@AfterClass
  public static void tearDown() {
    if (kdc != null) {
      kdc.stop();
    }

    FileUtil.fullyDelete(new File(HTU.getDataTestDir().toString()));
  }
Get the SSL configuration. This method is copied from KeyStoreTestUtil#getSslConfig() in
Hadoop.
@return {@link Configuration} instance with ssl configs loaded.
@param conf to pull client/server SSL settings filename from
hbase-http/src/test/java/org/apache/hadoop/hbase/http/log/TestLogLevel.java