ldap, saml and hue

LDAP AND SAMLIN HUE

Abraham Elmahrek

WHATIS HUE?

WEB INTERFACE FOR MAKING HADOOP EASIER TO USE Suite of apps for each Hadoop component, like Hive, Pig, Impala, Oozie, Solr, Sqoop2, HBase...

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Hadoop Web Server You and eventhat friend

that uses IE9 ;)

ECOSYSTEM

PIGJO

B BROWSER

JOB DESIG

NER

OOZIE

HIVE IMPA

LA

METASTO

RE BROWSERSEARCH

HBASE BROWSER

SQOOP

ZOOKEEPERUSER ADMIN

DB QUERY

SPARK

HOME ...

GUI DESIG

N

FILE BROWSER

USER

USER WORKFL

OWS

USER

YARN JobTracker Oozie

Pig

HDFS

HiveServer2

Hive Metastore

Cloudera Impala

Solr

HBase

Sqoop2

Zookeeper

LDAP SAML

Hue Plugins

APPS

TARGETOF HUE

GETTING STARTED WITH HADOOP BEING PRODUCTIVE EXPLORING DIFFERENT ANGLES OF THE PLATFORM !

LET ANY USER FOCUS ON BIG DATA PROCESSING

THE CORETEAM PLAYERS

team.gethue.com

ABRAHAM ELMAHREK

ROMAIN RIGAUX

ENRICO BERTI

CHANG BEER

HISTORY

HUE 1

Desktop-like in a browser, did its job but pretty slow, memory leaks and not very IE friendly but definitely advanced for its time (2009-2010).

HISTORY

HUE 2

The first flat structure port, with Twitter Bootstrap all over the place.

HISTORY

HUE 2.5

New apps, improved the UX adding new nice functionalities like autocomplete and drag & drop.

HISTORY

HUE 3 ALPHA

Proposed design, didn’t make it.

HISTORY

HUE 3

Transition to the new UI, major improvements and new apps.

HISTORY

HUE 3.5+

Where we are now, new UI, several new apps, the most user friendly features to date.

LDAP

INTRO

1.Hierarchical entries 2.Entries contain attributes 3.Attributes available are defined

by object classes

TWO KINDS OF PROBLEMS

DIRECT BIND

Authenticate against a directory service using simple direct bind.

SEARCH

Authenticate, import, synchronize, etc. against an LDAP service by searching for a particular entry

EXISTING FEATURES LOGIN

Authenticate against a directory service using simple direct bind or search for the distinguished name to bind with.

USERADMIN

Add new users and groups; Synchronize existing users and groups; Support posix accounts, posix groups, DN import, general LDAP search, etc.

CLI

Command line interface for synchronizing LDAP users and groups.

SUBGROUPS

Import subgroups and members of subgroups when synchronizing a group. Subgroup defined as a subordinate group.

LOWERCASE

Force usernames to lower case.

CONFIGURABLE

User filter, user name attribute, group filter, group name attribute

NEW FEATURESMULTIDOMAIN

Be able to choose which domain to authenticate against.

NESTED GROUPS

Be able to import nested groups and members of nested groups.

EXAMPLE CONFIGURATIONS - BASIC[[ldap]] [[[ldap_servers]]] [[[[mycompany]]]] base_dn="DC=hue-search,DC=ent,DC=cloudera,DC=com" ldap_url=ldap://hue-search.ent.cloudera.com bind_dn="CN=Directory Manager" bind_password=cloudera !

[[[[[users]]]]] user_filter=“objectclass=Person" user_name_attr=uid !

[[[[[groups]]]]] group_filter="objectclass=groupOfNames"

EXAMPLE CONFIGURATIONS - LDAPS[[ldap]] [[[ldap_servers]]] [[[[mycompany]]]] base_dn="DC=hue-search,DC=ent,DC=cloudera,DC=com" ldap_url=ldaps://hue-search.ent.cloudera.com bind_dn="CN=Directory Manager" bind_password=cloudera ldap_cert=/etc/certs/root-ca-cert.pem !

[[[[[users]]]]] user_filter="objectclass=Person" user_name_attr=uid !

[[[[[groups]]]]] group_filter="objectclass=groupOfNames"

EXAMPLE CONFIGURATIONS - NESTED GROUPS[[ldap]] [[[ldap_servers]]] [[[[mycompany]]]] base_dn="DC=hue-search,DC=ent,DC=cloudera,DC=com" ldap_url=ldap://hue-search.ent.cloudera.com bind_dn="CN=Directory Manager" bind_password=cloudera subgroups=nested !

[[[[[users]]]]] user_filter="objectclass=Person" user_name_attr=uid !

[[[[[groups]]]]] group_filter="objectclass=groupOfNames"

EXAMPLE CONFIGURATIONS - DIRECT BIND[[ldap]] [[[ldap_servers]]] [[[[mycompany]]]] base_dn="DC=hue-search,DC=ent,DC=cloudera,DC=com" ldap_url=ldap://hue-search.ent.cloudera.com bind_dn="CN=Directory Manager" bind_password=cloudera search_bind_authentication=false ldap_username_pattern=“uid=<username>,ou=People,dc=hue-search,dc=ent,dc=cloudera,dc=com” ! [[[[[users]]]]] user_filter=“objectclass=Person” user_name_attr=uid ! [[[[[groups]]]]] group_filter=“objectclass=groupOfNames”

EXAMPLE CONFIGURATIONS - ACTIVE DIRECTORY[[ldap]] [[[ldap_servers]]] [[[[mycompany]]]] base_dn="DC=hue-search,DC=ent,DC=cloudera,DC=com" ldap_url=ldap://hue-search.ent.cloudera.com bind_dn="CN=Directory Manager" bind_password=cloudera search_bind_authentication=false nt_domain=cloudera.com ! [[[[[users]]]]] user_filter=“objectclass=Person” user_name_attr=uid ! [[[[[groups]]]]] group_filter=“objectclass=groupOfNames”

EXAMPLE CONFIGURATIONS - ADVANCED[[ldap]] subgroups=nested ignore_username_case=true force_username_lowercase=true ! [[[ldap_servers]]] [[[[mycompany]]]] base_dn="DC=hue-search,DC=ent,DC=cloudera,DC=com" ldap_url=ldap://hue-search.ent.cloudera.com bind_dn="CN=Directory Manager" bind_password=cloudera ! [[[[[users]]]]] user_filter="objectclass=Person" user_name_attr=samaccountname ! [[[[[groups]]]]] group_filter="objectclass=groupOfNames"

SAML

INTRO

1.Service provider (SP) 2. Identity provider (IdP) 3.Signed/encrypted requests and

responses 4. IdP Identity source can be LDAP 5.Secure SSO as defined by the

OASIS group standards

THE CHALLENGESLIBRARIES

Python libraries have bad licenses, are poorly written, and rely on system libraries not found in primary repositories.COMPLEX CONFIGURATION

Service Provider and Identity Provider definition is obscure. Protocol is configurable. Every IdP is slightly different.TESTABILITY

Opensource IdPs are incomplete. We use Shibboleth.

THE BREAK DOWNHACKING

https://github.com/abec/djangosaml2 https://github.com/abec/pysaml2

PACKAGING/CONFIGURATION

Do not package SAML libraries. Instead, require users to install manually. Configure via Hue.

TESTABILITY

We need help!

[libsaml] xmlsec_binary=/opt/local/bin/xmlsec1 entity_id="http://192.168.92.1:8080/saml2/metadata/" metadata_file=/Users/abe/Desktop/idp-metadata.xml key_file=/Users/abe/Desktop/idp.key cert_file=/Users/abe/Desktop/idp.crt

DEPENDENCIESXMLSEC1

Requires xmlsec1 (a nonstandard system package)

DJANGOSAML2

Django application for pysaml2

PYSAML2

Python binding with two implementations: 0.4.x line and 1.x line. 1.x line has had major updates and there is a 2.x line now.

diff --git a/src/saml2/client_base.py b/src/saml2/client_base.pyindex f1aadf3..9206a95 100644--- a/src/saml2/client_base.py+++ b/src/saml2/client_base.py@@ -124,11 +124,7 @@ class Base(Entity): else: setattr(self, foo, False) - # extra randomness- self.allow_unsolicited = self.config.getattr("allow_unsolicited", "sp")- self.artifact2response = {}- self.logout_requests_signed = False # # Private methods@@ -533,8 +529,8 @@ class Base(Entity): if resp is None: return None elif isinstance(resp, AuthnResponse):- #self.users.add_information_about_person(resp.session_info())- #logger.info("--- ADDED person info ----")+ self.users.add_information_about_person(resp.session_info())+ logger.info("--- ADDED person info ----") pass else: logger.error("Response type not supported: %s" % (

INSTALLATIONyum install xmlsec1!

build/env/bin/pip install -e git+https://github.com/abec/pysaml2@HEAD#egg=pysaml2!

build/env/bin/pip install -e git+https://github.com/abec/djangosaml2@HEAD#egg=djangosaml2

USERNAME SOURCEATTRIBUTES

Fetch username for SAML from attributes returned by the IdP

NAMEID

Use transient or persistent Name ID to be username for SAML

[libsaml] … username_source=nameid …

IT’S COMPLICATED

https://wiki.cloudera.com/display/engineering/Hue+and+SAML

FRESH IDEASREPLACE XMLSEC1

Python libraries have bad licenses, are poorly written, and rely on system libraries not found in primary repositories.REPLACE PYSAML2

Pysaml2 doesn’t use intelligent libraries, uses xmlsec1, code base is messy.

SINGLE LOGOUT

Some IdPs provides single logout. Needs to be tested.

DOCUMENTATION

More documentation around all the various IdPs and how to support them is necessary.

TEST ON SITEMINDER

Many customers seem to be using SiteMinder and every IdP is slightly different.

SYSTEM LEVEL TESTS

More system level testing as customers start to use SAML.

DEMO TIME

LINKS

DEMO

http://demo.gethue.com

TWITTER

@gethue

USER GROUP

hue-user@

WEBSITE

http://gethue.com

LEARN

http://learn.gethue.com

!

THANK YOUwww.gethue.com