public CertificateSigningRequestSpecArgs build() {
            if ($.request == null) {
                throw new MissingRequiredPropertyException("CertificateSigningRequestSpecArgs", "request");
            }
            if ($.signerName == null) {
                throw new MissingRequiredPropertyException("CertificateSigningRequestSpecArgs", "signerName");
            }
            return $;
        }
@param username username contains the name of the user that created the CertificateSigningRequest. Populated by the API server on creation and immutable.

@return builder
sdk/java/src/main/java/com/pulumi/kubernetes/certificates/v1/inputs/CertificateSigningRequestSpecArgs.java