Refactor: Add docker-utils typings

Change-type: patch
Signed-off-by: Cameron Diver <cameron@resin.io>

src/lib/docker-utils.d.ts

@@ -0,0 +1,35 @@
+import * as Bluebird from 'bluebird';
+import DockerToolbelt = require('docker-toolbelt');
+
+// This is the EnvVarObject from src/lib/types, but it seems we cannot
+// reference it relatively. Just redefine it as it's simple and won't change
+// often
+
+interface EnvVarObject {
+	[name: string]: string;
+}
+
+interface TaggedRepoImage {
+	repo: string;
+	tag: string;
+}
+
+declare class DockerUtils extends DockerToolbelt {
+	constructor(opts: any);
+
+	getRepoAndTag(image: string): Bluebird<TaggedRepoImage>;
+
+	fetchDeltaWithProgress(imgDest: string, fullDeltaOpts: any, onProgress: (args: any) => void): Bluebird<void>;
+
+	fetchImageWithProgress(
+		image: string,
+		config: { uuid: string, currentApiKey: string },
+		onProgress: (args: any) => void,
+	): Bluebird<void>;
+
+	getImageEnv(id: string): Bluebird<EnvVarObject>;
+	getNetworkGateway(netName: string): Bluebird<string>;
+
+}
+
+export = DockerUtils;