SP Metadata generation about gosaml2 HOT 5 OPEN

	sp := &saml2.SAMLServiceProvider{
		IdentityProviderSSOURL:      metadata.IDPSSODescriptor.SingleSignOnServices[0].Location,
		IdentityProviderIssuer:      metadata.EntityID,
		ServiceProviderIssuer:       "http://localhost:8080",
		AssertionConsumerServiceURL: "http://localhost:8080/v1/_saml_callback",
		SignAuthnRequests:           true,
		AudienceURI:                 "http://localhost:8080",
		IDPCertificateStore:         &certStore,
		SPKeyStore:                  LoadKeyStore("myservice.cert", "myservice.key"),
	}

	meta, err := sp.Metadata()
	xmlMeta, err := xml.Marshal(meta)

	fmt.Println(string(xmlMeta[:]))

metadata, err := sp.Service.Metadata()
if err != nil {
  return nil, err
}

// Workaround as the lib is currently marshalling to nanoseconds which cannot be used with samltest
metadata.ValidUntil = time.Now().Add(time.Hour * 24 * 7).Round(time.Millisecond)

return xml.MarshalIndent(metadata, "", "  ")