I think this example should do exactly what you're looking for.
One thing to be aware of is that when you're "getting" the pre-deployed lambda function, you're just getting values from it (i.e. the ARN) but you won't be able to manage it with Pulumi. If you want to do that you'll need to import it
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.
