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TriHUG October: Apache Ranger
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Biren Saini talked to us about Apache Ranger on 10/27/15
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TriHUG October: Apache Ranger
1.
Hadoop Data Security with Apache
Ranger Biren Saini © Hortonworks Inc. 2011 – 2015. All Rights Reserved
2.
Page 2 ©
Hortonworks Inc. 2015 About me • Biren Saini • Senior Solutions Engineer • Governance SME Lead • Overall 15 years of technology experience @ Hortonworks}
3.
Page 3 ©
Hortonworks Inc. 2015 Agenda • Hadoop Security Overview • Apache Ranger – Introduction – Architecture – Sample Flow – Best Practices – Ranger Stacks – Demo
4.
Page 4 ©
Hortonworks Inc. 2015 Overview of Security in Hadoop
5.
Page 5 ©
Hortonworks Inc. 2015 5 Pillars of Security • Authentication • Authorization • Audit • Encryption • Centralized Administration
6.
Page 6 ©
Hortonworks Inc. 2015 Security Tools in Hadoop world • Kerberos (authentication) • Apache Knox (authentication) • AD/LDAP (authentication) • Apache Ranger (authorization, audit, kms) • HDFS TDE (data encryption) • Wire Encryption (data protection)
7.
Page 7 ©
Hortonworks Inc. 2015 HDFS Typical Flow – SQL Access through Beeline client HiveServer 2 A B C Beeline Client
8.
Page 8 ©
Hortonworks Inc. 2015 HDFS Typical Flow – Authenticate through Kerberos HiveServer 2 A B C KDC Login into Hive using AD password Hive gets Namenode (NN) service ticket Hive creates map reduce using NN ST Client gets service ticket for Hive Beeline Client Active Directory
9.
Page 9 ©
Hortonworks Inc. 2015 HDFS Typical Flow – Add Authorization through Apache Ranger HiveServer 2 A B C KDC Hive gets Namenode (NN) service ticket Column level access control, auditing Ranger Beeline Client File level access control Active Directory Import users/groups from LDAP Login into Hive using AD password
10.
Page 10 ©
Hortonworks Inc. 2015 HDFS Typical Flow – Firewall, Route through Knox Gateway HiveServer 2 A B C KDC Use Hive ST, submit query Hive gets Namenode (NN) service ticket Hive creates map reduce using NN ST Ranger Knox gets service ticket for Hive Knox runs as proxy user using Hive ST Original request w/user id/password Client gets query result Beeline Client Apache Knox Active Directory
11.
Page 11 ©
Hortonworks Inc. 2015 HDFS Typical Flow – Add Wire and File Encryption HiveServer 2 A B C KDC Use Hive ST, submit query Hive gets Namenode (NN) service ticket Hive creates map reduce using NN ST Ranger Knox gets service ticket for Hive Knox runs as proxy user using Hive ST Original request w/user id/password Client gets query result SSL Beeline Client SSL SASL SSL SSL Apache Knox Active Directory
12.
Page 12 ©
Hortonworks Inc. 2015 Apache Ranger
13.
Page 13 ©
Hortonworks Inc. 2015 Apache Ranger • Provides centralized policy definition for authorizing & auditing access to resources in a consistent manner. • Supported components as of v0.5 • HDFS • HBase • Hive • YARN • Knox • Storm • Solr • Kafka
14.
Page 14 ©
Hortonworks Inc. 2015 Setup Authorization Policies 14 file level access control, flexible definition Control permissions
15.
Page 15 ©
Hortonworks Inc. 2015 Monitor through Auditing
16.
Page 16 ©
Hortonworks Inc. 2015 Agent AgentAgent AgentAgent Agent Apache Ranger authZ Architecture HBase Hive YARN Knox Storm Solr Kafka Agent HDFS Agent Administration Portal (Ranger UI) REST APIs DB SOLR HDFS Policy Server LDAP/AD user/group sync Log4j KMS Audit Server User Sync Server
17.
Page 17 ©
Hortonworks Inc. 2015 Hadoop Cluster Sample Simplified Workflow - HDFS Policy Server Audit Server Administration Portal Agent Namenode Audit Store Ranger Policy Store Unauthorized user attempts to access the data User access is denied No Policy defined.
18.
Page 18 ©
Hortonworks Inc. 2015 Hadoop Cluster Sample Simplified Workflow - HDFS Policy Server Audit Server Administration Portal Admin sets policies for HDFS files/ folder1a 1b 1d Agent Namenode Audit Store Ranger Policy Store 1c
19.
Page 19 ©
Hortonworks Inc. 2015 Hadoop Cluster Sample Simplified Workflow - HDFS Policy Server Audit Server Administration Portal Admin sets policies for HDFS files/ folder1a Data scientist runs a map reduce job User Application Analysts access HDFS data through application IT users access HDFS through CLI 1b 2a 2a 2a Agent Namenode Namenode provides resource access to user/client Namenode uses Agent for Authorization2b Audit Store 2d 2c Ranger Policy Store 1d 1c
20.
Page 20 ©
Hortonworks Inc. 2015 Hadoop Cluster Sample Simplified Workflow - HDFS Policy Server Audit Server Administration Portal Admin sets policies for HDFS files/ folder1a Data scientist runs a map reduce job User Application Analysts access HDFS data through application IT users access HDFS through CLI 1b 2a 2a 2a Agent Namenode Namenode provides resource access to user/client Namenode uses Agent for Authorization2b Audit Store Admin requests the Audit report3a 3b 3c 2d 2c Ranger Policy Store 1d 1c
21.
Page 21 ©
Hortonworks Inc. 2015 Ranger UserSync Best Practice 21 • Ensure LDAPS is used to integrate with Ranger • Create OU ONLY for Hadoop users for performance • Only run usersync when necessary – How much users are being added and how often – How much users are changing roles – Too much syncing can degrade LDAP performance • Do not sync anonymously
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Hortonworks Inc. 2015 Ranger Audit Best Practices 22 • HDFS – Long term storage that can be used to understand user event trends and predict anomaly • RDBMS – When SQL is preferred by auditors – MySQL, Oracle, Postgres, SQL Server • Solr – Nice quick reporting metrics to understand user event trends • Log4j Appenders
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Hortonworks Inc. 2015 Ranger Stacks • Apache Ranger v0.5 supports stack-model to enable easier onboarding of new components, without requiring code changes in Apache Ranger. Ranger Side Changes Define Service-type Secured Components Side Changes Develop Ranger Authorization Plugin • Create a JSON file with following details : - Resources - Access types - Config to connect • Load the JSON into Ranger. • Include plugin library in the secure component. • During initialization of the service: Init RangerBasePlugIn & RangerDefaultAuditHandler class. • To authorize access to a resource: Use RangerAccessRequest.isAccessAllowed() • To support resource lookup: Implement RangerBaseService.lookupResource() & RangerBaseService.validateConfig() https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=53741207
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Hortonworks Inc. 2015 Summary & Misc. points 24 • All functions are available as Rest API • Ranger integrates with AD/LDAP for ranger login as well as user sync. • Support for High Availability (HA) • Support for Transparent Data Encryption with KMS implementation • Tighter integration with Apache Ambari • Stack based implementation of Plugins • Ranger also has the KMS for HDFS TDE. • Some features in development are – Spark support – Time based authorization – Geo Location based authorization
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Hortonworks Inc. 2015 Demo - HDFS Admin SamTom /demo/data/trihug /demo/data/trihugRanger UI WRITE Access denied READ Access denied 1 2 SamTom /demo/data/trihug WRITE Access allowed READ Access allowed 3 Grants access READ for Sam WRITE for Tom Ranger Plugin gets the update WRITE Access denied hdfs:hdfs rwx --- --- Elevated Privileges Restricted Privileges Directory already exists
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Hortonworks Inc. 2015 Demo - Hive Admin SamTom tickers eod Ranger UI WRITE Access denied READ Access denied 1 2 SamTom WRITE Access allowed READ Access to SOME COLUMNS allowed 3 Grants access READ for Sam ALL for Tom Ranger Plugin gets the update WRITE Access denied hive tables tickers eod hive tables tickers eod hive tables SOME COLUMNS READ Access to ALL COLUMNS denied Created by “hive” user in trihug schema Elevated Privileges Restricted Privileges GRANT Access allowed DB already exists
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Hortonworks Inc. 2015 Demo time..
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Hortonworks Inc. 2015 Thank you. Questions?
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