Fetching the route table id attached to a specific VPC

[ashishkurian]

Hello Folks,

For my CDK app, I am able to find the required VPC id using the ec2.Vpc.from_lookup method. Further, I need to find the route table id that is applied to this VPC. Finally I need to enable route propagation to this route table to complete my site2site VPN setup.

When I provide the route table id manually to the ec2.CfnVPNGatewayRoutePropagation construct, I can finish what I want to achive.

The way I want is : I need to fetch the rpute table id attached to my VPC and then pass it automatically to the ec2.CfnVPNGatewayRoutePropagation construct.

I tried to read the documentation and it seem it is not possible to fetch the route table id from a VPC. Can you help me with this requirement?

[cmorgia]

Hi,
I would suggest first selecting the VPC's subnets of interest and then, from each subnet, navigating to the attached route table.

[peterwoodworth]

All information retrieved from lookup can be found in cdk.context.json, including the route table ID in this case. You can access this context with tryGetContext https://docs.aws.amazon.com/cdk/v2/guide/context.html

[github-actions[bot]]

Hello! Reopening this discussion to make it searchable.