protected void createRoleAuthorizations() throws SQLException {
    addRoleAuthorization(AMBARI_VIEW_STATUS_INFO.getId(), "View status information", Collections.singleton("AMBARI.ADMINISTRATOR:AMBARI"));
    LOG.info("Added new role authorization {}", AMBARI_VIEW_STATUS_INFO.getId());
    addRoleAuthorization(CLUSTER_MANAGE_WIDGETS.getId(), "Manage widgets", Sets.newHashSet( "AMBARI.ADMINISTRATOR:AMBARI", "CLUSTER.ADMINISTRATOR:CLUSTER", "CLUSTER.OPERATOR:CLUSTER"));
    LOG.info("Added new role authorization {}", CLUSTER_MANAGE_WIDGETS.getId());
  }
The {@link UpgradeCatalog272} upgrades Ambari from 2.7.1 to 2.7.2.
ambari-server/src/main/java/org/apache/ambari/server/upgrade/UpgradeCatalog272.java