[rds] Can't export the secret name from a DatabaseCluster

[ericzbeard]

It is not possible to export the name of the secret that is generated by the DatabaseCluster construct.

Reproduction Steps

        # Create the cluster
        cluster = rds.DatabaseCluster(
            self,
            "Database",
            engine=rds.DatabaseClusterEngine.aurora_mysql(
                version=rds.AuroraMysqlEngineVersion.VER_2_09_0
            ),
            instance_props={
                "instance_type": ec2.InstanceType.of(
                    ec2.InstanceClass.BURSTABLE2, ec2.InstanceSize.MEDIUM
                ),
                "vpc_subnets": {"subnet_type": ec2.SubnetType.PRIVATE},
                "vpc": vpc,
                "security_groups": [aurora_sg],
            },
        )

        # Output RDS secret name
        _ = core.CfnOutput(
            self,
            "MySecretOut",
            value=cluster.secret.secret_name,
            export_name="my-secret-name",
        )

What did you expect to happen?

The secret name should be exported in the synthesized template.

What actually happened?

The resource in the template is missing the Value, which causes a deployment failure.

    "MySecretOut": {
      "Export": {
        "Name": "my-secret-name"
      }
    }

Environment

• CLI Version : 1.68
• Framework Version:
• Node.js Version:
• OS :
• Language (Version):

Other

We should also modify CfnOutput to fail when the value provided is undefined.

---

This is 🐛 Bug Report

[mfsjr]

I'm experiencing this as well, I'm on CLI version 1.67.

[github-actions]

⚠️COMMENT VISIBILITY WARNING⚠️

Comments on closed issues are hard for our team to see.
If you need more assistance, please either tag a team member or open a new issue that references this one.
If you wish to keep having a conversation with other community members under this issue feel free to do so.