Prevent osquery instance restarts while instance is still launching #1778
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It is possible for e.g. control server flags to change while the osquery instance is still launching, which would prompt a call to
runner.Restart. Through testing, this can sometimes put the osquery runner in a bad state, where the instance isn't running and it doesn't attempt to launch a new one.To prevent this, we use the preexisting instance lock during initial instance launch, which will pause the
runner.Restartcall until the lock is free again.