Hi Rob, Maybe this will help: I've considered two scopes for naming, one inside the OpenShift cluster, one outside.
The outside names indeed point to the OpenShift Routers (and optionally Registy and Master.) This has been implemented as a catch-all domain (*. apps.example.com) and possibly access to the Masters and Registry. The inside names include the above, and also the Nodes. That DNS server would likely only exist within the OpenShift cluster, and is implemented with dnsmasq.. which leads me to... Is everything going to be deployed in OpenStack? If so, do check out https://github.com/redhat-openstack/openshift-on-openstack I've got it already doing some fairly complex automated installs on my rack of gear here at Dell. HTH, -judd On Sun, Nov 6, 2016 at 5:20 PM, Rob <robert.sw...@gmail.com> wrote: > Hello, > > I am working on deploying OpenShift Origin using openshift-ansible and > following the 'advanced installation' method. Part of the prerequisites > discusses DNS but it is not entirely clear what the recommended path is for > my case. I had tried without cluster DNS but did not get very far. > > I do not intend the hosts in the cluster to be publicly addressable, nor > resolvable but instead traffic will be reverse proxied to pods running on > them via a router (or ingress controller when that migration occurs.) > > As such, I am intending to set up an authoritative DNS server containing A > records for the appropriate LAN IPs of the hosts in the cluster and > probably enable forwarding on it too to allow cluster hosts to use it for > querying. > > However, the DNS will be running as part of the cluster and the hosts and > networks will all have been provisioned from OpenStack. This means that > DHCP will roll out some DNS addresses to the hosts and then I need to > override those name servers with the cluster name server. It seems one can > do that using the openshift_dns_ip but the text also advises against using > this. > > What would be the recommended solution? > > Kind regards, > Rob > > _______________________________________________ > users mailing list > users@lists.openshift.redhat.com > http://lists.openshift.redhat.com/openshiftmm/listinfo/users > > -- Judd Maltin T: 917-882-1270 Of Life immense in passion, pulse, and power, Cheerful—for freest action form’d, under the laws divine, The Modern Man I sing. -Walt Whitman
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