Plan till first production release

[gautamp8]

Here's the accepted CEP for the project - https://github.com/celery/ceps/blob/master/draft/celery-kubernetes-operator.rst
This issue is to outline the TODOs and plan the first production-ready release for the operator.

• Define the goals for the first release
• Finalize the CRD template, add documentation
• Improve the handlers code and project structure/layering (Use classes to represent Celery/Flower deployments)
• Add tests for all the handlers, include coverage plugins, bring >95% test coverage
• Test the operator operations in a Kubernetes cluster under production traffic for two weeks
• Improve readme, documentation and prepare for the first release

[gautamp8]

I devote 20% of my time(Every Friday + Some part of the weekend) to this project to move things in a consistent way. Any contributions/help is welcome

[gautamp8]

A somewhat detailed task list for the first release -

• Write a production-ready CRD for the cluster (Add production ready CRD spec #15)
• Explore Kind for bootstrapping local Kubernetes cluster and development instead of Minikube
• Update handlers to take care of new CRD fields (WIP)
• Add support for the basic broker and result backend support for redis and RMQ
• Add tests for the handlers, achieve acceptable coverage
• Use poetry/pipenv for dependency management
• Add a CI to the repo
• Improve readme
  • Write crisp, to-the-point documentation
  • Add relevant badges, integrations
  • Add a demo video
• Deploy to a production cluster, load test with some traffic, simulate failures of different components
• Prepare for production release - Access control, Dockerfile, Helm Chart etc