(assets): Make stack available as an asset

[0xjjoyy]

Make stack available as an asset in another stack, as the synthesized file doesn't exist when the other stack needs it to sythensize it's stack.

Use Case

AWS Config conformance packs need the cloudformation template
https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-config.CfnOrganizationConformancePack.html

Proposed Solution

Referencing #11896

Other

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change

---

This is a 🚀 Feature Request

[kichik]

CDK Pipelines do something like that. I believe they use Stage.synth() which generates a cloud assembly. A cloud assembly contains and gives access to your template and other assets.

[amirfireeye]

Here is where that code lives

aws-cdk/packages/@aws-cdk/pipelines/lib/blueprint/stage-deployment.ts

Lines 46 to 80 in ebba618

	public static fromStage(stage: cdk.Stage, props: StageDeploymentProps = {}) {
	const assembly = stage.synth();
	if (assembly.stacks.length === 0) {
	// If we don't check here, a more puzzling "stage contains no actions"
	// error will be thrown come deployment time.
	throw new Error(`The given Stage construct ('${stage.node.path}') should contain at least one Stack`);
	}
	const stepFromArtifact = new Map<CloudFormationStackArtifact, StackDeployment>();
	for (const artifact of assembly.stacks) {
	const step = StackDeployment.fromArtifact(artifact);
	stepFromArtifact.set(artifact, step);
	}
	for (const artifact of assembly.stacks) {
	const thisStep = stepFromArtifact.get(artifact);
	if (!thisStep) {
	throw new Error('Logic error: we just added a step for this artifact but it disappeared.');
	}
	const stackDependencies = artifact.dependencies.filter(isStackArtifact);
	for (const dep of stackDependencies) {
	const depStep = stepFromArtifact.get(dep);
	if (!depStep) {
	throw new Error(`Stack '${artifact.id}' depends on stack not found in same Stage: '${dep.id}'`);
	}
	thisStep.addStackDependency(depStep);
	}
	}
	return new StageDeployment(Array.from(stepFromArtifact.values()), {
	stageName: stage.stageName,
	...props,
	});
	}

[peterwoodworth]

Thanks for responding guys!

[github-actions]

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[0xjjoyy]

I'm not sure why this is closed @peterwoodworth ? Is the feature implemented?

[peterwoodworth]

Sorry, I'm not sure what makes this feature request distinct from the one that was linked #11896. Are these not the same requests?

[peterwoodworth]

@0xjjoyy please ping me again if you can distinguish what's unique about this feature request