(@aws-cdk/aws-ecs): unable to add data volumes to a task definition

[wistonk]

Getting below errors when adding a volume on a task definition using @aws-cdk/aws-ecs module.

- Volume' does not exist on type 'typeof import...
- Property 'EfsVolumeConfiguration' does not exist ...

Reproduction Steps

• Create a task definition and add a volume

const volume = ecs.Volume("Volume", {
  // Use an Elastic FileSystem
  name: "mydatavolume",
  efsVolumeConfiguration: ecs.EfsVolumeConfiguration({
    fileSystemId: "EFS"
    // ... other options here ...
  })
});

const container = fargateTaskDefinition.addVolume("mydatavolume");

What did you expect to happen?

Successfully add data volumes to a task definition without above stated error

What actually happened?

error TS2339: Property 'Volume' does not exist on type 'typeof import("/Users/me/../../myproject/node_modules/@aws-cdk/aws-ecs/lib/index")'.

and

error TS2339: Property 'EfsVolumeConfiguration' does not exist on type 'typeof import("/Users/me/../../myproject/node_modules/@aws-cdk/aws-ecs/lib/index")'.

Environment

• **CDK CLI Version : 1.79.0 (build 8b3bf9c)
• Framework Version:
• **Node.js Version: v14.4.0
• **OS :macOs Catalina
• **Language (Version):TypeScript (3.8.3)

---

This is 🐛 Bug Report

[whilp]

Ran into this, too. It seems like Volume was only added as an interface in #8467. There, the documentation disagrees with the test:

aws-cdk/packages/@aws-cdk/aws-ecs/README.md

Lines 249 to 258 in e8801a0

	const volume = ecs.Volume("Volume", {
	// Use an Elastic FileSystem
	name: "mydatavolume",
	efsVolumeConfiguration: ecs.EfsVolumeConfiguration({
	fileSystemId: "EFS"
	// ... other options here ...
	})
	});
	const container = fargateTaskDefinition.addVolume("mydatavolume");

aws-cdk/packages/@aws-cdk/aws-ecs/test/ec2/test.ec2-task-definition.ts

Lines 988 to 993 in 85ff9fd

	const volume = {
	name: 'scratch',
	efsVolumeConfiguration: {
	fileSystemId: 'local',
	},
	};

I can at least proceed to compile (TypeScript) using the approach evident in the tests.

[github-actions]

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