cloudapi/v2: support local upload target

The target validation rework broke the local upload target, which is
needed for cockpit-image-builder.

internal/cloudapi/v2/imagerequest.go

@@ -375,6 +375,31 @@ func targetSupportMap() map[UploadTypes]map[ImageTypes]bool {
 			ImageTypesEdgeCommit: true,
 			ImageTypesIotCommit:  true,
 		},
+		UploadTypesLocal: {
+			ImageTypesAws:                  true,
+			ImageTypesAwsRhui:              true,
+			ImageTypesAwsHaRhui:            true,
+			ImageTypesAwsSapRhui:           true,
+			ImageTypesAzure:                true,
+			ImageTypesAzureRhui:            true,
+			ImageTypesAzureEap7Rhui:        true,
+			ImageTypesAzureSapRhui:         true,
+			ImageTypesEdgeCommit:           true,
+			ImageTypesEdgeContainer:        true,
+			ImageTypesEdgeInstaller:        true,
+			ImageTypesGuestImage:           true,
+			ImageTypesImageInstaller:       true,
+			ImageTypesIotBootableContainer: true,
+			ImageTypesIotCommit:            true,
+			ImageTypesIotInstaller:         true,
+			ImageTypesIotRawImage:          true,
+			ImageTypesLiveInstaller:        true,
+			ImageTypesMinimalRaw:           true,
+			ImageTypesOci:                  true,
+			ImageTypesVsphereOva:           true,
+			ImageTypesVsphere:              true,
+			ImageTypesWsl:                  true,
+		},
 	}
 }
 
@@ -437,6 +462,8 @@ func getTarget(targetType UploadTypes, options UploadOptions, request *ComposeRe
 	case UploadTypesPulpOstree:
 		irTarget, err = newPulpOSTreeTarget(options, imageType)
 
+	case UploadTypesLocal:
+		irTarget = target.NewWorkerServerTarget()
 	default:
 		return nil, HTTPError(ErrorInvalidUploadTarget)
 	}

internal/cloudapi/v2/imagerequest_test.go

@@ -178,6 +178,12 @@ func TestGetTargets(t *testing.T) {
 			includeDefault: true,
 			expected:       []target.TargetName{target.TargetNameAWSS3, target.TargetNameAWSS3},
 		},
+		"guest:local": {
+			imageType:      ImageTypesGuestImage,
+			targets:        []UploadTypes{UploadTypesLocal},
+			includeDefault: false,
+			expected:       []target.TargetName{target.TargetNameWorkerServer},
+		},
 		"guest:azure:fail": {
 			imageType: ImageTypesGuestImage,
 			targets:   []UploadTypes{UploadTypesAzure},

internal/cloudapi/v2/openapi.v2.yml

@@ -1226,8 +1226,7 @@ components:
           default: false
           description: |
             This is used in combination with the OSBUILD_LOCALSAVE environmental
-            variable on the server to enable saving the compose locally. This
-            is for development use only, and is not available to users.
+            variable on the server to enable saving the compose locally.
     AWSEC2UploadOptions:
       type: object
       additionalProperties: false