OpenStack (http://openstack.org) 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.

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Relationship between Vagrant, Docker, Chef and OpenStack (or similar products)?

I am a web developer, but I am also interested in a few administrative tasks. Hence, the new move from pure administration to dev-ops comes handy for me. Anyway, I have some problems to put a few ...
7
votes
2answers
5k views

Monitor VM's resources (CPU, RAM etc)

I'm testing Openstack and i'd like to know how can i find out about resource utilization inside instances (Virtual Machines). Openstack uses kvm, qemu and libvirt in my testing environment. Is there ...
5
votes
4answers
452 views

Migration between OpenStack and RackSpace cloud

So I am deploying a OpenStack private cloud in my business. As I understand from research the OpenStack project was created by RackSpace and that their own cloud platform uses OpenStack. So my ...
5
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2answers
215 views

Deploying Openstack without internet access

I have about a dozen rather beefy machines on a separate network. This network is not (will not be, cannot be) connected to the internet. I'd like to deploy Openstack on them so that they can be used ...
4
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1answer
2k views

Why does host swap out VMs when there are 16GB of buffer cache and swappiness = 0? [duplicate]

I have a desktop running Ubuntu Quantal using OpenStack Folsom on an Intel i5 with 32 GB RAM and 2 GB swap. I'm running 7 VMs each sized like a EC2 m1.small, so 1.7 GB RAM each. I'm using KVM. As I ...
4
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2answers
8k views

What is the correct network configuration for a devStack VM (virtualbox)?

Usually when I setup a new Ubuntu VM, i keep the eth0 in NAT mode to get the internet & I add a eth1 interface in HostOnly mode so that I can ssh. But using this devStack guide : Running a Cloud ...
4
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1answer
2k views

Is OpenStack live migration possible without shared storage?

Like many people I am considering creating 'private cloud' using either OpenStack or VMware. VMware vMotion has a nice feature which allows Live Migration of VMs even without shared storage. I have ...
4
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3answers
444 views

OpenStack - assign security group to existing instance

I want to assign a security group to an existing instance. Is this possible?
4
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1answer
4k views

Vagrant (Virtualbox) host-only multiple node networking issue

I'm trying to use a multi-VM vagrant environment as a testbed for deploying OpenStack, and I've run into a networking problem with trying to communicate from one VM, to a VM-inside-of-a-VM. I have ...
4
votes
2answers
683 views

Issue with creating an Windows 2008 Virtualized image with qEmu

I'm trying to create a qemu image of a 64bit 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 ...
4
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3answers
2k views

Openstack: Is it possible to migrate an instance from a dead compute server to a live one?

I've got a cluster with 84 Openstack Essex compute nodes, one of which decided to pine for the fjords about 2 hours ago, with 8 running instances on it. The instances are all running off qcow2 disks ...
4
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2answers
599 views

Are DNAT and REDIRECT equivalent when applied to locally destined traffic?

In setting up our OpenStack environment, I ran into a problem that was preventing instances from contacting a server running on the host. The metadata service (which exposes an HTTP API) runs on port ...
4
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1answer
1k views

How does OpenStack Glance work with Keystone and what exactly are these configuration options for?

I am configuring Glance to authenticate against Keystone. It works but I am unsure exactly how some of the authentication options interact. I started with the configuring glance documentation, but ...
3
votes
1answer
3k views

Instances in OpenStack are not getting DHCP leases

When I start instances in openstack, they don't get DHCP leases. When I go into the instance and manually configure the IP that would have been assigned. Network flows fine. With TCPDump, I can see ...
3
votes
1answer
2k views

Why does OpenStack distinguish images from snapshots?

Usually, http://serverfault.com/a/268727/126950: snapshot = an exact capture of what a volume looked like at a particular moment in time, including all it's data. image = a total snapshot of a ...
3
votes
2answers
513 views

Packets only get forwarded when tcpdump running on bridge

I ran into the oddest thing when trying to debug a networking issue with OpenStack. I was doing a ping test between virtual machines. The ICMP request packets only made it to the destination host if I ...
3
votes
1answer
380 views

OpenStack “quantum” network manager and existing bridge/VLAN devices

The Quantum network manager included with recent versions of OpenStack does not support the --bridge and --bridge-interface arguments to the nova-list network create command. Short of writing a new ...
3
votes
2answers
2k views

Why can't Openstack VM reach itself via it's Floating IP?

I set up an OpenStack Folsom (2012.2) multi-node, single-network infrastructure. Everything runs fine, instances are running good on any compute node, private network works like a charm and all ...
3
votes
1answer
563 views

Deploy Hadoop to Openstack

I'd like to deploy Hadoop to Openstack cloud. Is there any automatic way to do that? Anyone tried to do that? I'm looking for some devops like juju. I've never used juju and right now I'm going ...
3
votes
3answers
2k views

How can import an existing linux machine into Rackspace?

How can import an existing linux machine into Rackspace is pretty much what I'd like to know. I've got a VM hosted in a datacenter, and I'd like to move that VM, which is configured and running ...
3
votes
3answers
2k views

What happens if an OpenStack cloud controller dies?

I've been reading up on OpenStack and how we can re-create an EC2/S3-style cloud for our internal development and I'm having a hard time finding information on how the OpenStack cloud controller ...
3
votes
0answers
238 views

Automating Configuration of VMware's vSwitch (OpenStack/libvirt/Nova)

There's a lot of talk now about VMware integrating with OpenStack now. I've noticed that Nova network service is working with VMware's standard and vDS. Deploying a full OpenStack instance is not ...
3
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1answer
280 views

Mounting whole-disk filesystems in Windows 2008?

I am booting a Windows instance in an OpenStack environment. OpenStack can use a "configuration drive" to pass information into the instance. This drive is formatted as a whole-disk MS-DOS ...
2
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1answer
1k views

Does OpenStack make sense for a home server? [closed]

I currently have a home server (HP N40L) running FreeNAS to provide my home with a few basic things like a file server, media streaming, and a few virtualized apps + a windows XP virtual desktop. It ...
2
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4answers
3k views

libvirt network error - no 'default' network device found

My original purpose is to create centos image for openstack. Although I did directly with kvm, still wondering about error. Was using this manual for my task. After this command: # virt-install ...
2
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3answers
5k views

Openstack: Making a windows 2008 R2 image with virtio support

When installing windows 2008 R2 in kvm on a virtio disk, it seems there is no support for drivers. Even after installing the drivers I wasn't able to install windows to the image. This because windows ...
2
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1answer
125 views

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 <instance_id> and then ...
2
votes
1answer
465 views

OpenStack, Windows 2012, DHCP and DNS

I'm trying to set up a Windows domain in virtual machines (VMs) instead inside of an OpenStack deployment. I've configured one of the VMs to be the domain controller (including DNS server), running ...
2
votes
1answer
2k views

Configuring trunk interface in Cisco 3750 switch to allow multiple Vlans connected with Ubuntu servers having a single NIC (sub-interfaced)

I have 3 Ubuntu servers (each having only 1 NIC) for my openstack cluster configuration following the guide of http://docwiki.cisco.com/wiki/Cisco_OpenStack_Edition:_Folsom_Manual_Install I also have ...
2
votes
1answer
2k views

Openstack multiple nodes: separate Glance and Keystone machines

I followed the guide on hastexo to create an OpenStack Cloud. The Keystone service and the are supposed to run on separate machines. However, when I wanted to run glance-api in the console for ...
2
votes
1answer
2k views

How to convert VirtualBox VM to OpenStack?

I'm running OpenStack in Ubuntu Server 11.10 (installation did using devstack script), but I have some virtual machines that are already running using VirtualBox. How can I convert the VirtualBox ...
2
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3answers
1k views

projects or packages to emulate a tape drive with a Amazon S3 or OpenStack Swift compatible backend?

I've got some data that is being backed up to tape via bacula, and at some point soon I am going to need to migrate to non-tape storage. Bacula supports to-disk archiving, but it occurred to me that ...
2
votes
1answer
809 views

Openstack Neutron stabilty problems

I have a fairly simple Openstack setup for a PoC. 2 nodes, both running Nova, and everything else on node 1. It is running CentOS 6 and was set up using RDO. Importantly I am using Neutron for the ...
2
votes
1answer
524 views

Static IP Addresses and OpenStack

I'm working within an environment where static IP addresses are the prescribed method. I have a set of IP addresses [about 10] and I'm trying to get that to be the pool of IPs that OpenStack can use. ...
2
votes
1answer
553 views

Ping responses to floating IPs do not reach the router (iptables/nat)

I'm running OpenStack, and I'm having trouble accessing my instances from floating IPs, from anywhere except the network controller node. I've got a Folsom deployment with FlatDHCP, not running ...
2
votes
1answer
446 views

Can't connect to instance via floating IPs, not natting/forwarding properly

I'm having trouble getting floating IPs to work properly on my OpenStack setup. It looks like the controller node (running nova-network) isn't forwarding the traffic to the instances. I've got a ...
2
votes
1answer
840 views

Object storage: when to choose OpenStack (Swift) vs. Ceph

Swift (OpenStack) and Ceph are both open source projects that implement object storage. What are the factors to consider when trying to decide which one to deploy? Under what scenarios would you ...
2
votes
1answer
68 views

Hosting websites in our Workplace custom-built datacentre

I'm faced with unique learning opportunity at work at the moment. Due to the slowdown (amongst other reasons), the powers that be at my office have decided to abandon our shared hosting providers ...
2
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3answers
2k views

Is it possible to notify a File[] resource in Puppet and trigger resources subscribed to that file?

We're using Puppet to manage an OpenStack installation. OpenStack consists of a number of loosely connected parts, all communicating via AMQP. Several of the parts use a common configuration file ...
2
votes
1answer
2k views

DHCP reply packets do not make it into KVM instance in OpenStack

I'm running a KVM instance inside of OpenStack, and it isn't getting an IP address from the DHCP server. Using tcpdump, I can see the request and reply packets on vnet0 of the compute host: # ...
2
votes
1answer
1k views

How do I install OpenStack on a single Ubuntu 12.04 node?

I'm having trouble installing OpenStack in Ubuntu 12.04, for various reasons: The official Ubuntu website recommends Juju and MAAS. However, this is a single node I am trying to get OpenStack ...
2
votes
3answers
1k views

OpenStack: Can I convert a volume into an image?

I am trying to figure out the path of least resistance in OpenStack to get from a live CD to a disk image that can be used for deploying new guest instances. If you boot an OpenStack instance from a ...
2
votes
0answers
42 views

Which openstack instance has a certain IP address

There are IPs on my network that are not configured as fixed or floating in Neutron, they are simply claimed by an instance (e.g. via ifconfig eth0:1 ip.add.re.ss). How do I get openstack (possibly ...
2
votes
0answers
345 views

cloud-init does not grow the partition nor the filesystem

I am currenty preparing OpenStack-ready images of CentOS 7 and Ubuntu 14.04. For the "automation" I use packer, which is provided by you with a json-template. Packer then starts the installation ...
2
votes
1answer
47 views

Finding exact amount of used RAM in OpenStack's web interface Horizon

In OpenStack's web interface Horizon I can see: Is there any way to have a more precise figure on how much RAM is being used? The best I have found so far is to look at the page source: but it ...
2
votes
2answers
759 views

openstack instances cannot access external network

I'm new to OpenStack. I'm using RDO packstack --allinone setup. All openstack nodes reside in one single machine, with only one physical ethernet interface (eth0, 192.168.0.11) I launched two ...
2
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0answers
113 views

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 ...
2
votes
0answers
620 views

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 ...
2
votes
1answer
64 views

Is the ethx mac address of a VM the same as the mac address of the corresponding tap interface?

I have a single node openstack install on an ubuntu machine. For some reason that I cannot figure out, the linuxbridge is dropping packets from this VM. My iptables seem to be fine (atleast as far as ...
2
votes
0answers
256 views

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 ...