Bug 1658612

Summary: SELinux denies container to container synchronization
Product: Red Hat OpenStack Reporter: Zoli Caplovic <zcaplovi>
Component: openstack-selinuxAssignee: Zoli Caplovic <zcaplovi>
Status: CLOSED DUPLICATE QA Contact: Jon Schlueter <jschluet>
Severity: low Docs Contact:
Priority: low    
Version: 8.0 (Liberty)CC: alberto.gonzalez, jschluet, lhh, mburns, mgrepl, slinaber
Target Milestone: ---Keywords: Triaged, ZStream
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: openstack-selinux-0.8.16-1.el7ost Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1652297 Environment:
Last Closed: 2019-02-04 15:41:08 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1652297, 1658617, 1658618, 1658619    
Bug Blocks:    

Description Zoli Caplovic 2018-12-12 14:15:15 UTC
+++ This bug was initially created as a clone of Bug #1652297 +++

Description of problem:

Running "swift-init container-sync once" throws this error:

Nov 21 14:59:14 ctrl01 container-server[1378]: Failed to update sync_store /srv/node/swiftloopback/containers/174991/f3f/aae3e64f909b58ab302a0fbb385eff3f/aae3e64f909b58ab302a0fbb385eff3f.db: #012Traceback (most recent call last):#012  File "/usr/lib/python2.7/site-packages/swift/container/replicator.py", line 194, in _post_replicate_hook#012    self.sync_store.update_sync_store(broker)#012  File "/usr/lib/python2.7/site-packages/swift/container/sync_store.py", line 159, in update_sync_store#012    self.add_synced_container(broker)#012  File "/usr/lib/python2.7/site-packages/swift/container/sync_store.py", line 81, in add_synced_container#012    raise oserr#012OSError: [Errno 13] Permission denied: '/srv/node/swiftloopback/sync_containers/174991/f3f/aae3e64f909b58ab302a0fbb385eff3f/aae3e64f909b58ab302a0fbb385eff3f.db'


Version-Release number of selected component (if applicable):
openstack-packstack-12.0.0-3.el7ost.noarch
openstack-packstack-puppet-12.0.0-3.el7ost.noarch


How reproducible:
Configure Container to Container and do synchronization

Steps to Reproduce:
1.
2.
3.

Actual results:
SELinux blocks link creation:
type=AVC msg=audit(1542830504.754:4792): avc:  denied  { read } for  pid=1378 comm="swift-container" name="aae3e64f909b58ab302a0fbb385eff3f.db" dev="loop0" ino=20 scontext=system_u:system_r:swift_t:s0 tcontext=system_u:object_r:swift_data_t:s0 tclass=lnk_file


Expected results:
Synchronization done correctly.

Additional info:
The missing rule is the following:
[root@ctrl01 ~(keystone_admin)]# tail -100 /var/log/audit/audit.log|audit2allow


#============= swift_t ==============
allow swift_t swift_data_t:lnk_file create;

--- Additional comment from Zoli Caplovic on 2018-11-28 16:59:54 UTC ---

Hello Alberto, 

just for confirmation - the statement: 
"The missing rule is the following: allow swift_t swift_data_t:lnk_file create;" 

can be understood as "we need to add this rule and it will be working" or as "this seems to be the probable cause". 

Thank you for the clarification

Zoli Caplovic

--- Additional comment from Alberto Gonzalez on 2018-11-28 17:02:59 UTC ---

Hello,

we need to add this rule and it will be working

--- Additional comment from Zoli Caplovic on 2018-11-28 17:06:35 UTC ---

Thanks Alberto for the clarification. Will work on adding the rule.


Zoli

Comment 9 Steve Linabery 2019-02-04 15:41:08 UTC

*** This bug has been marked as a duplicate of bug 1658606 ***