We are going to use Spring's default LDAP server to store our users, and then use this as a user store against which we can authenticate the users in our application. The LDAP configuration is done in our application.yml file, as follows:

spring:
 ldap:
   # Embedded Spring LDAP
   embedded:
     base-dn: dc=packtpub,dc=com
     credential:
       username: uid=admin
       password: secret
     ldif: classpath:ldap/ldapschema.ldif
     port: 8389
     validation:
       enabled: false
 mvc:
   view:
     prefix: /WEB-INF/views/
     suffix: .jsp

The ldap section is self-explanatory—we are setting up the embedded LDAP server with various parameters.