The short answer is that you don't need public IP addresses. You can have everything running with private IPs.
On Thu, Dec 8, 2016 at 3:34 PM, Den Cowboy <[email protected]> wrote: > Thanks for your reply. Just the main goal we want to obtain is to keep our > traffic from pod to pod (using routes, router, dns-wildcard) internal. So > performing al this stuf on a private IP. Is that possible? > > I just checked this blog: http://dustymabe.com/2016/12/ > 07/installing-an-openshift-origin-cluster-on-fedora-25- > atomic-host-part-1/#comment-42901 > > > He is using public ip's + private ip's. Are the privates useful in this > case? > > We're able to use both and use and we can setup our own dns server but we > don't want that our routes are going outside of our cluster. In public and > than going back in the cluster. > > > So main goal: translations of routes through router should stay in the > private network. > Is that possible? > > > Thanks > ------------------------------ > *Van:* Frederic Giloux <[email protected]> > *Verzonden:* donderdag 8 december 2016 13:35:12 > *Aan:* Den Cowboy > *CC:* [email protected] > *Onderwerp:* Re: Which openshift instances need a public IP > > Hi Den, > > you may need internet connectivity. Public IPs is not a requirement for > that (confer proxy and NAT). Another option is to install OpenShift > disconnected. See: https://docs.openshift.com/container-platform/3.3/ > install_config/install/disconnected_install.html. > Disconnected Installation - Installing a Cluster ... > <https://docs.openshift.com/container-platform/3.3/install_config/install/disconnected_install.html> > docs.openshift.com > An OpenShift Container Platform disconnected installation differs from a > regular installation in two primary ways: > > Also, editing etc/hosts is not enough. You will require a proper DNS > server (dnsmasq for instance) as the containers don't use /etc/hosts of the > host for name resolution. > > Regards, > > Frédéric > > > On Thu, Dec 8, 2016 at 1:37 PM, Den Cowboy <[email protected]> wrote: > >> Hi, >> >> >> We have our own Registry (like dockerhub) from where we can pull images. >> (the registry is in the same private network 192.168.25.x). >> >> Now we're trying to install OpenShift (very basic: 1 master + 1 node) on >> 192.168.25.1 and 192.168.25.2. >> >> We have experience with those installs but than we used public ip's. >> >> We have SSH acces from our master to our node. >> >> >> But: prereqs: you need ansible on the master, git, docker on master and >> node, ... >> - So initially we need public ip's on our servers to install those >> prerequisitions? >> >> - Do we need a public IP on every instance when we want to run the >> playbook? (it failed for resolving something to check ik yum-utils were >> installed). >> >> - Is this a good solution?: (public IP and private on master and node). >> Install prereqs and execute playbook. So we have a cluster. After that >> deleting the public network and reexecuting the playbook with only private >> ip's (or only a public ip on the master). Will this work? >> >> >> So as you can see we can use some input in using the setup. >> We want that the traffic between our nodes goes internally. So we >> probably need our own DNS server for hosts, routing, wildcards. (initially >> we try to cover this in /etc/hosts). >> >> >> If someone has experience with the setup of OpenShift where the >> communication over routes (through the router) happends internally (so no >> public wildcard). Please share some knowledge :). >> >> _______________________________________________ >> users mailing list >> [email protected] >> http://lists.openshift.redhat.com/openshiftmm/listinfo/users >> >> > > > -- > *Frédéric Giloux* > Senior Middleware Consultant > > Red Hat GmbH > MesseTurm, Friedrich-Ebert-Anlage 49, 60308 Frankfurt am Main > > Mobile: +49 (0) 174 1724661 <callto:00491741724661> > E-Mail: [email protected], http://www.redhat.de/ > > Delivering value year after year > Red Hat ranks # 1 in value among software vendors > http://www.redhat.com/promo/vendor/ > > Freedom...Courage...Commitment...Accountability > ________________________________________________________________________ > Red Hat GmbH, http://www.de.redhat.com/ Sitz: Grasbrunn, > Handelsregister: Amtsgericht München, HRB 153243 > Geschäftsführer: Paul Argiry, Charles Cachera, Michael Cunningham, Michael > O'Neill > -- *Frédéric Giloux* Senior Middleware Consultant Red Hat GmbH MesseTurm, Friedrich-Ebert-Anlage 49, 60308 Frankfurt am Main Mobile: +49 (0) 174 1724661 <callto:00491741724661> E-Mail: [email protected], http://www.redhat.de/ Delivering value year after year Red Hat ranks # 1 in value among software vendors http://www.redhat.com/promo/vendor/ Freedom...Courage...Commitment...Accountability ________________________________________________________________________ Red Hat GmbH, http://www.de.redhat.com/ Sitz: Grasbrunn, Handelsregister: Amtsgericht München, HRB 153243 Geschäftsführer: Paul Argiry, Charles Cachera, Michael Cunningham, Michael O'Neill
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