VTP already provides required compliance test cases for TOSCA and HEAT based VNF. And this page provides the details on the LCM test cases required to on-board and instantiate VNF (TOSCA & HEAT) in ONAP.
Problem Statement
https://wiki.lfnetworking.org/display/LN/VNF+Validation+Minimum+Viable+Product
Solution
ONAP VNF Test Platform (VTP) provides the required platform for deploying and excuting the required ONAP test cases, which could be of nature compliance, Life-cycle and performance & functional as well. In dublin, We have VVP and VNFSDK as apporved projects under ONAP, which handles the VNF related test cases for HEAT and TOSCA respectively and in dublin, we have unified the usage of these cases over VNF Test platform (VTP). This helps to run these test cases from where ever required, such as OVP, ONAP SDC. During the ONS 2019 events, these integrations are demonstrated. (in SDC for VSP compliance check before on-boarding the VNF and dovetail for running the test cases in ONAP for OVP). so VTP would be better option to run the LCM MVP test cases over ONAP.
Complete Life-cycle actions of VNF
The Life-cycle of VNF invovles following actions
A. Desgin-Time Life cycle operations
- on-boarding of the VNF packages
- modeling
B. Run-Time Life cycle operations
- instantiation of the VNF
- Configuration of VNF
- upgrade of VNF
- Termination of VNF
C. Closed-Loop Life cycle operations
- Auto / Manual Healing
- Auto / Manual Scaling
Planned Life-cycle actions of VNF for LCM MVP
As part of requirement defined by CVC for LCM MVP, A.1, A.2 and B.1 actions are required for both HEAT and TOSCA VNF.
Test case availability for LCM MVP actions
In dublin release, ONAP community enabled all required commands for doing end-end service provisioning as given below:
- available commands for the ONAP till today, here https://github.com/onap/cli/tree/master/products/onap-dublin/features.
- End to end integration of HEAT and TOSCA based HPA services using ONAP commands: https://github.com/onap/integration/tree/master/test/hpa_automation
These commands are super set of required actions in LCM MVP. And VTP has capability to directly consumes these commands as test cases, MVP could be achieved easily by levarging these commands in VTP.
ONAP does not provide option for end-user to instantiate VNF directly, but thru' Network Service (NS) via SO and E2E Service via VFC. so VTP will perform instantiation of VNF using SO and VFC.
How Heat based VNF is instatiated
The required commands for running the LCM MVP test cases are mentioned as part of the workflow given below for HEAT based ONAP ECOMP appr oach.
Sample available here: https://github.com/onap/integration/blob/master/test/hpa_automation/heat/hpa_automation.py
As VTP could levarage each of these commands as test cases , all these test cases for LCM is available as it is
How TOSCA based VNF is instatiated
.png?version=1&modificationDate=1562301788000&cacheVersion=1&api=v2)
Here, TBD commands to be implemented while others are already exists
Sample available here: https://github.com/onap/integration/blob/master/test/hpa_automation/tosca/hpa_automation.py
As VTP could levarage each of these commands as test cases , all these test cases for LCM is available as it is
LCM as one test case
Currently every action is available as indivual test cases and to run complete LCM operation including on-boarding and instantiation, this automation script to be modelled as test case, so complete LCM actions could be executed in one shot. so OVP can invoke these test cases either direclty invoking given LCM action or as a whole operation.