New feature request: K8s Proxy Charms

Proxy Charms on K8s

Proposer

Tytus Kurek (Canonical) David Garcia (Canonical) Dominik Fleischmann (Canonical)

Type

Feature

Target MDG/TF

IM, LCM, N2VC

Description

Currrently proxy charms are deployed on LXD. This allows us to have these workloads running without consuming a lot of resources.Nevertheless with OSM starting to be used for production level deployments new methods of deploying these workloads shall be considered.

By deploying proxy charms on Kuberentes the deployments will be faster and will ensure all the orchestration features already available in a K8s cluster. This will be achieved by adding an additional field in the descriptors stating that this proxy charm will be deployed on Kubernetes (k8s-proxy-charm). The charm will then be deployed in a Kubernetes that must have been added previously with k8scluster-add and will operate the same way as a proxy charm in LXD.

In the charm implementation the only thing that should change is the charm series in the metadata.yaml which will be changed to series: kubernetes.

Definition of done

Once this feature is implemented the user will be able to deploy proxy charms on kubernetes by changing the above mentioned charm series and setting the k8s-proxy-charm field in their descriptors.