apollo-configservice/src/main/java/com/ctrip/framework/apollo/configservice/controller/ConfigController.java/ConfigController/auditReleases
class ConfigController:  private void auditReleases(String appId, String cluster, String dataCenter, String clientIp,
                             List<Release> releases) {
    if (Strings.isNullOrEmpty(clientIp)) {
      //no need to audit instance config when there is no ip
      return;
    }
    for (Release release : releases) {
      instanceConfigAuditUtil.audit(appId, cluster, dataCenter, clientIp, release.getAppId(),
          release.getClusterName(),
          release.getNamespaceName(), release.getReleaseKey());
    }
  }