METHOD AND APPARATUS FOR MANAGING CLOUD SERVICES USING SMART CONTRACTS AND BLOCKCHAINS IN A FEDERATION OF CLOUD PROVIDERS

摘要

A first data center receives a request, from a tenant, to access a first service. Responsive to determining that the tenant is not associated with a delegation contract, the first data center records a delegation contract for the tenant. A second data center receives a request, from the 5 tenant, to access a second service, where the second data center is physically separate from the first data center. Responsive to determining that the tenant is associated with the delegation contract recorded in the blockchain database, the second data center causes an update of the delegation contract in the blockchain database; causes the second service to provide access to the tenant; transmits, to the tenant, a confirmation that the second service can be accessed, and 0 transmits an update to the first data center indicating that the delegation contract has been updated to include a second service offer.