SecurityConfig.java

@Configuration
public class SecurityConfig {
	
	@Bean
	public PasswordEncoder passwordEncoder() {
		return  PasswordEncoderFactories.createDelegatingPasswordEncoder();
	}
	
	@Bean
	public UserDetailsService users(PasswordEncoder encoder) {
		UserBuilder users = User.builder().passwordEncoder(encoder::encode);
		
		UserDetails admin = users.username("user").password("password").roles("USER").build();
		UserDetails user = users.username("admin").password("password").roles("USER", "ADMIN").build();
		return new InMemoryUserDetailsManager(user, admin);
	}
}