OPENSTACK linux-bridge agent - openstack

Following the installation guide for Newton on Ubuntu Server 16.04 LTS, when I run openstack network agent list on the controller, I see the DHCP agent and the metadata agent, but the linuxbridge agent doesn't show up on either the controller node nor on the compute node.here is
What I am supposed to have :
what i actually have :

Related

OpenStack-Devstack: Can't create instances using KVM on host

I have a Dockerize installation from Devstack all-in-one on Ubuntu 20.04. The goal for me is to connect to the host's KVM and create instances there. Nova was configured as follows for this purpose.
#/etc/nova/nova.conf
#/etc/nova/nova-cpu.conf
[libvirt]
connection_uri = qemu+ssh://root#172.10.1.1/system
When I try to build the instance, I get the following error.
Build of instance cdd6f8b4-6dcf-4a43-b96a-fb6166b20235 aborted: Failed to allocate the network(s), not rescheduling.
ovs-vsctl commands cause the error. What is the problem? Does this need to be done differently?

Integration Ovirt and openstack, But got MTU interface error message

I want to manage Ovirt VM's network by openstack neutron(OVN).
My setup:
oVirt v4.4.10 (created one VM names: vm1)
Openstack victoria (5.4.0)
My steps:
created network 'vlan-1' at openstack dashboard network page.
created provider 'neutron' and select openstack networking type
import network 'vlan-1' from 'neutron' provider.
create nic1 in vm1 and selected network 'vlan-1'
run vm1.
But vm1 start failed, The engine.log shows:
2022-11-02 12:05:17,674+08 WARN [org.ovirt.engine.core.bll.provider.network.openstack.BaseNetworkProviderProxy] (EE-ManagedThreadFactory-engine-Thread-11256) [a0d16d0c-f5df-4992-808f-0095daff628a]
Host binding id for external network vlan-1 on host ovn-comp-nodes is null, using host id 192.168.3.215 to allocate vNIC nic1 instead. Please provide an after_get_caps hook for the plugin type OPEN_VSWITCH on host ovn-comp-nodes
2022-11-02 12:05:23,180+08 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (ForkJoinPool-1-worker-21) [6f97b9be] EVENT_ID: VM_DOWN_ERROR(119), VM ovn-comp-node1 is down with error. Exit message:
Cannot get interface MTU on 'vlan-1': No such device.
I am reading Ovirt's source code but still can't found the reason...

after insalling devstack http://server-ip:5000 not accessible

I followed https://www.theurbanpenguin.com/installing-devstack-on-ubuntu-16-04/ tutorial to install devstack(queens release) on my Ubuntu 16.04 server.
After the installation was done I ran the following commands
export OS_USERNAME=admin
export OS_TENANT_NAME=admin
export OS_PASSWORD=<password>
export OS_AUTH_URL=http://server-ip:5000/v2.0
openstack image create --public --disk-format qcow2 --container-format bare --file /home/cse3/ubuntu_images/ubuntu-14.04-server-cloudimg-amd64-disk1.img ubuntu
But whenever I open http://server-ip:5000/v2.0 in my browser I am getting unable to connect error.
When I create an image from the command line I get the following message
Failed to discover available identity versions when contacting http://server-ip:5000/v2.0. Attempting to parse version from URL.
Unable to establish connection to http://server-ip:5000/v2.0/tokens: HTTPConnectionPool(host='server-ip', port=5000): Max retries exceeded with url: /v2.0/tokens (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f84ebecabd0>: Failed to establish a new connection: [Errno 111] Connection refused',))
Can anyone suggest what steps need to be followed to remove this error?
After installing the Devstack, you should be able to view the OpenStack dashboard at http://server-ip if the server-ip is a public IP. The AUTH_URL is for you to authorize the API when you are using the SDK or the client library. And this is actually how the dashboard (Horizon) works with the Keystone identity service.
If the server_ip is not a public IP, you need to set up a proxy port in your server and your browser.
It's because the identity API changed from
export OS_AUTH_URL=http://server-ip:5000/v2.0
to
export OS_AUTH_URL=http://server-ip/identity
You can get more from the OpenStack Doc
Check your httpd is running
systemctl status httpd
If it is exited or not started .
Enable the httpd
systemctk s

Error on configuring Devstack compute nodes: Service n-net is not running

While installing Devstack on a compute node in a multi-node devstack lab environment error encountered: Service n-net is not running.
The local.conf file has localrc as:
HOST_IP=192.168.42.12 # change this per compute node
FLAT_INTERFACE=eth0
FIXED_RANGE=10.4.128.0/20
FIXED_NETWORK_SIZE=4096
FLOATING_RANGE=192.168.42.128/25
MULTI_HOST=1
LOGFILE=/opt/stack/logs/stack.sh.log
ADMIN_PASSWORD=labstack
DATABASE_PASSWORD=supersecret
RABBIT_PASSWORD=supersecret
SERVICE_PASSWORD=supersecret
DATABASE_TYPE=mysql
SERVICE_HOST=192.168.42.11
MYSQL_HOST=$SERVICE_HOST
RABBIT_HOST=$SERVICE_HOST
GLANCE_HOSTPORT=$SERVICE_HOST:9292
ENABLED_SERVICES=n-cpu,n-net,n-api-meta,c-vol
NOVA_VNC_ENABLED=True
NOVNCPROXY_URL="http://$SERVICE_HOST:6080/vnc_auto.html"
VNCSERVER_LISTEN=$HOST_IP
VNCSERVER_PROXYCLIENT_ADDRESS=$VNCSERVER_LISTEN
Please help me removing this error.
P.S: I must use nova-net and not neutron for interaction between the controller and the compute nodes.
For the Ocata release I founded a solution (2-node setup). An import part is the placement-api since the Newton update (14.0.0), so first of all enable this in all your nodes:
local.conf:
enable_service placement-api
First run ./stack.sh on your controller node and after that installation run it on the other nodes.
Also here you will see the error Service n-net is not running...
Now edit your nova.conf file in /etc/nova/nova.conf because there will be no database and database_api section:
[database]
connection=mysql+pymysql://root:DB_PASS#IP_OF_CONTROLLER_NODE/nova
[api_database]
connection=mysql+pymysql://root:DB_PASS#IP_OF_CONTROLLER_NODE/nova_api
When adding these, you can check if it works with following command:
stack#jerico-02:/devstack$ nova-manage --debug host list
host zone
0.0.0.0 internal
jerico-03 internal
jerico-02 nova
Also in the dashboard the new compute (hypervisor) shows up!
Hope it helps!
(Tested on Ubuntu Server 16.04 LTS with devstack and OpenStack Ocata)

failed to launch Openstack instance: 'authentication required' when trying to create port

I'm trying to deploy Openstack Icehouse on Ubuntu Server 14.04 by following the official document. But after Keystone\Nova\Neutron\Glance were deployed, when I tried to launch a CirrOS instance by
nova boot -nic ... -image ... -flavor ...
, it failed.
The log in Nova client shows that:
The Neutron client(Yes, it's neutron. I guess there are interactions between them in booting) tried to connect with Neutron server to create a port on tenant's network.
But Neutron client set up the token-getting request using {username:neutron, password:REDACTED} to Keystone server and used that token to request for creating port to Neutron server.
Finally, the Neutron Server decided that that's an authentication problem.
I'm sure that I requested to create instance using tenant 'demo''s info($OS_TENANT_NAME, $OS_USERNAME, $OS_PASSWORD, $OS_AUTH_URL were properly set with 'demo''s value) by
source demoopenrc.sh
with demo's credential in that file.
Is that something wrong in the Neutron client's configuration or booting process? I paste a part of the neutron.conf here:
the Keystone setting
[keystone_authtoken]
auth_uri = http://controller:5000
auth_host = controller
auth_port = 35357
auth_protocol = http
admin_tenant_name = service
admin_user = neutron
admin_password = neutronpass
signing_dir = $state_path/keystone-signing
Since the Neutron client used 'neutron' user's credential for token getting, is there something wrong in this part?
The problem has been solved after nearly a month. For anyone still interested in this problem, please visit here

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