Attach Ebs volume while creating EC2 instance

Terraform CDK for Terraform
1

Hello,

I am creating and EC2 instance and also passing ebsBlockDevice in config. it is creating ebs volume but not mounting it and also not getting updated with config. do we have any way to achieve this ?

2

Is this a new instance or an existing instance? It seems like ebsBlockDevice only applies on creation (docs).

Could also trying creating the volume and using VolumeAttachment