org.apache.storm.security.auth.kerberos

Class AutoTGT

java.lang.Object

org.apache.storm.security.auth.kerberos.AutoTGT

All Implemented Interfaces:

IMetricsRegistrant, IAutoCredentials, ICredentialsRenewer

public class AutoTGT
extends Object
implements IAutoCredentials, ICredentialsRenewer, IMetricsRegistrant

Automatically take a user’s TGT, and push it, and renew it in Nimbus.

Field Summary

Fields

Modifier and Type	Field and Description
protected static AtomicReference<KerberosTicket>	kerbTicket

Constructor Summary

Constructors

Constructor and Description
AutoTGT()

Method Summary

Modifier and Type	Method and Description
static void	clearCredentials(Subject subject, KerberosTicket tgt)
static KerberosTicket	getTGT(Map<String,String> credentials)
static void	main(String[] args)
void	populateCredentials(Map<String,String> credentials) Called to populate the credentials on the client side.
void	populateSubject(Subject subject, Map<String,String> credentials) Called to initially populate the subject on the worker side with credentials passed in.
void	prepare(Map<String,Object> conf) Called when initializing the service.
void	registerMetrics(TopologyContext topoContext, Map<String,Object> topoConf)
void	renew(Map<String,String> credentials, Map<String,Object> topologyConf, String topologyOwnerPrincipal) Renew any credentials that need to be renewed.
static void	saveTGT(KerberosTicket tgt, Map<String,String> credentials)
void	updateSubject(Subject subject, Map<String,String> credentials) Called to update the subject on the worker side when new credentials are recieved.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

kerbTicket

protected static final AtomicReference<KerberosTicket> kerbTicket

Constructor Detail

AutoTGT

public AutoTGT()

Method Detail

getTGT

public static KerberosTicket getTGT(Map<String,String> credentials)

saveTGT

public static void saveTGT(KerberosTicket tgt,
                           Map<String,String> credentials)

clearCredentials

public static void clearCredentials(Subject subject,
                                    KerberosTicket tgt)

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception

prepare

public void prepare(Map<String,Object> conf)

Description copied from interface: ICredentialsRenewer

Called when initializing the service.

Specified by:

prepare in interface IAutoCredentials

Specified by:

prepare in interface ICredentialsRenewer

Parameters:

conf - the storm cluster configuration.

populateCredentials

public void populateCredentials(Map<String,String> credentials)

Description copied from interface: IAutoCredentials

Called to populate the credentials on the client side.

Specified by:

populateCredentials in interface IAutoCredentials

Parameters:

credentials - the credentials to be populated.

updateSubject

public void updateSubject(Subject subject,
                          Map<String,String> credentials)

Description copied from interface: IAutoCredentials

Called to update the subject on the worker side when new credentials are recieved. This means that populateSubject has already been called on this subject.

Specified by:

updateSubject in interface IAutoCredentials

Parameters:

subject - the subject to optionally put credentials in.

credentials - the credentials to be used.

populateSubject

public void populateSubject(Subject subject,
                            Map<String,String> credentials)

Description copied from interface: IAutoCredentials

Called to initially populate the subject on the worker side with credentials passed in.

Specified by:

populateSubject in interface IAutoCredentials

Parameters:

subject - the subject to optionally put credentials in.

credentials - the credentials to be used.

renew

public void renew(Map<String,String> credentials,
                  Map<String,Object> topologyConf,
                  String topologyOwnerPrincipal)

Description copied from interface: ICredentialsRenewer

Renew any credentials that need to be renewed. (Update the credentials if needed)

Specified by:

renew in interface ICredentialsRenewer

Parameters:

credentials - the credentials that may have something to renew.

topologyConf - topology configuration.

topologyOwnerPrincipal - the full principal name of the owner of the topology

registerMetrics

public void registerMetrics(TopologyContext topoContext,
                            Map<String,Object> topoConf)

Specified by:

registerMetrics in interface IMetricsRegistrant