Add ReleaseChannel CRD

[Starefossen]

Create a new CRD for ReleaseChannel

• docs
• crd
• controller
  • canary
  • instances
  • new instances
• meta
  • kubebuilder v4
  • kustomize update

[Copilot]

PR Overview

This PR adds a new ReleaseChannel CustomResourceDefinition and updates the API types, tests, and RBAC configurations to support managing release channels for Unleash deployments.

• Introduces the ReleaseChannel CRD with validation schemas and printer columns.
• Adds API types and tests for ReleaseChannel functionality and integrates it with Unleash deployments.
• Updates RBAC rules and generated deepcopy code along with package renaming to “v1”.

Reviewed Changes

File	Description
charts/unleasherator-crds/templates/releasechannel-crd.yaml	New CRD definition for ReleaseChannel with detailed schema
api/v1/releasechannel_types.go	API types for ReleaseChannel and associated methods
api/v1/releasechannel_types_test.go	Tests for candidate and update behavior
charts/unleasherator/templates/releasechannel-editor-rbac.yaml	RBAC configuration for ReleaseChannel editing
api/v1/zz_generated.deepcopy.go	Regenerated deepcopy functions and package renaming
charts/unleasherator/templates/unleash-crd.yaml	Updated CRD for Unleash including releaseChannel properties
api/v1/unleash_types.go	Updates to Unleash API including a new Image resolution logic
charts/unleasherator/templates/manager-rbac.yaml	Addition of RBAC rules for releasechannel resources
(Other package renaming diffs in various test and API type files)	Package updates from unleash_nais_io_v1 to v1

Copilot reviewed 83 out of 83 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (3)

api/v1/zz_generated.deepcopy.go:5

• Verify that the package name change from 'unleash_nais_io_v1' to 'v1' is reflected consistently across all files and autogenerated code to avoid potential mismatches.

package v1

api/v1/apitoken_types.go:7

• Ensure that the import path update for the utils package is intentional and that all references to the old 'pkg/utils' package path have been updated project-wide.

import ( ... "github.com/nais/unleasherator/internal/utils"

api/v1/unleash_types.go:356

• [nitpick] Since 'CustomImage' is defined as a UnleashImage type (alias for string), consider comparing it to UnleashImage("") for clarity and type consistency.

if u.Spec.CustomImage != "" {