}
	rootCertExpiryTimestamp.Record(rootCertExpiry)

	rootCertPem, err := util.ParsePemEncodedCertificate(keyCertBundle.GetRootCertPem())
	if err != nil {
		serverCaLog.Errorf("failed to parse the root cert: %v", err)
	}
	rootCertExpirySeconds.ValueFrom(func() float64 { return time.Until(rootCertPem.NotAfter).Seconds() })

	if len(keyCertBundle.GetCertChainPem()) == 0 {
		return
	}

	if len(trustBundlePEM) > 0 {
		rootCertPEM = concatCerts(trustBundlePEM)
	} else {
		// If CA Client has no explicit mechanism to retrieve CA root, infer it from the root of the certChain
		rootCertPEM = []byte(certChainPEM[len(certChainPEM)-1])
	}

	return &security.SecretItem{
		CertificateChain: certChain,