No matter how you like to participate in developer communities, Pulumi wants to meet you there. If you want to meet other Pulumi users to share use-cases and best practices, contribute code or documentation, see us at an event, or just tell a story about something cool you did with Pulumi, you are part of our community.

Pulumi Community

Hi, can anyone direct me on how to modify an pulumi output obj - AWS?

I have created an RouteTable object with one route. Now I want to modify this object by adding another route to the table. I have the created the object (*rt*) and now I tried to append to routes by `rt.routes.append(&lt;new route args&gt;)` but I’m getting the followiing error
```route_table.routes.append(route_args)
TypeError: 'Output' object is not callable```

The `routes` property is an "output" property of RouteTable, which means it's read-only. To add routes to a route table, you can either declare them on the `RouteTable` declaration itself, like this: <https://github.com/pulumi/examples/blob/45eeabec900da9f8d2446d36879887828560f086/aws-py-eks/vpc.py#L24C1-L34C2>

 or as individual `Route` resources associated to the `RouteTable`, such as <https://github.com/pulumi/examples/blob/45eeabec900da9f8d2446d36879887828560f086/aws-py-hub-and-spoke-network/inspection.py#L303-L314>

Maybe the second example is more what you're looking for?

I think it’s closer to the second example, but is the key the ResourceOptions?

What I’m trying to do is I already have my stack deployed with a set of route tables. Now I’m adding a peering connection and with that i would like to update the current set of route tables with an additional route entry.

So what I have code wise is an array of the route table objects, and I would like to modify/add to the routes field. Would you have a suggestion on how to accomplish this ?

Are the new route entry and peering connection being managed by the same Pulumi program that defines the RouteTables?

So you're adding new code to, say, the same Python file that defines the RouteTables, ok. I haven't tried this myself (not super familiar with these resources) , but I suspect you'll want to do something like this -- this is TypeScript, but the resources are the same, with additional `Route` resources declared that reference a `VpcPeeringConnection`: <https://github.com/pulumi/examples/blob/45eeabec900da9f8d2446d36879887828560f086/aws-ts-stackreference-architecture/networking/src/vpc.ts#L311-L335>

You bet, let me know if it helps! There's a bunch of code in there, but I think those are the resources and relationships you're looking for

I got it working thanks for the tips/samples