Creating your own VNF package

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This page illustrates how to create your own VNF package. As a previous step, it is highly convenient that you collect the internal structure of your VNF: its VDUs, the VDU information (flavor, interfaces, image, etc.), the VNF internal networks, and the external connection points. The presentation in this link might help you collecting all the information.

VNF without primitives

Using the CLI tool

  • Clone the devops repo:
git clone https://osm.etsi.org/gerrit/osm/devops
  • Run the following command to create a folder with all the files required for a single-VM VNF package:
./devops/descriptor-packages/tools/generate_descriptor_pkg.sh -t vnfd --image <IMAGE_PATH> -c <VNF_NAME>
  • A folder called <VNF_NAME>_vnfd will be created with all the files required for a VNF package.
  • Edit the descriptor file <VNF_NAME>_vnfd.yaml.
    • By default, the descriptor is prepared for a single-VM VNF.
    • Add as many VMs as required.
    • Add also Internal VLDs as required.
  • Add any artifacts needed by the VNF (eg, charm, icons, images etc ...) to the appropriate folder and make sure it is referenced in the descriptor.
  • Once done, you can generate the tar.gz VNF package with the command:
./devops/descriptor-packages/tools/generate_descriptor_pkg.sh -t vnfd -N <VNF_NAME>_vnfd
#Note: the argument -N is optional and is intended to keep the package files after creating the package

VNF with primitives

You will have to create a proxy charm for the VNF. You can follow the general instructions below:

  • Clone the devops repo:
git clone https://osm.etsi.org/gerrit/osm/devops

You can then follow the ping-pong example in OSM descriptor packages to integrate the charm into VNF primitives

Migrating old descriptors to release FIVE

Only file containing the VNFD or NSD descriptor need to be migrated. Clone the devops repo, run the utility for that and generate the package: 

git clone https://osm.etsi.org/gerrit/osm/devops
./devops/descriptor-packages/tools/upgrade_descriptor_version.py -i <old-descriptor-file> -o <new-descriptor-file>
# generate package following the instructions of previous sections

This command fails if package python-osm-im is not installed. Follow these guidelines to install it: Installing_Python_OSM_IM_package

Validate descriptors

This utility is under the 'devops' repository. Clone it using the above steps. Can be invoked with: 

./devops/descriptor-packages/tools/validate_descriptor.py <DESCRIPTOR_FILE>

It is also integrated in the devops/descriptor-packages makefile system 

make test

This command fails if package python-osm-im is not installed. Follow these guidelines to install it: Installing_Python_OSM_IM_package

Installing Python OSM IM package

Follow these steps to install it if needed: 

# Check that the current OSM debian repository is the stable Release FIVE repo:
grep -h ^deb /etc/apt/sources.list /etc/apt/sources.list.d/* |grep osm-download
#  should be similar to this, and should include IM component:
#    deb [arch=amd64] https://osm-download.etsi.org/repository/osm/debian/ReleaseFIVE stable IM osmclient devops

# If missing, add repository with:
curl "https://osm-download.etsi.org/repository/osm/debian/ReleaseFIVE/OSM%20ETSI%20Release%20Key.gpg" | apt-key add -
apt-get update && add-apt-repository -y "deb [arch=amd64] https://osm-download.etsi.org/repository/osm/debian/ReleaseFIVE stable IM osmclient devops"

# Install/update python-osm-im and its dependencies
apt-get update
apt-get install python-osm-im
sudo -H pip install pyangbind
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