NFV AND OPENSTACK : DEPLOYMENT OF OSM (Open Source MANO)

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1. Definition of OSM

According to the official site, Open Source Mano is defined as an ETSI-hosted project to develop an Open Source NFV Management and Orchestration (MANO) software stack aligned with ETSI NFV.

2. NFV architecture

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3. Installation of OSM

1. Prerequisites

For the installation of OSM, I need a VM with the following requirements :

OS : Ubuntu Server 24.04

CPU : 4

RAM : 16 GB

Disk : 80 GB

I also need the VM to run OpenStack. For the case, I deploy MicroStack.

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“Canonical MicroStack is an open source project that enables you to easily deploy a fully-functional OpenStack environment on your workstation or even a virtual machine (VM) in minutes”.

It currrently provides OpenStack services such as Keystone, Nova, Glance, Neutron and Horizon.

So, I run the following commands to install and initialize MicroStack.

sudo snap install microstack --classic --beta
sudo microstack.init

To get the default password to login with the admin username, I run the command :

sudo snap get microstack config.credentials.keystone-password

I download an Ubuntu Server image 20.04 in order to use MicroStack as VIM.

As I used snap for MicroStack installation, I change directory to the default location for saving the image :

cd /var/snap/microstack/common/images/
sudo wget https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-amd64.img
microstack.openstack image create --file="./focal-server-cloudimg-amd64.img" --container-format=bare --disk-format=qcow2 ubuntu20.04
microstack.openstack image list

2. Installation

To install OSM, I download the installation file :

wget https://osm-download.etsi.org/ftp/osm-14.0-fourteen/install_osm.sh
chmod +x install_osm.sh
./install_osm.sh

OSM is in version 17 now.

After the installation, I check the objects created :

helm list --all-namespaces
kubectl get svc -n osm
kubectl get deploy -n osm
kubectl get sts -n osm

I log in to the application

To interact with OSM by commands, I install osmclient :

sudo snap install osmclient

4. Adding VIM to OSM

Before adding MicroStack as VIM to OSM, I first create a keypair :

microstack.openstack keypair create microstack

• And I run the command below :

osmclient.osm vim-create --name microstack --user admin --password keystone --auth_url https://192.168.191.132:5000/v3 --tenant admin --account_type openstack \
      --config='{security_groups: default,
                 keypair: microstack,
                 project_name: admin,
                 user_domain_name: default,
                 region_name: microstack,
                 insecure: True,
                 availability_zone: nova,
                 version: 3,
                 use_floating_ip: true}'

5. Deploying a Network Service (NS) and a Virtual Network Function (VNF)

A Network Service is a composition of Network Functions that defines an end-to-end functional and behavioral specification. Consequently, a network service can be viewed architecturally as a forwarding graph of Network Functions (NFs) interconnected by supporting network infrastructure.

While a VNF commonly refers to the software form of network appliances such as a router, firewall, load balancer, etc. VNFs are mostly deployed as virtual machines (VMs) on Linux KVM or VMware vSphere hypervisors.

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So, to deploy a NS and a VNF, I download packages provided by Open Source MANO

wget http://osm-download.etsi.org/ftp/osm-5.0-five/6th-hackfest/packages/hackfest_basic_vnf.tar.gz
wget http://osm-download.etsi.org/ftp/osm-5.0-five/6th-hackfest/packages/hackfest_basic_ns.tar.gz
wget https://osm-download.etsi.org/ftp/Hackfests/OSM_Training_SLICES_Feb2024/hackfest_basic_metrics_vnf.tar.gz
wget https://osm-download.etsi.org/ftp/Hackfests/OSM_Training_SLICES_Feb2024/hackfest_basic_metrics_ns.tar.gz

Once downloaded, I run the commands below to upload those packages into OSM :

osmclient.osm nfpkg-create hackfest_basic_vnf.tar.gz
osmclient.osm nspkg-create hackfest_basic_ns.tar.gz
osmclient.osm nfpkg-create hackfest_basic_metrics_vnf.tar.gz
osmclient.osm nspkg-create hackfest_basic_metrics_ns.tar.gz

After uploading packages, I check :

osmclient.osm vnfpkg-list
osmclient.osm nspkg-list

6. Instantiating a NS

To instantiate a NS consists of creating an instance from the NS by running the command :

osmclient.osm ns-create --ns_name ns_instance --nsd_name hackfest_basic-ns --vim_account microstack
osmclient.osm ns-list
osmclient.osm vnf-list

7. Checking on VIM

To check that the NS instance has been created into the VIM, I run the command :

microstack.openstack server list
microstack.openstack server show <server_name>

A flavor has also been created hackfest_basic-VM-vnf-1-flv.

And the instance created is using as image the one I created at the beginning, Ubuntu20.04.

A floating IP is also created and assigned to the instance created according to the configuration parameters provided while adding the VIM.

At the Network Topology tab of OpenStack, I have my NS instance.

At the end, here is the dasboard

For the observability, there are Grafana and Prometheus that are installed during the OSM installation.

Grafana

Prometheus

https://osm.etsi.org/docs/user-guide/latest/01-quickstart.html

microstack

microstack — OpenStack in a snap!

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