[COST-4993] gate ec2 endpoint with unleash

[maskarb]

Jira Ticket

COST-4993

Description

This change will use the is_feature_cost_4403_ec2_compute_cost_enabled feature flag to gate the API response.

Testing

1. start koku with gunicorn:

$ RUN_GUNICORN=True docker compose up koku-server

2. in unleash, clone the cost-management.backend.schema-flag-template -> cost-management.backend.feature-4403-enable-ec2-compute-processing
3. delete redis cache:

$ make delete-redis-cache

4. visit http://localhost:8000/api/cost-management/v1/reports/aws/resources/ec2-compute/?filter[operating_system]=10 and see a response
5. in unleash, set the rollout % to 0%. Wait a few minutes
6. delete redis-cache:

$ make delete-redis-cache

7. visit http://localhost:8000/api/cost-management/v1/reports/aws/resources/ec2-compute/?filter[operating_system]=10 again and this time see a 404 Not Found response:

{
    "errors": [
        {
            "detail": "Not found.",
            "source": "detail",
            "status": 404
        }
    ]
}

Release Notes

• proposed release note

* [COST-4993](https://issues.redhat.com/browse/COST-4993) gate EC2 endpoint with unleash flag

[maskarb]

/retest

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.1%. Comparing base (7aad9f8) to head (f3f1dae).

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #5229     +/-   ##
=======================================
- Coverage   94.1%   94.1%   -0.0%     
=======================================
  Files        373     373             
  Lines      31130   31136      +6     
  Branches    4573    4574      +1     
=======================================
+ Hits       29301   29305      +4     
- Misses      1164    1165      +1     
- Partials     665     666      +1