Ratelimit validation

[kolodziejczak]

Description

Changes proposed in this pull request:

• Add RateLimit CR static validation
• Add RateLimit CR in-code validation
• Introduce in-code RateLimit validation to the RateLimit reconcile loop
• Update technical design with a new CR and controller
• Fix RateLimit CRD group to align with the APIRule

Pre-Merge Checklist

• As a PR reviewer, verify code coverage and evaluate if it is acceptable.

Related issues

[Ressetkk]

You should organise code differently.
reconcile: controllers/gateway/ratelimit
api: apis/gateway/v1alpha1/ratelimit

I think we should set naming scheme for the CRDs like so:

• for APIs - apis/{group}/{version}/{name}
• for controllers - controllers/{group}/{name}

The code can be easily in the same group but in different packages. Please adjust the code and possibly revert the changes you did to move the code into the gateway package.

[kolodziejczak]

You should organise code differently. reconcile: controllers/gateway/ratelimit api: apis/gateway/v1alpha1/ratelimit

I think we should set naming scheme for the CRDs like so:

• for APIs - apis/{group}/{version}/{name}
• for controllers - controllers/{group}/{name}

The code can be easily in the same group but in different packages. Please adjust the code and possibly revert the changes you did to move the code into the gateway package.

Restructured slightly different:
for APIs - apis/group/kind/version
for controllers - controllers/group/kind