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Questions tagged [openstack]

OpenStack is a collection of open source projects that enables an open, scalable cloud infrastructure. The core of OpenStack is meant to provide consistent APIs and interfaces to a variety of potential back-ends.

OpenStack is an open-source platform for building infrastructure-as-a-service (IaaS) clouds. It is implemented including several components, most notable being:

  • a Compute service (codenamed Nova) that has functionality similar to EC2 AWS (and implements an EC2-compatible API, as well as a separate OpenStack API)
  • an Object Storage service (codenamed Swift) that has functionality similar to EC2 S3.
  • An Image service (codenamed Glance) that manages virtual machine images used by the Compute service
  • An Identity service (codenamed Keystone) that manages user names and groups (known as tenants) across the OpenStack projects
  • A Dashboard service (codenamed Horizon) that provides a web interface.
  • A Network service (codenamed Neutron) that provides a set of components for makings SDN networking between VM's inside a project.

Official page

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675 questions
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HTTP failure within Docker container hosted in OpenStack

I've currently got Docker running on a couple of OpenStack-hosted VMs. When attempting to make HTTP requests from within containers on those machines, the request almost invariably hangs waiting for a response. When making HTTPS requests, the…
Mac
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How to restore a guest Windows 2012 R2 VM installation/backup from VMWare to OpenStack?

I have a VMWare VM with Windows 2012 R2 installed in DC#1. The machine has terminal services set up with user accounts and permissions, lots of software installed and bunch of things configured that would probably take me many hours or even days to…
Mihail Russu
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GPU support on OpenStack/CloudStack

I'm wondering if anyone here has had success with any of the cloud orchestration layers using a GPU (preferably vGPU)? I've been able to get XenServer 6.2 to successfully see our nvidia GRID K1 card but didn't know if any of the OpenStack/CloudStack…
Dillon
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Configuring Puppet to set up Cinder with GlusterFS

I've spent quite some time now attempting to configure Puppet so that it will setup Cinder to use GlusterFS as the backend, rather than the LVMISCSI backend, but I haven't had any luck. Versions: Puppet 3.7.3 Cinder 1.0.8 Gluster 3.4.2 Ubuntu 14.10…
ironhardchaw
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OpenStack multiple compute node resources allocation for single vm instance

Im learning about OpenStack and understand that resources of a single compute node can be allocated and shared between multiple vm instances. If we assume that I have a single application that requires resources exponentially and runs on a single vm…
user140239
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Shutting down Openstack server and virtual machines

When I shutdown Openstack compute host (for example reboot required by updates) what happens to virtual machines that were running on that host? I know that when host starts again the virtual machines are in shutdown state. But were they shutdown…
Madoc Comadrin
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How many VMs per core/vcpu can be run in OpenStack

I'm working on a simulation tool to model VM behavior and migrations on Cloud environments. I deployed a little OpenStack cluster with 4 nodes on cheap regular hardware PCs at the university using DevStack. I remember that I couldn't run more VMs…
Albert Vonpupp
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OpenStack soft reboot instance vs. sudo reboot

Is there any difference between performing an OpenStack soft reboot instance through the web interface Horizon and SSH into the instance and perform sudo reboot?
Franck Dernoncourt
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How to remove / add public network to a server in Rackspace API

I have a server in Rackspace API. I would like to use the nova command to remove the public network interface. I am using the command: nova virtual-interface-list and then nova virtual-interface-delete …
Daniel Cukier
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Creating an Openstack user with only reboot permissions

What is the best approach for setting up an Openstack user that is limited to only rebooting servers using the Web API. The user needs to be able to access servers under different tenants, by using the instance id for look-up. The user should be…
eandersson
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juju bootstrap fails, connection refused port 22

I have a MAAS installation with it's interface at 10.12.1.3/MAAS. It is responsible for DHCP/DNS and the configurations are as follows: ip: 10.12.1.4 subnet mask: 255.255.255.0 broadcast ip: 10.12.1.255 router ip: 10.12.1.1 ip…
Ryan
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What's the point in limiting the number of security groups per tenant In OpenStack?

By default, a tenant (1) can only create 10 security groups (2). Is there any reason to keep this number so low? (1) http://docs.openstack.org/grizzly/openstack-compute/admin/content//users-and-projects.html: Legacy terminology: earlier versions of…
Franck Dernoncourt
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How Can I Update user-data on Openstack?

I have a bunch of openstack VMs running on Grizzly. I need to change their domain which is currently managed by cloud-init. How do I update the user-data?
dmourati
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Openstack seems to not map internal IPs to local network properly

I have a very confusing issue which I can't seem to resolve. I followed a guide by Loic Dachary on installing Openstack Folsom on Wheezy, and deployed it on two hosts: a cluster node, and my workstation. On these two hosts I'm running a benchmarking…
user991710
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Issue with creating an Windows 2008 virtualized image with QEMU

I'm trying to create a QEMU image of a 64-bit Windows 2008 Server install. It will be used on OpenStack as an instance. The virtualization environment (of QEMU) is being run from a VMware virtual instance. (This is a development environment, not…
monksy
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