Re: [CentOS-devel] Multiple Geo Rep issues due to SELINUX on CentOS 8.3

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Hi Srijan,

I just checked the gluster repo 'centos-gluster8' and it seems that there is no gluster package containing 'selinux' in the name . Same is valid for CentOS 7.
Maybe I have to address that to the CentOS Storage SIG ?


Best Regards,
Strahil Nikolov






В сряда, 6 януари 2021 г., 10:44:37 Гринуич+2, Strahil Nikolov via CentOS-devel <centos-devel@xxxxxxxxxx> написа: 





Hi Srijan,

I will redeploy the scenario and I will check if the steps include that package.
Shouldn't glusterfs-selinux a dependency ?

Best Regards,
Strahil Nikolov






В сряда, 6 януари 2021 г., 07:29:27 Гринуич+2, Srijan Sivakumar <ssivakum@xxxxxxxxxx> написа: 





Hi Strahil,

Selinux policies and rules have to be added for gluster processes to work as intended when selinux is in enforced mode. Could you confirm if you've installed the glusterfs-selinux package in the nodes ?
If not then you can check out the repo at https://github.com/gluster/glusterfs-selinux.

Regards,
Srijan

On Wed, Jan 6, 2021 at 2:15 AM Strahil Nikolov <hunter86_bg@xxxxxxxxx> wrote:
> Did anyone receive that e-mail ?
> Any hints ?
> 
> Best Regards,
> Strahil Nikolov
> 
> В 19:05 +0000 на 30.12.2020 (ср), Strahil Nikolov написа:
>> Hello All,
>> 
>> I have been testing Geo Replication on Gluster v 8.3 ontop CentOS
>> 8.3.
>> It seems that everything works untill SELINUX is added to the
>> equasion.
>> 
>> So far I have identified several issues on the Master Volume's nodes:
>> - /usr/lib/ld-linux-x86-64.so.2 has a different SELINUX Context than
>> the target that it is pointing to. For details check 
>> https://bugzilla.redhat.com/show_bug.cgi?id=1911133
>> 
>> - SELINUX prevents /usr/bin/ssh from search access to
>> /var/lib/glusterd/geo-replication/secret.pem
>> 
>> - SELinux is preventing /usr/bin/ssh from search access to .ssh
>> 
>> - SELinux is preventing /usr/bin/ssh from search access to
>> /tmp/gsyncd-aux-ssh-tnwpw5tx/274d5d142b02f84644d658beaf86edae.sock
>> 
>> Note: Using 'semanage fcontext' doesn't work due to the fact that
>> files created are inheriting the SELINUX context of the parent dir
>> and you need to restorecon after every file creation by the geo-
>> replication process.
>> 
>> - SELinux is preventing /usr/bin/rsync from search access on 
>> .gfid/00000000-0000-0000-0000-000000000001
>> 
>> Obviously, those needs fixing before anyone is able to use Geo-
>> Replication with SELINUX enabled on the "master" volume nodes.
>> 
>> Should I open a bugzilla at bugzilla.redhat.com for the selinux
>> policy?
>> 
>> Further details:
>> [root@glustera ~]# cat /etc/centos-release
>> CentOS Linux release 8.3.2011
>> 
>> [root@glustera ~]# rpm -qa | grep selinux | sort
>> libselinux-2.9-4.el8_3.x86_64
>> libselinux-utils-2.9-4.el8_3.x86_64
>> python3-libselinux-2.9-4.el8_3.x86_64
>> rpm-plugin-selinux-4.14.3-4.el8.x86_64
>> selinux-policy-3.14.3-54.el8.noarch
>> selinux-policy-devel-3.14.3-54.el8.noarch
>> selinux-policy-doc-3.14.3-54.el8.noarch
>> selinux-policy-targeted-3.14.3-54.el8.noarch
>> 
>> [root@glustera ~]# rpm -qa | grep gluster | sort
>> centos-release-gluster8-1.0-1.el8.noarch
>> glusterfs-8.3-1.el8.x86_64
>> glusterfs-cli-8.3-1.el8.x86_64
>> glusterfs-client-xlators-8.3-1.el8.x86_64
>> glusterfs-fuse-8.3-1.el8.x86_64
>> glusterfs-geo-replication-8.3-1.el8.x86_64
>> glusterfs-server-8.3-1.el8.x86_64
>> libglusterd0-8.3-1.el8.x86_64
>> libglusterfs0-8.3-1.el8.x86_64
>> python3-gluster-8.3-1.el8.x86_64
>> 
>> 
>> [root@glustera ~]# gluster volume info primary
>>  
>> Volume Name: primary
>> Type: Distributed-Replicate
>> Volume ID: 89903ca4-9817-4c6f-99de-5fb3e6fd10e7
>> Status: Started
>> Snapshot Count: 0
>> Number of Bricks: 5 x 3 = 15
>> Transport-type: tcp
>> Bricks:
>> Brick1: glustera:/bricks/brick-a1/brick
>> Brick2: glusterb:/bricks/brick-b1/brick
>> Brick3: glusterc:/bricks/brick-c1/brick
>> Brick4: glustera:/bricks/brick-a2/brick
>> Brick5: glusterb:/bricks/brick-b2/brick
>> Brick6: glusterc:/bricks/brick-c2/brick
>> Brick7: glustera:/bricks/brick-a3/brick
>> Brick8: glusterb:/bricks/brick-b3/brick
>> Brick9: glusterc:/bricks/brick-c3/brick
>> Brick10: glustera:/bricks/brick-a4/brick
>> Brick11: glusterb:/bricks/brick-b4/brick
>> Brick12: glusterc:/bricks/brick-c4/brick
>> Brick13: glustera:/bricks/brick-a5/brick
>> Brick14: glusterb:/bricks/brick-b5/brick
>> Brick15: glusterc:/bricks/brick-c5/brick
>> Options Reconfigured:
>> changelog.changelog: on
>> geo-replication.ignore-pid-check: on
>> geo-replication.indexing: on
>> storage.fips-mode-rchecksum: on
>> transport.address-family: inet
>> nfs.disable: on
>> performance.client-io-threads: off
>> cluster.enable-shared-storage: enable
>> 
>> I'm attaching the audit log and sealert analysis from glustera (one
>> of the 3 nodes consisting of the 'master' volume).
>> 
>> 
>> Best Regards,
>> Strahil Nikolov
> 
>> 
> 
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