For installing the Issuer Node what are the requirements in terms of infrastructure (cloud hosting, storage, database etc.)?

You can find the requirements that you need on prerequisites.

     1. You need to install Go 1.19 and Docker. 

     2. When you install Docker, run the Docker container and it will bring up all the services that are required to Issuer             Node, which are:

• Postgres (for the database)

• Redis (for catching the content) 

• Hashicorp vault (for storing the keys).