From: cpebenito@tresys.com (Christopher J. PeBenito)
Date: Wed, 8 Feb 2012 14:46:10 -0500
Subject: [refpolicy] SELinux policy for Hadoop
In-Reply-To: <001801cce698$0bd44560$237cd020$@edu>
References: <001801cce698$0bd44560$237cd020$@edu>
Message-ID: <4F32D102.3060605@tresys.com>
To: refpolicy@oss.tresys.com
List-Id: refpolicy.oss.tresys.com

On 02/08/12 14:29, Jean Khosalim wrote:
> I built a Fedora 16 system and installed Cloudera's CDH3 (with Hadoop-0.20).
> SElinux is enforcing and policy used is 'targeted'. Ran a simple wordcount
> example and it works. But I noticed that the Hadoop related processes are
> running with 'system_u:system_r:initrc_t:s0'. I was expecting hadoop_t
> instead of initrc_t. I also noticed that there is no 'hadoop.pp' in
> /etc/selinux/targeted/modules/active/modules directory.
> 
>  
> 
> I ran 'yum update' on the system and force autorelabel on boot (add
> 'enforcing=0 autorelabel' to grub). After reboot, it looks like nothing
> changed, i.e., Hadoop related processes still run with
> 'system_u:system_r:initrc_t:s0' and there is no 'hadoop.pp' in
> /etc/selinux/targeted/modules/active/modules directory.
> 
>  
> 
> Then I downloaded the source rpm for selinux-policy-3.10.0-75.fc16.src.rpm.
> Looking at the source files, I noticed that modules_targeted.conf doesn't
> have 'hadoop'. I modified the file to add in 'hadoop' and ran 'rpmbuild -ba
> ./rpmbuild/SPECS/selinux-policy.spec' which generated a new set of rpm. I
> did a force rpm install of the newly created
> selinux-policy-3.10.0-75.fc16.noarch.rpm and
> selinux-policy-targeted-3.10.0-75.fc16.noarch.rpm. Then I rebooted the
> system.
> 
>  
> 
> After the reboot, I now see 'hadoop.pp' IS in
> /etc/selinux/targeted/modules/active/modules directory and the hadoop
> related processes are now running with
> 'system_u:system_r:unconfined_java_t:s0'. Is my expectation that the hadoop
> related processes will run as 'hadoop_t' incorrect? Are there any steps that
> I am missing?

Did you relabel after you updated the policy?

-- 
Chris PeBenito
Tresys Technology, LLC
www.tresys.com | oss.tresys.com