Migration to SAP Commerce Cloud CCV2

When running commerce on the SAP Infrastructure (v1) deployment and maintenance of the environment are managed by SAP Cloud Services. The customer or partner is responsible for build packages for deployment and request to deploy these packages by SAP Cloud Services.

From hybris to SAP Commerce Cloud v2, Acorel

With the SAP Commerce Cloud running on public infrastructure (v2), the process to provision environments, manage access control, build and deploy packages is self-manged by using the SAP Commerce Cloud Portal.

How to migrate from CCV1 to CCV2 public cloud platform ?