Swap Eiffel generic helm chart object statefulset to deployment

[emichaf]

Description

Eiffel bundle uses generic Helm chart with statefulset. The statefulset is not needed for stateless microservices and should be swapped with deployments. Included 3PPs like mongoDB/RabbitMQ etc. are excluded in this Issue.

Motivation

Statefulsets are used for managing stateful applications (like DBs etc). Deployments are used for stateless applications like Eiffel components.

Exemplification

https://kubernetes.io/docs/concepts/workloads/controllers/deployment/

Benefits

Use recommended K8S objects for stateless microservices.

Possible Drawbacks

None