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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 backends.

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23 views

How to expand the root volume after attach new volume?

I create new virtual machine in OpenStack Project. After I want to add size free space in VM. I added new Volume and attached to VM. After start VM I tryed to check status HDD. fdisk -l Disk /dev/...
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23 views

How migrate from Openstack KVM VM to KVM

I have one VM in Openstack that VM in qcow format . I want to migrate it to another datacenter KVM VM machine but it supports ISO file.
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1answer
30 views

Difference between openstack keypair create and ssh-keygen

I want to understand how exactly does the openstack keypair create command differs from ssh-keygen(both create a keypair ,right?). Also, what exactly happens when I provide a public key to the ...
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18 views

openstack keystone and kerberos

I have integrated the openstack and kerberos using the link provided here : https://www.jamielennox.net/blog/2015/02/12/step-by-step-kerberized-keystone/ It is successfully installed and I am able to ...
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1answer
71 views

Can the timeout of conjure-up/juju operations be configured?

I'm trying to install OpenStack with NovaLXD on localhost via conjure-up and it keeps timing out... (at home for dev/learning purposes) My hardware is ancient... it's an old Dell poweredge 2850 (...
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1answer
65 views

Partitioning existing LVM physical volume and Create new LVM physical volume

My goal is to create new LVM physical volume named sda3. I installed the Centos 7.5 in such partitioning: Device Boot Start End Blocks Id System /dev/sda1 * 2048 ...
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0answers
38 views

Nested Virtualization [closed]

I want to deploy openstack with nested virtualization enabled. Here is the scenario, on physical machine (Ubuntu 16.04) I have 2 VMs running, 1. kvm01 and, 2. cmp001 Kvm01: has 7 VMs up and running ...
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1answer
175 views

openstack modify libvirt xml configuration

I am experimenting some options and trying to ad following option in openstack running instance. <driver name='vhost' queues='5' rx_queue_size='512' tx_queue_size='512'/> I did following steps ...
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0answers
104 views

Openstack instance packet drop on tap interface

I am seeing packet drops on openstack instance which is using qemu for hypervisor. I have noticed drops on TX interface and based on documentation I have increased txqueue length from 1000 to 10000 ...
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1answer
125 views

How to ssh into CentOS instance on Openstack with pregenerated PEM private key using Cygwin

I am missing something simple here. Can someone help determine why I can't ssh into this remote CentOS instance on Openstack using the pre-generated private key. I created a public/private key in ...
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1answer
105 views

openstack live migration issue

I have two compute node1 and node2 with Ceph shared storage (RBD), I am trying to setup live migration but its failing with following error, not sure what is wrong. I am using Openstack pike 16.0.16 ...
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0answers
764 views

Creating VLAN Bridge for KVM Virtual Machines

Original Question: I need to run a KVM based VM with a few VLANs going through a single vNIC. How to create a bridge on a Ubuntu/CentOS host machine that can handle VLAN tagged traffic (i.e. ...
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0answers
51 views

Bridge connection in openstack installation

Here is my topology used for multi node openstack installation, (192.168.140.36)-enp2s0[cntrlr]enp3s4-(10.10.0.20)------------(10.10.0.10)-eno1-[compute]enp1s0(192.168.140.24) I have a multinode ...
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0answers
67 views

Openstack tripleO deployment (disable swift)

In a particular context we would avoid swift to be installed at openstack deployment. (newton version level (currently) & above) I didn't find any solution from the openstack Newton swift ...
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0answers
43 views

Build of instance is aborted: block device mapping is incorrect

I want to create a cluster using the Red Hat OpenStack Platform 18. I already specified the network, security groups, key pair and floating IPs. However when I try to create the first instance, I get ...
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1answer
114 views

Script fails and says unexpected token >' [duplicate]

While running the following script, I get the errors. How to solve this? 1 #!/bin/bash 2 # Show colored output if running interactively 3 if [ -t 1 ] ; then 4 export ANSIBLE_FORCE_COLOR=...
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0answers
109 views

Customizing VM Settings - fails during tripleo installation in Centos

[stack@localhost ~]$ sudo cp CentOS-7-x86_64-GenericCloud.qcow2 /var/lib/libvirt/images/undercloud.qcow2 [stack@localhost ~]$ sudo qemu-img resize /var/lib/libvirt/images/undercloud.qcow2 +120G Image ...
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2answers
1k views

Permission denied (publickey) on ubuntu 16.04

$ ssh mykey.pem ubuntu@10.128.2.7 -v OpenSSH_7.3p1, OpenSSL 1.0.2j 26 Sep 2016 debug1: Reading configuration data /c/Users/works/.ssh/config debug1: Reading configuration data /etc/ssh/ssh_config ...
3
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0answers
202 views

How I can improve openstack swift replication speed?

I am using openstack object storage in my production, and faced with big problem - low replication speed. I have cluster with replication factor 3, with 3 zones and 25 hdds per zone. My container ...
0
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1answer
291 views

Passwordless SSH using pem file or ppk file not working anymore

I have an instance on OpenStack installed with CentOS-7-x86_64 that is accessed using putty, the pem file which was converted to ppk file using the puttygen, worked fine and provided passwordless ...
2
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2answers
592 views

Error during installation over pip

I am tring to install openstack client on Centos 7 virtual machines over pip via this command: pip install python-openstackclient At the end of installation I receive this error: Command "/usr/bin/...
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1answer
535 views

“Network unreachable” after adding ovs bridge

I'm deploying openstack cloud on centos 7 and during installation, I'd added an external bridge to one of my interfaces that is connected to the internet by using these commands: $ ovs-vsctl add-br ...
1
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1answer
2k views

traceroute have error bind: Cannot assign requested address

I have the below error: [root@~]# traceroute -s 'publicIP' 8.8.8.8 traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets **bind: Cannot assign requested address** But when i did not enter ...
1
vote
1answer
18 views

yumdownloder option required for only 64bit packages

What would be the command if I want to download only 64bit rpm of the packages via the yumdownloader command? Example : I have 64bit arch centos6.5 and i want to upgrade some of the packages thourgh ...
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2answers
3k views

Script in cron cannot find command

I have a script which dumps out database and uploads the SQL file to Swift. I've run into the issue where the script runs fine in terminal but fails in cron. A bit of debugging and I found that the ...
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0answers
419 views

creating multiple server & attaching volume in openstack

i need to deploy multiple server using Heat template in openstack mitaka, and also this server should have newly created cinder volumes and they should get attached at server creation time, i.e one ...
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1answer
222 views

Why does /proc/cpuinfo list 0 cores in processor 1 on Openstack?

I create a VM with Openstack Ocata. When I use the command cat /proc/cpuinfo, it shows messages: processor : 0 physical id : 0 siblings : 1 core id : 0 cpu cores : 1 processor : 1 physical id : 0 ...
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2answers
194 views

sed? - Insert line after a string with special characters to Neutron service

I am attempting to write a bash script that will insert a string after matching on a string in /usr/lib/systemd/system/neutron-server.service I have been able to do this on other files easily as I ...
0
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1answer
323 views

How can I config the floating IP to a public ip in OpenStack?

In the dashboard: Under the Project -> Compute -> Instances: I created a instance, named test02, and its IP address is 10.0.0.7 and the floating IP is 172.24.4.12. I want to know can I config the ...
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0answers
298 views

Error: Package: python-netifaces-0.10.4-1.el7.x86_64 (openstack-ocata) Requires: python(abi) = 2.7 when I install the `packstack`

When I install the packstack: sudo yum install -y openstack-packstack I get the below errors: Error: Package: python-netifaces-0.10.4-1.el7.x86_64 (openstack-ocata) Requires: python(abi) ...
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1answer
100 views

Use a different NIC with packstack

I'm installing openstack in VirtualBox, The VM has two NICs, a NAT one and a Host-Only one. Looks like packstack automatically selected the NAT one, which is unwanted. 10.0.2.15_prescript.pp: ...
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1answer
136 views

Extend OpenStack Volume

I am trying to extend a Volume in an OpenStack instance abd checked the docs from openstack . But there is no extending documented. Managing with lvm is not really possible. Do you have an idea how ...
1
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1answer
449 views

Multiple puppetmaster behind load balancer

We build two puppet master on openstack cloud and put them behind LBaasV2 (haproxy) load balancer, also we have separate puppetDB and PuppetCA server to handle certificate. |-...
1
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0answers
272 views

Virtual Lab on a server. What hypervisor? Proxmox, OpenStack, ESXi?

I would like to run a virtual lab to show a piece of software - imagine 10 students, each using 3 VMs (somehow students shouldn't be able to touch each other's machines). It's going to be a small ...
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0answers
870 views

How to create an OVS Bridge in centos (Openstack) ipv6 interface

I am trying to create an ovs bridge network for openstack(packstack) . I am encountering an issue as per documentation i need to create interface as shown below. /etc/sysconfig/network-scripts/ifcfg-...
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2answers
2k views

ethtool with virtual NIC shows nothing - print the current settings of the NIC in OpenStack VM

On a OpenStack VM I see only # ethtool eth0 Settings for eth0: Link detected: yes On RHEV VM the same small output. Tried it on Ubuntu and RHEL7 VM. I wish to see something like (the speed ...
1
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1answer
687 views

Multiple VLAN range on Liberty Openstack

We have 3 VLAN (10,20 & 30) in our physical network on Liberty so how do i define three VLAN set in my configuration should i do following in ml2 plugin? is following method is right? /etc/...
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2answers
150 views

Live migration of VMs in openstack

Is it possible to live migrate a virtual machine running on KVM host to Hyper-V based host in open-stack?
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1answer
66 views

Ubuntu 14.04 Openstack single, error: Top-level container OS did not initialize correctly

I install fresh copy of Ubuntu server 14.04 x64 on my laptop ram:16GB, i7 quadcore, ssd:1TB. etc. I follow this instruction to install openstack as single on my laptop ubuntu user have sudo ...
0
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1answer
173 views

port forwarding VBox VMs [closed]

I have an Ubuntu Server 14.04 running VirtualBox with some machines. These machines are OpenStack Fuel installed and I cannot change the NIC interfaces infra ( two hostonly and one NAT ). One of ...
0
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1answer
393 views

Can't see floating IP within Virtual machine

When we spin a VM in cloud based environment ( in my case , open-stack) , and assign it a floating ip to access it from outside , we can't see that IP with standard Linux commands for networking, ...
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2answers
1k views

Authentication error in openstack with new domain

My openstack was working fine with the default domain. Today I created another domain domainTwo using openstack create doamin domainTwo created a new project domainTwoProject openstack project ...
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0answers
186 views

Remove devstack dependencies Ununtu 14.04 (32 Bit Dell Lattitude 5500)

I installed devstack in my old laptop. After installation when I try to access OpenStack, my laptop became very slow. Then I realized, that laptop had only 2 GB RAM. I ran unstack.sh and delete ...
0
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1answer
710 views

Nova instance missing after reboot

I had an instance today which appeared to be stuck booting, I did a hard reboot and then the hypervisor lost power. After turning back on the instance was still in hard reboot, however it appears ...
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0answers
288 views

DNS problem with ipv6 on centos6

I have a couple of open-stack instances that communicates with github.com. When any of these machines reboots , the file /etc/resolv.conf gets the ipv6 addresses of my DNS servers. Everything still ...
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1answer
2k views

using puppet to format a disk/volume

When I provision a new virtual machine with centos6, it does most of the configuration through puppet. But I have to manually run the command #mkfs.ext4 /dev/vdc to format /dev/vdc. Is there any way ...
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1answer
91 views

Puppet agent certificate error after rebuilding openstack instance

I have an open-stack instance vm , and puppet agent was working fine on it. By running the command puppet agent -t, it was good. But for some reason i had to rebuild the instance by using the open-...
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0answers
49 views

Couldn't mount nfs shares with more than four files

I am trying to mount a remote NFS share on open-stack cloud instance. I am able to mount the NFS share with fewer than five files , but if the number and size of files increase , then it fails to ...
5
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1answer
274 views

GRUB Legacy complaining about filesystem being unknown?

I have several VM's in an OpenStack cluster (KVM) and when they get built from an image that had say a single 5GB partition they too will have this same HDD geometry configured. I've found several ...
0
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1answer
573 views

How to upgrade Open VSwitch in openStack Kilo

I'm using OVS integrated with OpenStack Neutron. OVS' version that I use is 2.3.2 and I want to upgrade it to the latest version released in Sep 2015. I tried to upgrade it by entering "apt-get ...