Bug 1372457

Summary: [DOCS] Explain dnsmasq setups in more detail.
Product: OpenShift Container Platform Reporter: Eric Rich <erich>
Component: DocumentationAssignee: Ashley Hardin <ahardin>
Status: CLOSED CURRENTRELEASE QA Contact: Gan Huang <ghuang>
Severity: high Docs Contact: Vikram Goyal <vigoyal>
Priority: unspecified    
Version: 3.2.1CC: aos-bugs, ghuang, jokerman, mmccomas
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Last Closed: 2016-10-06 19:21:51 UTC Type: Bug
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Description Eric Rich 2016-09-01 18:54:34 UTC 
Document URL: Missing: https://bugzilla.redhat.com/show_bug.cgi?id=1372456

Section Number and Name: Missing https://bugzilla.redhat.com/show_bug.cgi?id=1372456

Describe the issue: 

Add the following note to the install docs that provides the following information. 

Certain containers do not properly move to the next nameserver when
the first issues SERVFAIL, RHEL based containers do not suffer from
this but certain versions of uclibc and musl do.
This is also the method for which we will enable pushing to the
registry via dns name rather than using the registry's service ip
address.

You could enable the same behavior by reproducing our dnsmasq setup
which forwards 'cluster.local' to skydns and then configuring the node
to use dnsmasq for resolution.

Suggestions for improvement: https://bugzilla.redhat.com/show_bug.cgi?id=1372456 

Additional information:
Comment 1 Ashley Hardin 2016-09-14 20:29:18 UTC 
Work in progress: https://github.com/openshift/openshift-docs/pull/2844
Comment 2 Ashley Hardin 2016-09-14 20:30:28 UTC 
*** Bug 1372456 has been marked as a duplicate of this bug. ***
Comment 3 Gan Huang 2016-09-20 09:55:35 UTC 
Looks good to me. Move to verified.
Comment 4 openshift-github-bot 2016-09-21 18:38:36 UTC 
Commits pushed to master at https://github.com/openshift/openshift-docs

https://github.com/openshift/openshift-docs/commit/71c04a148e3961d54ea31212b4906b70106899dc
Bug 1372457, explained the impact of disabling dnsmasq

https://github.com/openshift/openshift-docs/commit/a5fe6b97fd760eaca0ab7ca37260e74100069b51
Merge pull request #2844 from ahardin-rh/disable-dnsmasq

Bug 1372457, explained the impact of disabling dnsmasq
Comment 5 Ashley Hardin 2016-10-06 19:21:51 UTC 
Content is now published:
https://docs.openshift.com/container-platform/3.3/install_config/install/prerequisites.html#dns-config-prereq-disabling-dnsmasq