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I'm trying to create an EC2 instance that has an extra data volume attached. I have used `Instance`, `Volume` and `VolumeAttachment` to do this.

I'm now trying to figure out how to init the volume and mount it within the instance. I'm doing this via instance user data.

However, when I make changes to `userData` and re-run `pulumi up` I get this error
```* Error attaching volume (vol-0170f920a526fb90d) to instance (i-003ab040459a35189), message: "vol-0170f920a526fb90d is already attached to an instance", code: "VolumeInUse"```
I think this isn't working because the volume is still attached to the old instance. Can pulumi handle detaching the volume?

I think you want to change from plain _userData_ to _cloudinit_ or some other way to run code only on instance creation.

Pulumi cannot attach or detach volumes, it can only deploy the code that does that.