An Ambari Service for SSSD
Ambari service for easily installing and managing SSSD on HDP cluster
This can be used in conjunction with other security related Ambari services to setup security on a cluster
- Steps on how to use Ambari services to automate the install of OpenLDAP, KDC, NSLCD/SSSD on existing cluster, and then running Ambari kerberos wizard
- Steps on how to use blueprints to deploy a cluster with OpenLDAP, KDC, SSSD/SSSD, and then run Ambari kerberos wizard
Limitations:
- This is not an officially supported service and is not meant to be deployed in production systems. It is only meant for testing demo/purposes
- It does not support Ambari/HDP upgrade process and will cause upgrade problems if not removed prior to upgrade
Author: Ali Bajwa
Setup
- Download HDP 2.2 sandbox VM image (Sandbox_HDP_2.2_VMware.ova) from Hortonworks website
- Import Sandbox_HDP_2.2_VMware.ova into VMWare and set the VM memory size to 8GB
- Now start the VM
- After it boots up, find the IP address of the VM and add an entry into your machines hosts file e.g.
192.168.191.241 sandbox.hortonworks.com sandbox
- Connect to the VM via SSH (password hadoop) and start Ambari server
ssh root@sandbox.hortonworks.com
/root/start_ambari.sh
- To deploy the SSSD service, run below
VERSION=`hdp-select status hadoop-client | sed 's/hadoop-client - \([0-9]\.[0-9]\).*/\1/'`
sudo git clone https://github.com/abajwa-hw/sssd-service.git /var/lib/ambari-server/resources/stacks/HDP/$VERSION/services/SSSD
- Restart Ambari
#sandbox
sudo service ambari restart
#non-sandbox
sudo service ambari-server restart
- Then you can click on 'Add Service' from the 'Actions' dropdown menu in the bottom left of the Ambari dashboard:
On bottom left -> Actions -> Add service -> check SSSD server -> Next -> Next -> Enter password -> Next -> Deploy
-
On successful deployment you will see the SSSD service as part of Ambari stack and will be able to start/stop the service from here:
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When you've completed the install process, SSSD server will appear in Ambari
-
You can see the parameters you configured under 'Configs' tab
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One benefit to wrapping the component in Ambari service is that you can now monitor/manage this service remotely via REST API
export SERVICE=SSSD
export PASSWORD=admin
export AMBARI_HOST=sandbox.hortonworks.com
export CLUSTER=Sandbox
#get service status
curl -u admin:$PASSWORD -i -H 'X-Requested-By: ambari' -X GET http://$AMBARI_HOST:8080/api/v1/clusters/$CLUSTER/services/$SERVICE
#start service
curl -u admin:$PASSWORD -i -H 'X-Requested-By: ambari' -X PUT -d '{"RequestInfo": {"context" :"Start $SERVICE via REST"}, "Body": {"ServiceInfo": {"state": "STARTED"}}}' http://$AMBARI_HOST:8080/api/v1/clusters/$CLUSTER/services/$SERVICE
#stop service
curl -u admin:$PASSWORD -i -H 'X-Requested-By: ambari' -X PUT -d '{"RequestInfo": {"context" :"Stop $SERVICE via REST"}, "Body": {"ServiceInfo": {"state": "INSTALLED"}}}' http://$AMBARI_HOST:8080/api/v1/clusters/$CLUSTER/services/$SERVICE
- To remove the SSSD service:
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Stop the service via Ambari
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Delete the service
curl -u admin:admin -i -H 'X-Requested-By: ambari' -X DELETE http://sandbox.hortonworks.com:8080/api/v1/clusters/$CLUSTER/services/SSSD -
Remove SSSD rpm and config files
yum remove sssd rm -f /etc/sssd/sssd.conf
-
Browse LDAP users from Hadoop cluster
- Your operating system can now recognize your LDAP users (e.g. in OpenLDAP)
[root@sandbox ~]# id harry
uid=1550801107(harry) gid=1550800513(Domain Users) groups=1550800513(Domain Users),1550801108(Marketing),1550801109(Sales)
[root@sandbox ~]# groups harry
harry : Domain Users Marketing Sales