Configuration examples

The following examples demonstrate security configurations and cluster configurations for common scenarios. AWS CLI commands are shown for brevity.

Local KDC

The following commands create a cluster with a cluster-dedicated KDC running on the primary node. Additional configuration on the cluster is required. For more information, see Configuring an Amazon EMR cluster for Kerberos-authenticated HDFS users and SSH connections.

Create Security Configuration

aws emr create-security-configuration --name LocalKDCSecurityConfig \
--security-configuration '{"AuthenticationConfiguration": \
{"KerberosConfiguration": {"Provider": "ClusterDedicatedKdc",\
"ClusterDedicatedKdcConfiguration": {"TicketLifetimeInHours": 24 }}}}'

Create Cluster

aws emr create-cluster --release-label emr-7.10.0 \
--instance-count 3 --instance-type m5.xlarge \
--applications Name=Hadoop Name=Hive --ec2-attributes InstanceProfile=EMR_EC2_DefaultRole,KeyName=MyEC2Key \
--service-role EMR_DefaultRole \
--security-configuration LocalKDCSecurityConfig \
--kerberos-attributes Realm=EC2.INTERNAL,KdcAdminPassword=MyPassword

Cluster-dedicated KDC with Active Directory cross-realm trust

The following commands create a cluster with a cluster-dedicated KDC running on the primary node with a cross-realm trust to an Active Directory domain. Additional configuration on the cluster and in Active Directory is required. For more information, see Tutorial: Configure a cross-realm trust with an Active Directory domain.

Create Security Configuration

aws emr create-security-configuration --name LocalKDCWithADTrustSecurityConfig \
--security-configuration '{"AuthenticationConfiguration": \
{"KerberosConfiguration": {"Provider": "ClusterDedicatedKdc", \
"ClusterDedicatedKdcConfiguration": {"TicketLifetimeInHours": 24, \
"CrossRealmTrustConfiguration": {"Realm":"AD.DOMAIN.COM", \
"Domain":"ad.domain.com", "AdminServer":"ad.domain.com", \
"KdcServer":"ad.domain.com"}}}}}'

Create Cluster

aws emr create-cluster --release-label emr-7.10.0 \
--instance-count 3 --instance-type m5.xlarge --applications Name=Hadoop Name=Hive \
--ec2-attributes InstanceProfile=EMR_EC2_DefaultRole,KeyName=MyEC2Key \
--service-role EMR_DefaultRole --security-configuration KDCWithADTrustSecurityConfig \
--kerberos-attributes Realm=EC2.INTERNAL,KdcAdminPassword=MyClusterKDCAdminPassword,\
ADDomainJoinUser=ADUserLogonName,ADDomainJoinPassword=ADUserPassword,\
CrossRealmTrustPrincipalPassword=MatchADTrustPassword

External KDC on a different cluster

The following commands create a cluster that references a cluster-dedicated KDC on the primary node of a different cluster to authenticate principals. Additional configuration on the cluster is required. For more information, see Configuring an Amazon EMR cluster for Kerberos-authenticated HDFS users and SSH connections.

Create Security Configuration

aws emr create-security-configuration --name ExtKDCOnDifferentCluster \
--security-configuration '{"AuthenticationConfiguration": \
{"KerberosConfiguration": {"Provider": "ExternalKdc", \
"ExternalKdcConfiguration": {"KdcServerType": "Single", \
"AdminServer": "MasterDNSOfKDCMaster:749", \
"KdcServer": "MasterDNSOfKDCMaster:88"}}}}'

Create Cluster

aws emr create-cluster --release-label emr-7.10.0 \
--instance-count 3 --instance-type m5.xlarge \
--applications Name=Hadoop Name=Hive \
--ec2-attributes InstanceProfile=EMR_EC2_DefaultRole,KeyName=MyEC2Key \
--service-role EMR_DefaultRole --security-configuration ExtKDCOnDifferentCluster \
--kerberos-attributes Realm=EC2.INTERNAL,KdcAdminPassword=KDCOnMasterPassword

External cluster KDC with Active Directory cross-realm trust

The following commands create a cluster with no KDC. The cluster references a cluster-dedicated KDC running on the primary node of another cluster to authenticate principals. That KDC has a cross-realm trust with an Active Directory domain controller. Additional configuration on the primary node with the KDC is required. For more information, see Tutorial: Configure a cross-realm trust with an Active Directory domain.

Create Security Configuration

aws emr create-security-configuration --name ExtKDCWithADIntegration \
--security-configuration '{"AuthenticationConfiguration": \
{"KerberosConfiguration": {"Provider": "ExternalKdc", \
"ExternalKdcConfiguration": {"KdcServerType": "Single", \
"AdminServer": "MasterDNSofClusterKDC:749", \
"KdcServer": "MasterDNSofClusterKDC.com:88", \
"AdIntegrationConfiguration": {"AdRealm":"AD.DOMAIN.COM", \
"AdDomain":"ad.domain.com", \
"AdServer":"ad.domain.com"}}}}}'

Create Cluster

aws emr create-cluster --release-label emr-7.10.0 \
--instance-count 3 --instance-type m5.xlarge --applications Name=Hadoop Name=Hive \
--ec2-attributes InstanceProfile=EMR_EC2_DefaultRole,KeyName=MyEC2Key \
--service-role EMR_DefaultRole --security-configuration ExtKDCWithADIntegration \
--kerberos-attributes Realm=EC2.INTERNAL,KdcAdminPassword=KDCOnMasterPassword,\
ADDomainJoinUser=MyPrivilegedADUserName,ADDomainJoinPassword=PasswordForADDomainJoinUser