Examples of org.apache.hadoop.minikdc.MiniKdc

org.apache.hadoop.minikdc.MiniKdc
Mini KDC based on Apache Directory Server that can be embedded in testcases or used from command line as a standalone KDC.
From within testcases:
MiniKdc sets 2 System properties when started and un-sets them when stopped:
- java.security.krb5.conf: set to the MiniKDC real/host/port
- sun.security.krb5.debug: set to the debug value provided in the configuration
Because of this, multiple MiniKdc instances cannot be started in parallel. For example, running testcases in parallel that start a KDC each. To accomplish this a single MiniKdc should be used for all testcases running in parallel.
MiniKdc default configuration values are:
- org.name=EXAMPLE (used to create the REALM)
- org.domain=COM (used to create the REALM)
- kdc.bind.address=localhost
- kdc.port=0 (ephemeral port)
- instance=DefaultKrbServer
- max.ticket.lifetime=86400000 (1 day)
- max.renewable.lifetime=604800000 (7 days)
- transport=TCP
- debug=false
The generated krb5.conf forces TCP connections.

  }


  @BeforeClass
  public static void setUp() {
    try {
      testMiniKDC = new MiniKdc(MiniKdc.createConf(), testRootDir);
      setupKDC();
    } catch (Exception e) {
      assertTrue("Couldn't create MiniKDC", false);
    }
  }

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      "Hadoop-YARN-Auth-Delegation-Token";


  @BeforeClass
  public static void setUp() {
    try {
      testMiniKDC = new MiniKdc(MiniKdc.createConf(), testRootDir);
      setupKDC();
      setupAndStartRM();
    } catch (Exception e) {
      assertTrue("Couldn't create MiniKDC", false);
    }

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  @BeforeClass
  public static void setupKDC() throws Exception {
    testRootDir = new File("target",
      TestRMWebServicesDelegationTokens.class.getName() + "-root");
    testMiniKDC = new MiniKdc(MiniKdc.createConf(), testRootDir);
    testMiniKDC.start();
    testMiniKDC.createPrincipal(httpSpnegoKeytabFile, "HTTP/localhost",
      "client", "client2", "client3");
  }

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        // re-authenticating in cases where it otherwise wouldn't.  One of the sections on this page briefly mentions it:
        // http://docs.oracle.com/javase/7/docs/technotes/guides/security/jgss/tutorials/Troubleshooting.html
        setSystemProperty("javax.security.auth.useSubjectCredsOnly", "false");


        // Setup KDC and principal
        kdc = new MiniKdc(MiniKdc.createConf(), new File(getTestCaseDir()));
        kdc.start();
        keytabFile = new File(getTestCaseDir(), "test.keytab");
        String serverPrincipal = "zookeeper/127.0.0.1";
        kdc.createPrincipal(keytabFile, getPrincipal(), serverPrincipal);

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     */
    assertNotNull("java.security.krb5.conf is needed for hadoop security",
        System.getProperty("java.security.krb5.conf"));
    System.clearProperty("java.security.krb5.conf");


    miniKdc = new MiniKdc(kdcConf, new File(workDir, "miniKdc"));
    miniKdc.start();


    // create default users
    addUserPrincipal(getServicePrincipalForUser(HIVE_SERVICE_PRINCIPAL));
    addUserPrincipal(HIVE_TEST_USER_1);

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