Verifying OpenStack Installation on a Single Node

This shows how to access VM instances and perform traffic test after the OpenStack deployment is complete.

1. Create an Openstack image and a network on the host.

   source /root/keystonerc_admin
   
   openstack image create --disk-format qcow2 --container-format bare \
   --public --file ./Fedora-Cloud-Base-33-1.2.x86_64.qcow2 fedora
   
   # Create a flavor with huge pages
   openstack flavor set m1.medium --property hw:mem_page_size=large
   
   # Create a network
   openstack network create net1  --disable-port-security
   
   # Create a subnet
   openstack subnet create subnet1 --network net1 --subnet-range 192.1.10.0/24
   
   # Create a router
   openstack router create router1
   
   # Attach the subnet to the router
   openstack router add subnet router1 subnet1

2. Create ports and VMs.

   openstack port create --network net1 --fixed-ip \
   subnet=subnet1,ip-address=<VM IP> --vnic-type virtio-forwarder <port_name>
   
   openstack server create --flavor m1.medium --image fedora \
   --port <port_name> <vm_name>

   For example:

   # Create port10
   openstack port create --network net1 --fixed-ip \
   subnet=subnet1,ip-address=192.1.10.10 --vnic-type virtio-forwarder port10
   
   # Create vm1
   openstack server create --flavor m1.medium --image fedora --port port10 vm1
   openstack server show vm1 -f json
   
   # Create port10
   openstack port create --network net1 --fixed-ip \
   subnet=subnet1,ip-address=192.1.10.20 --vnic-type virtio-forwarder port20
   
   # Create vm2
   openstack server create --flavor m1.medium --image fedora --port port20 vm2
   openstack server show vm2 -f json

3. Check the status of the VMs.

   openstack server list

   An output example:

   +--------------------------------------+------+--------+------------------+---------+-----------+
   | ID                                   | Name | Status | Networks         | Image   | Flavor    |
   +--------------------------------------+------+--------+------------------+---------+-----------+
   | db615599-e547-43e8-a0d8-99f7b9b8a552 | vm2  | ACTIVE | net1=192.1.10.20 | fedora  | m1.medium |
   | 2931f302-ea1d-49f6-a6ca-2b6558b93445 | vm1  | ACTIVE | net1=192.1.10.10 | fedora  | m1.medium |
   +--------------------------------------+------+--------+------------------+---------+-----------+

   Two VM instances are created in this example.
4. List the VM instances using virsh.

   virsh list --all

   An output example:

    Id   Name                State
   -----------------------------------
    1    instance-00000001   running
    2    instance-00000002   running

5. Access the VM instances.

   virsh console <VM instance name>

6. Compare the MAC addresses of the ports on the host and on the VM instances.
   Execute the following command on the host to get the MAC address of a port.

   openstack port show <port_name> | grep mac_address

   For example:

   openstack port show port10 | grep mac_address

   An output example:

   | mac_address             | fa:16:3e:e8:6c:42 

   Note: The following command must be executed to enable the openstack commands when a new terminal is opened.

   source /root/keystonerc_admin

   Check the MAC address on each VM. For example:

   ip a

   Note: If the IP address is not assigned, configure manually.

   ip a add <ip>/<netmask> dev eth0

   For example:

   ip a add 192.168.1.10/24 dev eth0

   Two VMs should now be connectable via ping.

7. Test with traffic between two VM instances using iperf3.
   For example:

   # Start iperf3 as a server on one VM
   iperf3 -s
   
   # Start bandwidth test on another VM
   iperf3 -c 192.168.1.X

   where X is the last field of the iperf3 server IP address.