Add creation handler (WIP)

[gautamp8]

This PR contains the following changes -

• Add dataclass for custom resource
• Utilities for generating Kubernetes resources(Pods, Service, Deployments) for worker and flower
• Some refactoring/re-arranging of old project files

TODOs:

• Decide the handler status return structure to be stored as status value in custom resource created
• Support for Celery 5
• Kopf unit test for creation

Dependent changes -
This PR to be merged only after #15 is merged.

Upcoming changes:

• Add Update handler
• Cleaning up of old code of updation, creation, and autoscaling utilities.

[lgtm-com]

This pull request introduces 2 alerts and fixes 2 when merging 14cef07 into 3163d6c - view on LGTM.com

new alerts:

• 1 for Except block handles 'BaseException'
• 1 for Wrong number of arguments in a call

fixed alerts:

• 1 for Unused local variable
• 1 for Unused import

[lgtm-com]

This pull request introduces 2 alerts and fixes 2 when merging 5565fa8 into 3163d6c - view on LGTM.com

new alerts:

• 1 for Except block handles 'BaseException'
• 1 for Wrong number of arguments in a call

fixed alerts:

• 1 for Unused local variable
• 1 for Unused import

[auvipy]

you can try httpx and see if any side effect

[gautamp8]

Yes, actually, it's the old code dependency that I wrote for the prototype. I'll remove it in the next PR. It is being used to poll flower API to fetch queue length. Autoscaling implementation will change entirely.

[auvipy]

explicit inheritance from the object is not needed