I installed devstack (on ubuntu 12.04)on my laptop and it woks perfectly. Now I want to install a paas over it. After searching the net, I found that openshift can only be installed over fedora 17 and cloudfoundry needs a folsom version. I don't know how to solve these problems because devtack is not supported with these. An other question : why other paas are not supported like google app engine for example.
[Full disclosure: I'm a developer on OpenShift]
There is a little confusion here about how and where OpenShift will run. OpenShift Origin 3.0 (latest stable version at the time of this post) runs on Fedora 19 as well as RHEL and CentOS 6.x. With that in mind, because OpenStack provides a layer of abstraction between your hardware and your hosted instances, there's nothing preventing you from running F19, RHEL or CentOS 6.x on top of DevStack on your Ubuntu system.
Once you have a "minimal" install of one of these running on your DevStack, you can install OpenShift from that instance's login shell with a single command:
sh <(curl -s https://install.openshift.com)
The installer will guide you through adding any required repos or RPMs that aren't already available on that instance. Hope this helps!
[Edit: If you need help standing up OpenShift, come find me on FreeNode at #openshift-dev]
You can install AppScale (the open source implementation of GAE) or Apache Stratos PaaS on OpenStack, but you need a lot of capacity and I think OpenShift shall run on Havana and in general most PaaS solutions are cloud agnostic. If you want to have a PaaS on top of OpenStack and are using some flavors of Red Hat such as RDO or RHOSP, I would say OpenShift might be the right solution.
(disclosure, I'm working on Cloud Foundry as dev advocate)
To address your question specifically about Google App Engine, GAE is closed source, so you can't just deploy that on your own private environment. As cloudssky points out, there's something called AppScale which is similar to an implementation of GAE which may work for you.
For Cloud Foundry, actually it can be run on Grizzly or Havana and devstack - check out https://groups.google.com/a/cloudfoundry.org/d/topic/bosh-users/opV8dRdVhcQ/ (this mailing list discussion) for example. There are a bunch of folks on Twitter like @ferdy, @drnic, @anynines who should be able to help you and there are many organisations running CF on top of OpenStack without issues (actually AnyNines recently blogged about having moved their live PaaS from vSphere to OpenStack http://blog.cloudfoundry.com/2014/01/29/migrating-a-cloud-foundry-paas-to-run-on-openstack/ (Migrating a Cloud Foundry to run on OpenStack)
In addition, Piston and Canonical have both stated their intentions to support CF on top of OpenStack.
I cannot speak for other PaaS options as I am not experience with them.
First two answers/comments are not at all useful or relevant to the question and are basically just trolling my response, which was aiming to be helpful. In the case of the first answer, it is also inaccurate. Evidently http://ask.openstack.org doesn't allow me to downvote them as Stack Exchange would.
Asked: 2014-02-10 23:56:04 -0500
Seen: 1,136 times
Last updated: Feb 16 '14
Red Hat's OpenShift Platform as a Service will run on RHEL 6, CentOs 6.5 or Fedora 19. It you are looking for installation support, go to http://install.openshift.com or try using the Heat templates in https://github.com/openstack/heat-templates (https://github.com/openstack/heat-tem...) These should get you started.