rfc: Cloud Assembly Specification

packages/@aws-cdk/cdk/lib/app.ts

@@ -1,3 +1,4 @@
+import cloudAssembly = require('@aws-cdk/cloud-assembly');
 import cxapi = require('@aws-cdk/cx-api');
 import fs = require('fs');
 import path = require('path');
@@ -42,14 +43,20 @@ export class App extends Root {
       return;
     }
 
-    const result: cxapi.SynthesizeResponse = {
-      version: cxapi.PROTO_RESPONSE_VERSION,
-      stacks: this.synthesizeStacks(Object.keys(this.stacks)),
-      runtime: this.collectRuntimeInformation()
+    const manifest: cloudAssembly.Manifest = {
+      schema: 'cloud-assembly/1.0',
+      drops: { CDKMetadata: this.collectRuntimeInformation() },
     };
 
-    const outfile = path.join(outdir, cxapi.OUTFILE_NAME);
-    fs.writeFileSync(outfile, JSON.stringify(result, undefined, 2));
+    for (const stack of this.synthesizeStacks(Object.keys(this.stacks))) {
+      manifest.drops[`stacks/${stack.name}`] = {
+        type: 'npm://@aws-cdk/cdk/CloudFormationStackDroplet',
+        environment: `aws://${stack.environment.account}/${stack.environment.region}`,
+      };
+    }
+
+    const outfile = path.join(outdir, cloudAssembly.MANIFEST_FILE_NAME);
+    fs.writeFileSync(outfile, JSON.stringify(manifest, undefined, 2));
   }
 
   /**
@@ -123,7 +130,7 @@ export class App extends Root {
     }
   }
 
-  private collectRuntimeInformation(): cxapi.AppRuntime {
+  private collectRuntimeInformation(): cloudAssembly.Drop {
     const libraries: { [name: string]: string } = {};
 
     for (const fileName of Object.keys(require.cache)) {
@@ -133,7 +140,11 @@ export class App extends Root {
       }
     }
 
-    return { libraries };
+    return {
+      type: 'npm://@aws-cdk/cdk/CDKMetadataDroplet',
+      environment: '*',
+      properties: { libraries }
+    };
   }
 
   private getStack(stackname: string) {

packages/@aws-cdk/cloud-assembly/.gitignore

@@ -0,0 +1,11 @@
+
+dist
+.LAST_PACKAGE
+.LAST_BUILD
+.jsii
+.nyc_output
+.nycrc
+*.snk
+*.js
+*.d.ts
+coverage

packages/@aws-cdk/cloud-assembly/.npmignore

@@ -0,0 +1,11 @@
+
+dist
+.LAST_PACKAGE
+.LAST_BUILD
+*.snk
+*.ts
+!*.d.ts
+!*.js
+coverage
+.nyc_output
+*.tgz

packages/@aws-cdk/cloud-assembly/LICENSE

@@ -0,0 +1,201 @@
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packages/@aws-cdk/cloud-assembly/NOTICE

@@ -0,0 +1,2 @@
+AWS Cloud Development Kit (AWS CDK)
+Copyright 2018-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.

packages/@aws-cdk/cloud-assembly/README.md

@@ -0,0 +1,2 @@
+## Reference implementation for the Cloud Assembly specification
+This module is part of the [AWS Cloud Development Kit](https://github.com/awslabs/aws-cdk) project.

packages/@aws-cdk/cloud-assembly/lib/index.ts

@@ -0,0 +1,2 @@
+export * from './manifest';
+export * from './validate-manifest';

packages/@aws-cdk/cloud-assembly/lib/manifest.ts

@@ -0,0 +1,34 @@
+export const MANIFEST_FILE_NAME = 'manifest.json';
+
+export interface Manifest {
+  schema: 'cloud-assembly/1.0';
+  drops: { [logicalId: string]: Drop };
+  missing?: { [key: string]: Missing };
+}
+
+export interface Drop {
+  dependsOn?: string[];
+  /**
+   * @pattern ^[^:]+://.+$
+   */
+  type: string;
+  /**
+   * @pattern ^[^:]+://.+$
+   */
+  environment: string;
+  metadata?: { [key: string]: Metadata };
+  properties?: { [name: string]: any }
+}
+
+export interface Missing {
+  /**
+   * @pattern ^[^:]+://.+$
+   */
+  provider: string;
+  props: { [key: string]: any };
+}
+
+export interface Metadata {
+  kind: string;
+  value: any;
+}