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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OpenStack Mitaka - Instances have no net connectivity

I've followed the Mitaka setup guide for my first OpenStack cloud. This all went ok (2nd time around!), however i'm now having issues with networking. The instance launches ok, and it's assigned an ...
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6 views

Converting VMs from XenServer to OpenStack (KVM)

I'm looking at moving our XenServer cluster (150 VMs) to OpenStack on KVM. After extensive reading it looks like virt-v2v will do this. However I'm confused about it's usage. I was going to copy ...
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17 views

Setting dnsmasq_config_file with Puppet managed OpenStack installation

Our OpenStack installation is rolled out with Puppet. We use the excellent puppetlabs-openstack module for that. Due to the slow turnover cycles we are still stuck with version 5.0.2, right now we ...
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1answer
39 views

How to completely remove volumes/instances from OpenStack Kilo database

We're having some troubles deploying Kilo on a system with 3 controllers and 3 computes, through mirantis fuel 7.0. The problems involve creation and attaching of volumes, specially the ones stored ...
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1answer
13 views

QCOW2 virtual size lowering

I'm trying to get the virtual size of a qcow2 container down so that it can fit in a openstack flavor with 10GB disk. root@node-10:~# qemu-img info zztop.qcow image: zztop.qcow file format: qcow2 ...
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Having Trouble Understanding Affinity/Anti-Affinity in OpenStack

I am new to OpenStack and virtualization in general. I believe that if 2 VMs have "affinity" they will reside on the same compute node/hypervisor and if they have "anti-affinity" they will reside on ...
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1answer
52 views

Openstack Neutron - Connection Refused when Creating Instance - I'm Out of Ideas

I've setup OpenStack - my first time. I've followed the installation guide (on Ubuntu 14.04) and I believe I've got everything correct. However, when trying to create an instance I get the error: ...
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1answer
32 views

unable to install devstack on rhel 7

On RHEL 7 when I try to install devstack I get the following error. +tools/install_pip.sh:install_get_pip:79 sudo -H -E python /opt/stack/devstack/files/get-pip.py -c ...
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I haveinstall Liberty Openstack its successfully installed but after create instance its not getting internet [closed]

We have one controller and Two compute node of Liberty Openstack. Instance launched bu not getting Internet
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44 views

Nova Computer Service WIll Not Start: libvirtError: XML error: Missing CPU model name

I am having a problem with the Nova compute service not starting. I found tons of other people with this question, but nobody seems to have figured out the problem: systemctl status ...
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1answer
18 views

Missing credentials for roles in Heat orchestration on OpenStack?

I am trying out Heat orchestration on OpenStack. When setting up a single instance stack using the configuration below, I am getting this error: Error: ERROR: Missing required credential: roles ...
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15 views

NFS client latency spikes on KVM host machine

We run a small OpenStack environment with KVM hypervisors and shared NFS storage. The problem is: guest KVM machines' CPU usage spikes make NFS client latency grow. For example: same NFS volume ...
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34 views

openstack-ansible stuck on ssh

I'm being brave on deploying OpenStack using Ansible. Finally stage of punching commands except I'm running into ssh error. This seems to be either forked or customized ansible for OpenStack. In the ...
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49 views

Access Docker port from host's host

I've set up a simple "Hello world" node server on a docker container running on a Kubernetes pod running on Magnum on a virtual machine. I created the container so that its output is forwarded to a ...
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146 views

How to resolve UDP packets being dropped given netstat reporting SndbufErrors

I have a server instance on an OpenStack that at a pretty high load starts loosing UDP packets. I captured all outgoing packets using tcpdump and some of them are missing, even though application logs ...
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1answer
31 views

In OpenStack, what is the equivalent an Amazon AWS snapshot?

I'm an Amazon Web Services specialist. (AWS = Amazon's cloud computing platform.) I understand the workflow for taking backups in AWS. What's the equivalent in OpenStack, and is it as robust? Here is ...
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1answer
39 views

Multiple DNS records with different networks

So I have Ubuntu 14.04 VMs running in an OpenStack environmnet. The DNS machine has an external IP (10.14.6.3) and an internal IP (192.168.1.3). I have two other machines within the same project [h1] ...
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1answer
40 views

Openstack cluster for parallel execution?

I want to try Ubuntu OpenStack with Metal-as-a-Service (MaaS) for web application purposes. I would be using Apache2, PHP, MySQL and Postgres. If I got 5 or more machines setup and installed all ...
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1answer
160 views

Openstack: What the difference between nova migrate and nova evacuate?

On liberty, I've been searching for a way to "empty" a hypervisor from all its VMs. At the nova client docs, I've found the following commands related to this: nova evacuate : Evacuate server from ...
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1answer
47 views

VMware Integrated OpenStack with a single cluster

I'm currently in the process of deploying VMware Integrated OpenStack for a testing installation which will move into production later. In the current stage we have three ESXi hosts, more will be ...
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20 views

Ipsec one way traffic (libreswan / openstack)

'm currently trying to setup an IPSEC tunnel to allow communications between my on site subnet 192.168.1.0/24 and my openstack cloud subnet 192.168.4.0/24. To do so, I have a Debian jessie with ...
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15 views

OpenStack SingleNode on existing Infrastructure

We currently have one server which isn't needed for anything else, so we wanted to install an openstack single node configuration to get some hands on time. Everything is finde except for the external ...
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38 views

Create a VM image that's OpenStack compatible

I need to create a image of a CentOS VM which would be OpenStack compatible. I'm having trouble determining on Google what the requirements for OpenStack are. Can someone please help? My node is on ...
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1answer
92 views

Should I regard openstack cloud servers as just another type of virtualization?

If I were to set up physical servers for running a business critical website, I would absolutely build redundancy into that environment. I would strive for no single point of failure and as a minimum ...
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5 views

Mirantis Openstack mount storage from another

I have to increase storage size on my openstack. How to mount storage in the OpenStack from another machine or linux outside OpenStack?
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Does OpenStack (Nova) Support VM migration of LOCAL virtual disk images (not just Cinder)?

Using OpenStack (Nova) KVM instances, we periodically need to perform maintenance on the underlying bare metal. What's the easiest way (via command line or the OpenStack APIs) to clear all the VMs ...
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53 views

How to configure netflow on linux bridges(“docker0” Bridge)

I have Openstack setup which one of the compute node has docker and if I want to monitor the traffic, how to configure netflow on "docker0" bridge/Linux Bridge. I can see the bridge name and ID with ...
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13 views

OpenStack Swift: PID files don't correspond to running processes' PIDs; can't restart services - port already bound

I am running a Docker container with Swift ("Swift all-in-one") on a CentOS 7 host. I noticed that the PIDs in /var/run/swift/*.pid files differ from the actual PIDs running in the system: ...
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69 views

Internal Server Error (HTTP 500) when issuing an authentication token for OpenStack's demo user

Trying to install OpenStack on a VM (host Win10, guest UbuntuServer14.04.3) I'm following the installation guide (docs.openstack.org/liberty/install-guide-ubuntu). When trying to issue the ...
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58 views

Openstack on Ubuntu Server on Xenserver 6.5

I'm trying to install OpenStack on Ubuntu Server 14.04. Ubuntu server is a virtual machine on XenServer 6.5. When I try to install OpenStack: $ sudo openstack-install I get the following error ...
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1answer
77 views

Difference between cloud computing , grid computing and parallel computing [closed]

There are many definitions out there on the internet , but I am asking here , just because someone may answer it briefly from his/her practical experience with these technologies. How does cloud ...
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1answer
62 views

Duplicate host records in Foreman when VM is created by Foreman in OpenStack

I managed to connect Foreman and OpenStack, so that I can create VMs in OpenStack using Foreman web interface. I am using cloud-init, or how Foreman calls it, user data provisioning template in order ...
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1answer
57 views

Access service on subdomain in Kubernetes

I have following setup: Private OpenStack Cloud - o̲n̲l̲y̲ Web UI (Horizon) is accessible (API is restricted but maybe I could get access) I have used CoreOS with a setup of ...
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Error create VM in Glance in centos-7

I'm facing an issue while installing a VM in Glance-Openstack. Here it is [root@parkst ~(keystone)]# virt-install \ --name centos7 \ --ram 2048 \ --disk path=/var/kvm/images/centos7.img,format=qcow2 ...
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56 views

Authentication error in openStack's Horizon dashboard

I'm trying to setup an openStack controller from a VirtualBox VM. My VirtualBox host is Windows 10 and the guest is Ubuntu Server 14. The guest should (someday) function as an openStack controller, ...
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23 views

Connect Open vSwitch to interface in a VM OpenStack

I have single VM in OpenStack, with a single interface eth0. I want that all the traffic that goes in and out is passed trough a Open vSwitch (where I will have some flow rules). I did the following: ...
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112 views

Soft Lockup - CPU Stuck qemu-system-x86

I have a system running: * openstack icehouse * Linux 3.13.0-48-generic #80-Ubuntu SMP Thu Mar 12 11:16:15 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux(Ubuntu 3.13.0-48.80-generic 3.13.11-ckt16) Suddenly ...
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1answer
142 views

OpenStack: Create multiple instances using Horizon?

I have been reading up on deploying an OpenStack cluster in order to create a large number of instances. I haven't been able to find a script/blog/template guide on how to spin up 100+ instances at ...
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1answer
64 views

Can't install openstack kilo, stuck on keystone installation

I'm following this guide to install a testing instance of OpenStack Kilo with a very basic environment in a VirtualBox machine running Ubuntu server 14.04 x64. I've managed to get to the point where ...
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1answer
189 views

(centOS) cloud-init not pulling ssh

Trying to build CentOS 6 qcow2 image with OpenStack guide[http://docs.openstack.org/image-guide/content/centos-image.html]. I'm using "cloud-init" instead of the "/etc/rc.d/rc.local" script but I ...
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2answers
66 views

OpenStack Juno: Is it possible to keep instance on same compute host after resizing?

I have OpenStack Juno setup with 1 controller and 3 compute nodes. I have enabled password less authentication between compute nodes for re-sizing to work. Instance re-sizing is working fine up till ...
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2answers
30 views

Alternative ways to detect hung OpenStack/Linux services?

I have noticed on some of my linux servers that a linux service will be hung. The only way I know that it is hung is operations that rely on the service fails and when I restart the service it fails ...
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1answer
195 views

Nova network DHCP not releasing ip with force_dhcp_release=True

The problem I am seeing is that when nova-network calls dhcprelease upon instance termination (due to forcedhcp_release=True) the address is not always released(syslog are not showing DHCPRELEASE ...
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136 views

In OpenStack dashboard, I cannot create new images

I cannot create an image using the dashboard, but I can delete images using the dashboard. I can create new images using Glance from the command line. But in Horizon, as soon as I click the "Create ...
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1answer
32 views

Trouble accessing VM console OpenStack Juno

I have set up a Juno deployment of OpenStack. I can launch my cirros image: [root@ost-mgmt-el7-001 ~]# nova list +-----------+----------+--------+------------+-------------+------------------------+ ...
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129 views

Openstack - neutron l3 agent - RNETLINK: network is unrecheable

I have Openstack deployed on a single dedicat server. When I try to lunch neutron l3 agent, it will fails with the following message: 2015-09-28 09:58:40.780 29841 ERROR neutron.agent.l3.agent [-] ...
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1answer
97 views

Windows port forwarding, local machine to server

I'm working on Windows 8. I'm trying to connect to an OpenStack cloud which is hosted on a remote server but has a public IP to the API. However, making API calls require calls to additional services ...
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2answers
334 views

What is reasonable storage failover time that most OS (VM) can tolerate?

I have a GlusterFS 2 node 2 replica setup. I am planning to use it as OpenStack instance store, in which the VM disk image is stored. From my tests, if the GlusterFS node which the hypervisor ...
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0answers
69 views

noVNC console on Openstack Dashboard is rendering garbled UI on RHEL7

I am running nova-compute on RHEL7. Openstack dashboard's noVNC console is rendering garbled UI for any instance having a UI console. Can somebody please help out? This is working just fine on RHEL65 ...
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85 views

How can i set up Dynamic DNS updates for servers running on openstack with floating IPs?

I have an openstack deployment running in the company LAN. It's segregated internally into projects for the various departments with internal LANs for each project, and floating IP allocation is ...