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[aws-cdk] rds module not able to add proxy

See original GitHub issue

Hey, i’m currently trying to add a RDS proxy to my db cluster. Apparently, i get following error: Cannot read property ‘engine’ of undefined.

Reproduction Steps

		const vpc = ec2.Vpc.fromLookup(myScope, 'someId', { 
			vpcId: 'vpc-id'
		});

		const securityGroup = ec2.SecurityGroup.fromSecurityGroupId(myScope, 
			'someId', 
			'securit-group-id'
		);

		const cluster = DatabaseCluster.fromDatabaseClusterAttributes(myScope, 'someId', {
			port,
			securityGroups: [securityGroup],
			clusterIdentifier: 'cluster-identifier',
			instanceIdentifiers: ['instance-identifier'],
			clusterEndpointAddress: ''writer-endpoint,
			readerEndpointAddress: 'reader-endpoint',
			instanceEndpointAddresses: ['instance endpoint']
		});

		const secret = new Secret(myScope, 'Secret');

		cluster.addProxy('testProxy', {
			borrowTimeout: cdk.Duration.seconds(30),
			maxConnectionsPercent: 50,
			secrets: [secret],
			vpc
		});

Error Log

Cannot read property ‘engine’ of undefined.

Environment

**CLI Version :1.53.0
**Framework Version: 1.53.0
**Node.js Version: 10.19.0
OS :
**Language (Version): all

This is 🐛 Bug Report

Issue Analytics

State:
Created 3 years ago
Reactions:3
Comments:5 (2 by maintainers)

Top GitHub Comments

3reactions

civilizeddevcommented, Jul 22, 2020

Sorry, currently not available

DatabaseCluster.fromDatabaseClusterAttributes returns IDatabaseCluster, which doesn’t have engine in it.

There’s no way to read engine from imported RDS instance/cluster resource at the moment.

Its’ unstable that it currently rely on (this.dbCluster.node.defaultChild as CfnDBCluster).engine.

https://github.com/aws/aws-cdk/blob/489eae64f6613cac85da2a70b33435052901255b/packages/%40aws-cdk/aws-rds/lib/proxy.ts#L69-L75

Ideas and suggestions are welcome.

2reactions

I2olanDcommented, Sep 16, 2020

Any updates on this @civilizeddev ?

Best,

Roland

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