Create image contracts when creating release

This will use the contracts created from the composition (if any)
to set the `contract` property in the release images.

This requires passing a list of ImageDescriptors returned by
compose.parse when calling release `create`.

Change-type: minor

lib/release/api.ts

@@ -3,7 +3,8 @@ import type { PinejsClientCore } from 'pinejs-client-core';
 import * as models from './models';
 import type { Dict } from './types';
 
-import type { Composition } from '../../lib/parse';
+import type { Composition, ImageDescriptor } from '../../lib/parse';
+import { parse } from '../../lib/parse';
 
 const MAX_CONCURRENT_REQUESTS = 5;
 
@@ -69,6 +70,12 @@ export interface Request {
 
 	/** 'balena.yml' contract contents */
 	contract?: models.JsonType;
+
+	/**
+	 * List of image descriptors returned
+	 * by compose.parse
+	 */
+	imgDescriptors?: ImageDescriptor[];
 }
 
 export interface Response {
@@ -104,6 +111,7 @@ export async function create(req: Request) {
 
 	const res = { release, serviceImages: {} } as Response;
 
+	const imgDescriptors = req.imgDescriptors ?? [];
 	// Create services and associated image, labels and env vars
 	await pMap(
 		Object.entries(req.composition.services),
@@ -113,6 +121,10 @@ export async function create(req: Request) {
 				service_name: serviceName,
 			});
 
+			const imgDescriptor = imgDescriptors.find(
+				(d) => d.serviceName === serviceName,
+			);
+
 			// Create images and attach labels and env vars
 			const img = await createImage(
 				api,
@@ -123,6 +135,8 @@ export async function create(req: Request) {
 					is_a_build_of__service: service.id,
 					status: 'running',
 					start_timestamp: new Date(),
+					...(imgDescriptor &&
+						imgDescriptor.contract && { contract: imgDescriptor.contract }),
 				},
 			);