use dm ldap in config file

etc/ds-web-service.conf.template

@@ -9,7 +9,7 @@ sslCaCertFile=DM_INSTALL_DIR/etc/ssl/cacert.pem
 principalRetriever=DbPrincipalRetriever()
 #principalRetriever=NoOpPrincipalRetriever()
 principalAuthenticator1=CryptedPasswordPrincipalAuthenticator()
-principalAuthenticator2=LdapPasswordPrincipalAuthenticator(serverUrl='ldaps://phoebusldap.aps.anl.gov:636', dnFormat='uid=%s,ou=people,o=aps.anl.gov,dc=aps,dc=anl,dc=gov')
+principalAuthenticator2=LdapPasswordPrincipalAuthenticator(serverUrl='ldaps://dmid-vm.xray.aps.anl.gov:636', dnFormat='uid=%s,ou=people,o=aps.anl.gov,dc=aps,dc=anl,dc=gov')
 
 [ExperimentManager]
 storageDirectory=DM_STORAGE_DIR