Bug 1515847

Summary: satellite-clone removed needed /etc/hosts entries
Product: Red Hat Satellite Reporter: Tomer Brisker <tbrisker>
Component: Satellite CloneAssignee: John Mitsch <jomitsch>
Status: CLOSED ERRATA QA Contact: Evgeni Golov <egolov>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 6.3.0CC: bbuckingham, egolov, mmccune, sthirugn
Target Milestone: UnspecifiedKeywords: Triaged
Target Release: Unused   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2018-02-19 17:23:12 UTC Type: Bug
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:    
Bug Blocks: 1533259    

Description Tomer Brisker 2017-11-21 13:23:20 UTC
A user that needs to have cdn.redhat.com in their /etc/hosts file to properly resolve the CDN gets that entry removed when satellite-clone is run, leading to a failed installation of Satellite.

Version-Release number of selected component (if applicable):
HTB

How reproducible:
Always

Steps to Reproduce:
1. Create a host that can't resolve cdn.redhat.com (e.g. by disabling dns)
2. Add an entery in /etc/hosts for cdn.redhat.com
3. Run satellite-clone

Actual results:
TASK [satellite-clone : Install Satellite 6.2 packages] ************************************************
fatal: [localhost]: FAILED! => {"changed": false, "failed": true, "msg": "[Errno -3] Temporary failure in name resolution\nhttps://cdn.redhat.com/content/dist/rhel/server/7/7Server/x86_64/os/repodata/repomd.xml: [Errno 14] curl#6 - \"Could not resolve host: cdn.redhat.com; Temporary failure in name resolution\"\nTrying other mirror.\n\n\n One of the configured repositories failed (Red Hat Enterprise Linux 7 Server (RPMs)),\n and yum doesn't have enough cached data to continue. At this point the only\n safe thing yum can do is fail. There are a few ways to work \"fix\" this:\n\n     1. Contact the upstream for the repository and get them to fix the problem.\n\n     2. Reconfigure the baseurl/etc. for the repository, to point to a working\n        upstream. This is most often useful if you are using a newer\n        distribution release than is supported by the repository (and the\n        packages for the previous distribution release still work).\n\n     3. Disable the repository, so yum won't use it by default. Yum will then\n        just ignore the repository until you permanently enable it again or use\n        --enablerepo for temporary usage:\n\n            yum-config-manager --disable rhel-7-server-rpms\n\n     4. Configure the failing repository to be skipped, if it is unavailable.\n        Note that yum will try to contact the repo. when it runs most commands,\n        so will have to try and fail each time (and thus. yum will be be much\n        slower). If it is a very temporary problem though, this is often a nice\n        compromise:\n\n            yum-config-manager --save --setopt=rhel-7-server-rpms.skip_if_unavailable=true\n\nfailure: repodata/repomd.xml from rhel-7-server-rpms: [Errno 256] No more mirrors to try.\nhttps://cdn.redhat.com/content/dist/rhel/server/7/7Server/x86_64/os/repodata/repomd.xml: [Errno 14] curl#6 - \"Could not resolve host: cdn.redhat.com; Temporary failure in name resolution\"\n", "rc": 1, "results": []}


Expected results:
Satellite is installed correctly.


Additional info:
Current workaround is to disable the /etc/hosts task in the clone playbook.

Comment 2 sthirugn@redhat.com 2018-01-08 19:10:43 UTC
upstream issue - https://github.com/RedHatSatellite/satellite-clone/issues/281

Comment 3 John Mitsch 2018-01-10 21:33:14 UTC
option added upstream https://github.com/RedHatSatellite/satellite-clone/pull/288

Comment 4 Evgeni Golov 2018-02-02 12:48:01 UTC
VERFIED
satellite-clone-1.2.1-1.el7sat.noarch

# cat /etc/hosts
192.0.2.1	testing.example.com
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

# grep etc_hosts /etc/satellite-clone/satellite-clone-vars.yml 
overwrite_etc_hosts: false

# satellite-clone

...
TASK [satellite-clone : create /etc/hosts] ************************************
Friday 02 February 2018  11:44:30 +0000 (0:00:00.360)       0:00:08.216 ******* 
skipping: [localhost]
...

# cat /etc/hosts
192.0.2.1	testing.example.com
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6



However, I think the whole logic should be opt-in, rather than opt-out, so I opened https://github.com/RedHatSatellite/satellite-clone/issues/319 for further discussion upstream.

Comment 7 errata-xmlrpc 2018-02-19 17:23:12 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:0330