob/master/pkg/apis/core/v1/defaults_test.go

It seems that the default value of 0 is missing from the documentation.

The health or readiness check algorithm works like this:

1. Wait for initialDelaySeconds
2. Perform readiness check and wait timeoutSeconds for a timeout
3. If the number of continued successes is greater than successThreshold return success
   If the number of continued failures is greater than failureThreshold return failure
   otherwise wait periodSeconds and start a new readiness check