(custom-resources): broken usage of list tokens in parameters #14088
Description
Referencing a token that is a list of strings within a custom resource parameters object results in a reference to an undefined parameter.
Reproduction Steps
Reproduction App
import * as cdk from '@aws-cdk/core';
import * as ec2 from '@aws-cdk/aws-ec2';
import * as cr from '@aws-cdk/custom-resources';
export class BadrefStack extends cdk.Stack {
constructor(scope: cdk.Construct, id: string, props?: cdk.StackProps) {
super(scope, id, props);
const vpc = new ec2.Vpc(this, 'MyVpc');
const vpce = new ec2.InterfaceVpcEndpoint(this, 'MyVpcEndpoint', {
vpc,
service: {
name: 'com.amazonaws.us-east-1.execute-api',
port: 443
}
});
const policy = cr.AwsCustomResourcePolicy.fromSdkCalls({
resources: cr.AwsCustomResourcePolicy.ANY_RESOURCE,
});
new cr.AwsCustomResource(this, 'GetEdnpointIp', {
policy,
onUpdate: {
service: 'EC2',
action: 'DescribeNetworkInterfaces',
outputPath: 'NetworkInterfaces.${index}.PrivateIpAddress',
parameters: {
// NetworkInterfaceIds: vpce.vpcEndpointNetworkInterfaceIds,
NetworkInterfaceIds: [cdk.Token.asList(cdk.Stack.of(this).toJsonString(cdk.Fn.join('","', vpce.vpcEndpointNetworkInterfaceIds)))]
},
physicalResourceId: cr.PhysicalResourceId.of('resourceid'),
}
});
}
}What did you expect to happen?
Deploys the app to cloudformation with the CR having access to the vpce network interface IDs as json.
What actually happened?
cdk deploy results in
Template error: instance of Fn::GetAtt references undefined resource CdkJsonStringify3
Environment
- CDK CLI Version : 1.97.0
- Framework Version: 1.97.0
- Node.js Version: 14.15.4
- OS : MacOS
- Language (Version): all
Other
Related to some recent changes:
#13465
#13544
This is 🐛 Bug Report