}
		}
	}
	return w.Flush()
}

func valueOrNA(value string) string {
	if value == "" {
		return "NA"
	}
	return value
}

func certNotExpired(cert *Cert) bool {
	// case where cert state is in either Initializing or Unavailable state
	if cert.ExpirationTime == "" && cert.ValidFrom == "" {
		return false
	}

	CertChain []*Cert `json:"certChain"`
}

type Cert struct {
	Pem            string `json:"pem"`
	SerialNumber   string `json:"serialNumber"`
	ValidFrom      string `json:"validFrom"`
	ExpirationTime string `json:"expirationTime"`
}

type WorkloadState struct {
	State       string              `json:"state,omitempty"`
	Connections WorkloadConnections `json:"connections,omitempty"`

	// Expire the request five minutes from now.
	expirationTime := t.Add(time.Minute * 5)

	credStr := getCredentialString(accessKey, region, t)
	// Create a new post policy.
	policy := newPostPolicyBytesV4(credStr, bucketName, objectName, expirationTime)
	if contentLengthRange {
		policy = newPostPolicyBytesV4WithContentRange(credStr, bucketName, objectName, expirationTime)
	}
	return policy
}