Infrastructure profiles for Kubernetes clusters

Proposers

• Gerardo García (Telefónica)
• Francisco Javier Ramón (Telefónica)
• Jayaprakash G (Tata Elxsi)
• Utkarsh Mishra (Tata Elxsi)
• Deepika E (Tata Elxsi)
• Sandhya J. S (Tata Elxsi)
• Priyadharshini S (Tata Elxsi)
• Shahithya Y (Tata Elxsi)
• Shrinithi R (Tata Elxsi)
• Ramesh Ramanathan (Tata Elxsi)

Reference

This feature is related to the long-term initiative presented in previous meetings:

• https://docbox.etsi.org/OSG/OSM/05-CONTRIBUTIONS/2023//OSM(23)000105_Telef_nica_s_Initiative_for_OSM_LTV.pptx
• https://docbox.etsi.org/OSG/OSM/05-CONTRIBUTIONS/2023//OSM(23)000081_Telef_nica_s_Initiative_proposal_for_Long_Term_View.pptx

The main purpose of the initiative is to use well known CRDs for new southbound operations (K8s clusters, PaaS/IaaS components, serverless workflows, Cluster API), relying on existing open source solutions such as Crossplane, FluxCD, ArgoCD, etc. These south-bound operations will be properly modeled and abstracted by OSM, which will provide a convenient user-facing modelling, in order to offer new use cases such as a complete cluster management from OSM and the support of PaaS-based deployment units.

Description

This feature proposes the creation of a new first class citizen in OSM named Infra Profiles to model sets of SW components deployable over Kubernetes (named KSUs). Infra Profiles allow re-usability of SW components in multiple Kubernetes clusters, enabling organizations to manage cluster profiles for different purposes, e.g. light-weight clusters, EPA-based, clusters with service-mesh, etc., and combining them at will to create the desired Kubernetes cluster.

As first class citizens in OSM, CRUD operations (Create, Read, Update, Delete) could be done on them. As a general rule, in principle deletion shouldn't be allowed if other first class citizens are using them.

Demo or definition of done

A new Robot test will be created or updated to test the CRUD operations over Infra Profiles using the osmclient.