spring-security-samples/servlet/spring-boot/java/saml2-login/src/main/resources/application.yml

spring:
  security:
    saml2:
      relyingparty:
        registration:
          one:
            identityprovider:
              metadata-uri: https://simplesaml-for-spring-saml.apps.pcfone.io/saml2/idp/metadata.php