Table of Contents
In part-1, we have seen how to deploy OpenStack through kolla-ansible. In this blog, we will test our installation and run our first testing virtual machine.
Container testing
In the deployment phase when you are done with installation. You will see the below-mentioned output. That means your installation has been done.
PLAY RECAP ****************************************************************************************** ubuntu-exp : ok=259 changed=151 unreachable=0 failed=0 skipped=121 rescued=0 ignored=0
Now check all the containers, are they up and running, and make sure do you have all the containers there which you enabled in globals.yml.
Use the command to check the container.
(wallaby) ubuntu@ubuntu-exp:~$ sudo docker ps -a
The command output will look like this 🙂
Installing Openstack client and dependencies
For running commands from our terminal, we need to install the OpenStack client and its dependencies. So that in the future we can test and manage our deployment from CLI.
(wallaby) ubuntu@ubuntu-exp:~$ pip install python-openstackclient
Evaluation
Create an admin-openrc file that basically contains admin credentials and some important environment variables. Use the following command to create admin-openrc.sh file.
(wallaby) ubuntu@ubuntu-exp:~$ kolla-ansible post-deploy /etc/kolla/admin-openrc.sh
For evaluation, we will be going to run init-runonce initialize script. Which comes with Kolla ansible. This script will create example networks, images, flavors etc. Usually this script would be in your kolla-ansible folder.
(wallaby) ubuntu@ubuntu-exp:~/wallaby/share/kolla-ansible$ ls ansible doc etc_examples init-runonce init-vpn setup.cfg tools
Before running this script source the admin credentials and run this script.
(wallaby) ubuntu@ubuntu-exp:~/wallaby/share_back/kolla-ansible$ source /etc/kolla/admin-openrc.sh (wallaby) ubuntu@ubuntu-exp:~/wallaby/share_back/kolla-ansible$ (wallaby) ubuntu@ubuntu-exp:~/wallaby/share_back/kolla-ansible$ ./init-runonce
You can use GUI for managing your OpenStack. I used the same credentials which is in admin-openrc.sh file to log in as an admin.
Testing
Create a VM
Create the VM by using the following command.
(wallaby) ubuntu@ubuntu-exp:~/wallaby/share_back/kolla-ansible$ openstack server create \ > --image cirros \ > --flavor m1.tiny \ > --key-name mykey \ > --network demo-net \ > demo1 +-------------------------------------+-----------------------------------------------+ | Field | Value | +-------------------------------------+-----------------------------------------------+ | OS-DCF:diskConfig | MANUAL | | OS-EXT-AZ:availability_zone | | | OS-EXT-SRV-ATTR:host | None | | OS-EXT-SRV-ATTR:hypervisor_hostname | None | | OS-EXT-SRV-ATTR:instance_name | | | OS-EXT-STS:power_state | NOSTATE | | OS-EXT-STS:task_state | scheduling | | OS-EXT-STS:vm_state | building | | OS-SRV-USG:launched_at | None | | OS-SRV-USG:terminated_at | None | | accessIPv4 | | | accessIPv6 | | | addresses | | | adminPass | xGqRK5zi5Ra3 | | config_drive | | | created | 2021-08-05T13:04:29Z | | flavor | m1.tiny (1) | | hostId | | | id | 0bf754d6-a3f6-4a58-9e01-2daf937da4da | | image | cirros (65ea7ab9-367e-4410-b3fa-bcf35ed5fcd9) | | key_name | mykey | | name | demo1 | | progress | 0 | | project_id | 637d4156bede4e6db03fc0f556ee0250 | | properties | | | security_groups | name='default' | | status | BUILD | | updated | 2021-08-05T13:04:29Z | | user_id | fcc9299c122e4e41883875afd7bde61f | | volumes_attached | | +-------------------------------------+-----------------------------------------------+ 
Check the VM is running or not.
(wallaby) ubuntu@ubuntu-exp:~$ openstack server list +--------------------------------------+-------+--------+---------------------+--------+---------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+-------+--------+---------------------+--------+---------+ | 0a26c765-b2a3-43bf-9470-e118db41cfe1 | demo1 | ACTIVE | demo-net=10.0.0.132 | cirros | m1.tiny | +--------------------------------------+-------+--------+---------------------+--------+---------+ (wallaby) ubuntu@ubuntu-exp:~$
Issues
In this whole process I have faced only one issue. At the end I am not able to create VMs. When I was trying to create a VM I am getting an issue, mentioned below.
domain = self.get_connection().defineXML(xml)
File "/usr/lib/python3.6/site-packages/eventlet/tpool.py", line 190, in doit
result = proxy_call(self._autowrap, f, *args, **kwargs)
File "/usr/lib/python3.6/site-packages/eventlet/tpool.py", line 148, in proxy_call
rv = execute(f, *args, **kwargs)
File "/usr/lib/python3.6/site-packages/eventlet/tpool.py", line 129, in execute
six.reraise(c, e, tb)
File "/usr/lib/python3.6/site-packages/six.py", line 703, in reraise
raise value
File "/usr/lib/python3.6/site-packages/eventlet/tpool.py", line 83, in tworker
rv = meth(*args, **kwargs)
File "/usr/lib64/python3.6/site-packages/libvirt.py", line 4403, in defineXML
raise libvirtError('virDomainDefineXML() failed')
libvirt.libvirtError: unsupported configuration: Emulator '/usr/libexec/qemu-kvm' does not support virt type 'kvm'

In order to remove this issue, I have to change in nova-compute configuration in libvirt section changed virt_type from kvm to qemu.
virt_type = qemu
Restart the nova-compute container.
(wallaby) ubuntu@ubuntu-exp:~$ sudo docker restart nova_compute nova_compute (wallaby) ubuntu@ubuntu-exp:~$
