These Output<T> stuff is one of the most frustrating experiences I have with Pulumi. For example:

const sshKey = config.requireSecret("admin_pub_key");

const userData = `
#cloud-config
users:
  - name: ${adminUser}
    ssh-authorized-keys:
      - ${sshKey}
    sudo: ['ALL=(ALL) NOPASSWD:ALL']
    groups: sudo
    shell: /bin/bash
`;

It complains that it cant call toString on an Output<T> object on the "sshKey" variable. I just want get the string value from the secret. As simple as that! Note that in this example I am already inside a string literal. I have tried to create a new variable, following the instructions of using pulumi interpolate, but get the same message. If someone can enlighten me on this, I would be greatfull.