Community Articles

Find and share helpful community-sourced technical articles.
Announcements
Celebrating as our community reaches 100,000 members! Thank you!
Labels (1)
avatar

How to setup a multi user (Active Directory backed) zeppelin integrated with ldap and using Livy Rest server .

Pre-requisites:

Setup the LDAP/AD integration for ambari using this lab (Enable Active Directory Authentication for Ambari):https://github.com/HortonworksUniversity/Security_Labs#lab-1

If you are using self-signed certificate, Download the SSL certificate to where zeppelin is running

<code>mkdir -p /etc/security/certificates

store the certificate in this directory

Import certificate for zeppelin to work with the self signed certificate.

<code>cd /etc/security/certificates  
keytool -import -alias sampledcfieldcloud -file ad01.your.domain.name.cer -keystore /usr/jdk64/jdk1.8.0_77/jre/lib/security/cacerts
keytool -list -v -keystore /usr/jdk64/jdk1.8.0_77/jre/lib/security/cacerts | grep sampledcfieldcloud

Create home directory in hdfs for the user that you will login:

<code>hdfs dfs -mkdir /user/hadoopadmin
hdfs dfs -chown hadoopadmin:hdfs /user/hadoopadmin

Enable multi-user zeppelin use ambari -> zeppelin notebook configs

expand the Advanced zeppelin-env and look for shiro.ini entry. Below is configuration that works with our sampledcfield Cloud.

<code>[users]
# List of users with their password allowed to access Zeppelin.
# To use a different strategy (LDAP / Database / ...) check the shiro doc at http://shiro.apache.org/configuration.html#Configuration-INISections
#admin = password1
#user1 = password2, role1, role2
#user2 = password3, role3
#user3 = password4, role2

# Sample LDAP configuration, for user Authentication, currently tested for single Realm
[main]
activeDirectoryRealm = org.apache.zeppelin.server.ActiveDirectoryGroupRealm 
#activeDirectoryRealm.systemUsername = CN=binduser,OU=ServiceUsers,DC=sampledcfield,DC=hortonworks,DC=com
activeDirectoryRealm.systemUsername = binduser
activeDirectoryRealm.systemPassword = xxxxxx 
activeDirectoryRealm.principalSuffix = @your.domain.name
#activeDirectoryRealm.hadoopSecurityCredentialPath = jceks://user/zeppelin/zeppelin.jceks 
activeDirectoryRealm.searchBase = DC=sampledcfield,DC=hortonworks,DC=com

activeDirectoryRealm.url = ldaps://ad01.your.domain.name:636 
activeDirectoryRealm.groupRolesMap = "CN=hadoop-admins,OU=CorpUsers,DC=sampledcfield,DC=hortonworks,DC=com":"admin"
activeDirectoryRealm.authorizationCachingEnabled = true 
sessionManager = org.apache.shiro.web.session.mgt.DefaultWebSessionManager 
cacheManager = org.apache.shiro.cache.MemoryConstrainedCacheManager 
securityManager.cacheManager = $cacheManager 
securityManager.sessionManager = $sessionManager 
securityManager.sessionManager.globalSessionTimeout = 86400000 

#ldapRealm = org.apache.shiro.realm.ldap.JndiLdapRealm
#ldapRealm.userDnTemplate = uid={0},cn=users,cn=accounts,dc=example,dc=com
#ldapRealm.contextFactory.url = ldap://ldaphost:389
#ldapRealm.contextFactory.authenticationMechanism = SIMPLE
#sessionManager = org.apache.shiro.web.session.mgt.DefaultWebSessionManager
#securityManager.sessionManager = $sessionManager
# 86,400,000 milliseconds = 24 hour
#securityManager.sessionManager.globalSessionTimeout = 86400000
shiro.loginUrl = /api/login

[roles] 
admin = * 

[urls] 
# anon means the access is anonymous. 
# authcBasic means Basic Auth Security 
# To enfore security, comment the line below and uncomment the next one 
/api/version = anon 
/api/interpreter/** = authc, roles[admin] 
/api/credential/** = authc, roles[admin] 
/api/configurations/** = authc, roles[admin] 
#/** = anon 
/** = authc 
#/** = authcBasic

Grant Livy ability to impersonate

Use Ambari to update core-site.xml, restart YARN & HDFS after making this change.

<code><property>
  <name>hadoop.proxyuser.livy.groups</name>
  <value>*</value>
</property>
<property>
  <name>hadoop.proxyuser.livy.hosts</name>
  <value>*</value>
</property>

Restart hdfs and yarn after this update.

After running the livy notebook make sure the yarn logs show the logged in user as the user that is running, hadoopadmin is the user that is logged in the zeppelin notebook. You should see 2 applications running the livy-session-X and the zeppelin app running in yarn

<code>application_1478287338271_0003  hadoopadmin livy-session-0
application_1478287338271_0002  zeppelin    Zeppelin

Troubleshooting, explore zeppelin and livy log files:

<code>tail -f /var/log/zeppelin/zeppelin-zeppelin-az1secure0.log
tail -f /var/log/zeppelin/zeppelin-interpreter-livy-zeppelin-az1secure0.log

Next Steps: This multi-part article shows how to Secure Spark with Ranger using Zeppelin and Livy for Multi-user access

Securing Spark with Ranger using Zeppelin and Livy for Multi-user access - Part 1

References:

https://zeppelin.apache.org/docs/0.6.0/interpreter/livy.html#faqhttp://dev.hortonworks.com.s3.amazonaws.com/HDPDocuments/HDP2/HDP-2-trunk/bk_command-line-installati... http://dev.hortonworks.com.s3.amazonaws.com/HDPDocuments/HDP2/HDP-2-trunk/bk_command-line-installati...

6,962 Views
Comments

Hi,

We are using AD for authentication and all AD users are able to login.I want to restrict access to only few AD users.Is it possible using roles ?

Please help on this.Thanks in advance

Hello Sharan, I have the same problem as you. Have you found the way to limit access to specific users/groups? Kind regards, Michał