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Questions tagged [openstack-nova]

Openstack's Compute is a component that can be used to host and manage systems

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Instances in openstack status error and it says no valid host was found

I have tried many times to launch instances, but it keeps failing due to the fault error, saying no valid host was found. Keep following the tutorial on youtube, but it didn't work. Message No valid ...
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Openstack nova terminating guest vms with oom_kill

I am running an openstack Victoria with Kolla ansible deployment , all components are containerised . The compute node is (oom_kill) killing guest when the memory is max out , is there a way to avoid ...
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Can not login to server by password set in user_data

When I create server by api and set the user_data, the server is created successfully without any errors. However, I have incorrect login. The user_data is generated like below in php. base64_encode('#...
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How to have node affinity in openstack?

For Example, I have 3 Compute servers and I want to have 1 Specific Instance on each of them and I want to have Node Affinity on them. instance_1 --> compute_node_1 (Always on this node) ...
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openstack xena- extend boot volume which is attached to an instance through heat orchestrator

as you can see the below heat template { "heat_template_version": "2018-03-02", "description": "H2 Template: All infrastructure is\n created using this, except ...
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Openstack, Is there any characters that should be concern when creating cloud-init config

So I got a task where I have to create instance of server for the user with their own password. So I did a simple by creating a config template and replace the password field with their request ...
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kolla ansible deployment stuck at Nova API bootstrap container

I am deploying openstack (for kypo cyber range) using kolla-ansible. I have followed all the steps on official guide. However I am stuck on Nova API bootstrap container for almost half a day. I have ...
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Incorrect ressource allocation on OpenStack

In our cluster, we have 4 computes running and we have an issue with the number 4. We can't create VMs on it, we can't migrate VMs to or from that node. VMs are still perfectly working though. After a ...
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Openstack Victoria : Instance failed to create virtual interface

I installed the proof of concept architecture from the install guide with option 2 selfservice network. Everything went well, the last step before creating instance was ok :I can ping the router from ...
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Attaching new network after instance creation causes DOWN network device status

When creating a new instance, the attached network interfaces work normally as checked by logging into the instance and using ip addr. The IP addresses set to the network devices are the expected ...
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Openstack ( using libvirt image type as LVM )- Very low IOPS

As part of the base line testing, able to see qcow is providing much higher iops compare to the LVM. Ideally it should be the reverse ( as per my knowledge gathering ) Kindly please advise me on how ...
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Openstack Nova and Ceph Volume Attachment Issue

I am trying out the volume attachment function at Openstack (version:wallaby) to the server as additional device but failed. The volume backend is ceph which all of the osds are up and healthy. ceph-...
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how openstack resize instance with raw format's local disk

Instance using local disk, the configure file: nova-compute/nova.conf [libvirt] images_type = qcow2 execute openstack server resize works well. but when using raw [libvirt] images_type = raw the ...
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Is there a way to access my OpenStack instance without floating IP?

It seems theoretically possible for me to ssh to my instance in OpenStack through credentials and instance id/network IP(Not floating IP) etc. Is it possible, am I missing something? Is it simply a ...
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How to use hosts with no storage disks and virtual machine instances with no local drive in Openstack

In Openstack, is it possible to create compute nodes with no hard drives and use PXE in order to boot the host's system and therefore launch instances with no local drive which is needed to boot the ...
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ipv6 issue after upgrade to victoria/ubuntu 20.04

i'm in charge of a small r&d cluster that is currently running with 1 mixed control/infra/compute node(formerly "all in one" stack), 1 storage node and 1 compute node. The cluster was ...
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MySQL ERROR 1045 Access denied for 'nova'@'controller'

Description I installed Openstack Wallaby using OpenStack Installation Guide, all command and configuration is on my Github. This LAB is running on VirtualBox and I have another LAB with the same ...
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Can openstack compute be deployed as nested kvm VM for testing purpose?

Just for testing and learning purpose, can openstack compute nodes be deployed as VM with nested-kvm? I tried to do so with Train version of openstack, but I got this errors : 2021-08-17 14:48:51.039 ...
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Openstack Victoria SPICE configuration not working

Running openstack on Ubuntu 20.04 with a controller node and four compute nodes. I am reading the instructions on configuring SPICE here. I will admit, I found out about which packages to install from ...
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Migrate instances/volumes between availability zones

In my OpenStack setup (RDO, Victoria) there is 2 availability zones - every AZ is a separate datacenter. In every availability zone I have a storage-node with FC-backend. Part of cinder config: AZ1: [...
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Openstack : Internet connection loss on the instance when openvswitch port updated

I use the Openstack Ocata and have the internet connection loss problem in the instance. I found the log of neutron-openvswitch-agent.log as below when the internet connection loss in the instance, ...
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How do I add floating IPs to my ansible Openstack deployment?

So, I successfully deployed openstack with two interfaces. One having an external IP (Which I use to connect to my openstack deployment) and another dummy interface with only an internal network IP (...
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How do you log in to an OpenStack VM during rescue operation?

I have a CentOS 8 VM with a corrupt filesystem and I want to recover data by rescuing it. I ran openstack server rescue --password somestring myserver. However, when I tried to log in to the VM by ...
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openstack server uptime api

How can I get the usage time i.e., uptime of the server? I have used this link. However, it does not show me the uptime in nova version 2.1. In addition, the cpu_time changes from 25420000000 to ...
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Not able to assign higher vcpu on single openstack instance

I have a compute node with 24 cores and 96GB of RAM. I am trying create an Instance with 48 cores/64GB of RAM but getting error " Failed to schedule instances: nova.exception_Remote....
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Openstack only building one VM per machine in cluster, then runs out of resources

I am building an openstack cluster and am having some issues with what I think may be a quota problem. I can successfully build vms on every host, but only one vm per host. I deployed the system using ...
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Rebuild of volume-backed server

I create a volume then I use it to create server. I would like to rebuild this server such that its image is changed. When I call nova rebuild api with a new image, it is said: Image c1d9.... is ...
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(Solved) How to setup aodh and heat to auto scale in openstack victoria based on cpu usage?

As the metric cpu_util is now deprecated, how can someone use heat to auto scale up and down using cpu usage of the instance? Any insight is appreciated. Edited: We used to have transformers that did ...
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OpenStack Slowness on Centos Stream

I just deployed a new cluster of Openstack Victoria using PackStack on Centos Stream, same hardware but for some reason this new cluster runs terribly slow, from the dashboard to the actual instances (...
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difference between creating server via nova and heat [closed]

What are the pros and cons of creating server via nova and heat stack? When should we use nova and when we should use heat?
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Openstack- unable to login from snapshot instance

I took a snapshot from one instance in an openstack and put the snapshot as image in another openstack deployment, then tried to run it on a flavor that has greater hardware than required. Everything ...
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Cannot create an instance due to failed binding

I'm deploying openstack on 3 nodes (controller, compute and block storage). Each of my nodes have 2 attachements eno1 on the management network and eno2 on a provider network (192.168.3.0/24). I'm ...
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containerized Openstack services

I have a difficulties in the following question: "Does it make sense to containerized/dockerize the openstack controlling services like Neurtron/Cinder/Glance/Keystone server services (neutron-...
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What is the best way to repair a situation where the nova database contains an attachment, but cinder doesn't?

In our OpenStack cloud there are a server with server_id and a volume with <volume_id>. We are in a situation where there is a volume that appears to be attached from the perspective of Nova, ...
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OpenStack-Ansible: Troubleshooting instance not seeing attached volume

I've been working with OpenStack-Ansible 22.0.1 and have successfully brought up a controller node and a compute node with LVM storage that, on the surface, functions. I can now create an instance and ...
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Resize server succeed but not applied

I would like to resize the server via this api. It returns 202 but the flavor is not applied. Its status is not changed to VERIFY_RESIZE. The status is Active. I also tried it with SHUTOFF status. The ...
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Update instance and flavor

How can I update flavor and image of an instance? It is not possible with this api. As another question, how can I update ram, disk and vcpu of the flavor?
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openstack using name instead of id

Can I use name instead of id for openstack api such as show instance? When I send server name in the url, I got 404. Is there any way to get the id of the instance by means of its name?
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Openstack change IP address of compute node, controller will not change

Ran into some trouble... when installing more compute nodes, I acidentially left the local_ip located in /etc/neutron/plugins/ml2/linuxbridge_agent.ini the same for the additional compute nodes. Now a ...
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item not found in create server console

I would like to create server console. It has the below error. {"itemNotFound":{"code":404,"message":"The resource could not be found."} I send request to :...
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Installing OpenStack Kilo in a modern OS

I'm trying to run a legacy code written for OpenStack Kilo, in order to migrate it to newer versions of OpenStack. I mostly need Nova, Neutron and Placement of that version in order to test the code. ...
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required fileds in create server

which fields are required in creating server for v2.1? I send these data but it has the below error. {"computeFault":{"code":500,"message":"Unexpected API Error. ...
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1 answer
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OpenStack API returns no server details

I cannot see the detail of servers when I send request to /servers/detail via port 8774. I get the response same as the /servers. In both request I get the 300 status code. It returns a list of ...
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1 answer
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LUKS encryption for mounted disk - how to decrypt cinder volume

I have a question about the possible decryption of LUKS volume. I'm testing currently barbican+cinder, but I'm just wondering if there is a way, to somehow decrypt my LUKS volume with payload ...
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Keystone scopes behavior is inconsistent between nova and cinder

I've been trying to update our OpenStack installation to use new options enforce_new_defaults and enforce_scope since in Wallaby for nova old policies will be deprecated. Those option seem to be ...
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New compute node with openstack base bundle

In my scenario which is deployed with maas and juju, I have a network 10.10.10.0/24 which is used to deploy openstack base churm bundle. Also the maas and juju are within this network/subnet. Recently ...
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openstack instance migration is failing

OpenStack migration is failing between two hosts. Using OpenStack Ussuri. Both hosts have VMs running on them and are able to host new VMs. Both hosts appear up and available in the compute service ...
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3 votes
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How to provision baremetal kuberenetes cluster using magnum with only one vlan?

There does not seem to be a guide that follows through on how to deploy a baremetal Kubernetes cluster using magnum. I got to the point of having the baremetal servers turn on and initiate the pxe ...
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Openstack VM build fails with error

I have installed OpenStack Victoria according to the official guide https://docs.openstack.org/install-guide/index.html But if I now start a VM into the public network it fails with an error. The log ...
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AttributeError: module 'openstack.proxy' has no attribute 'Proxy'

I'm runing an Ussuri install on openSUSE 15.2. According the official install guide, the Keystone, Glance, and Placemente has run withou any bigger issues. But, when i try run any command with nova-...
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