Context-Based Authorization Support across Flux Controllers

[pjbgf]

This issue tracks the implementation of context-based authorization across Flux controllers.

Below is a list Flux features that could support such functionality, and their current status.

Status	Component	Feature	Provider	Ref
Supported	Source Controller	Bucket Repository Authentication	AWS	Guide
Supported	Source Controller	Bucket Repository Authentication	Azure	Guide
Supported	Source Controller	Bucket Repository Authentication	GCP	Guide
Supported	Source Controller	OCI Repository Authentication	AWS	Guide
Supported	Source Controller	OCI Repository Authentication	Azure	Guide
Supported	Source Controller	OCI Repository Authentication	GCP	Guide
Supported	Image Reflector Controller	Container Registry Authentication	AWS	Guide
Supported	Image Reflector Controller	Container Registry Authentication	Azure	Guide
Supported	Image Reflector Controller	Container Registry Authentication	GCP	Guide
Supported	Kustomize Controller	SOPS Integration with Cloud KMS	AWS	Guide
Supported	Kustomize Controller	SOPS Integration with Cloud KMS	Azure	Guide
Supported	Kustomize Controller	SOPS Integration with Cloud KMS	GCP	Guide
Supported	Source Controller	Helm OCI Repository Authentication	AWS	Guide
Supported	Source Controller	Helm OCI Repository Authentication	Azure	Guide
Supported	Source Controller	Helm OCI Repository Authentication	GCP	Guide
Not Supported	Source Controller	Git Repository Authentication (RO)	AWS	fluxcd/source-controller#835
Not Supported	Source Controller	Git Repository Authentication (RO)	Azure	fluxcd/source-controller#1284
Not Supported	Source Controller	Git Repository Authentication (RO)	GCP
Not Supported	Image Automation Controller	Git Repository Authentication (RW)	AWS
Not Supported	Image Automation Controller	Git Repository Authentication (RW)	Azure
Not Supported	Image Automation Controller	Git Repository Authentication (RW)	GCP

As we add support for the features above, we should update the page: https://fluxcd.io/docs/security/contextual-authorization/.