terraform: Azure Marketplace image support (#2651)

* terraform: add Azure marketplace variable

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* config: add Azure marketplace variable

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* cli: use Terraform variables from config

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* terraform: pass down marketplace variable

* image: pad Azure images to 1GiB

* terraform: add version attribute to marketplace image

* semver: allow versions to be exported without prefix

* cli: boolean var to use marketplace images

* config: remove dive key

* dev-docs: add instructions on how to use marketplace images

* terraform: fix unit test

* terraform: only fetch image for non-marketplace images

* mpimage: refactor image selection

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* [remove] increase minor version for image build

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* terraform: ignore changes to source_image_reference on upgrade

* operator: add support for parsing Azure marketplace images

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* upgrade: fix imagefetcher call

* docs: add info about azure marketplace

* image: ensure more than 1GiB in size

* image: test to pad to 2GiB

* version: change back to v2.14.0-pre

* image: GPT-conformant image size padding

* [remove] increase version

* mpimage: inline prefix func

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* ci: add marketplace image e2e test

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* [remove] register workflow

* ci: fix workflow name

* ci: only allow azure test

* cli: add marketplace image input to interface

* cli: fix argument passing

* version: roll back to v2.14.0

* ci: add force-flag support

* Update docs/docs/overview/license.md

* Update dev-docs/workflows/marketplace-images.md

Co-authored-by: Moritz Eckert <m1gh7ym0@gmail.com>

---------

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>
Co-authored-by: Moritz Eckert <m1gh7ym0@gmail.com>
Co-authored-by: Thomas Tendyck <51411342+thomasten@users.noreply.github.com>

cli/internal/cloudcmd/clients.go

@@ -20,7 +20,7 @@ import (
 type imageFetcher interface {
 	FetchReference(ctx context.Context,
 		provider cloudprovider.Provider, attestationVariant variant.Variant,
-		image, region string,
+		image, region string, useMarketplaceImage bool,
 	) (string, error)
 }