I am working on a tutorial and i have the following command there:
fabric-ca-client register --id.name admin2 --id.type user --id.affiliation org1.department1 --id.attrs '"hf.Registrar.Roles=peer,user",hf.Revoker=true'
I have a few questions.. Why is admin2 used and not admin? what are the roles of admin2 compared to admin? What is admin and hf.Registrar.Roles?