Allows creating storage offerings associated with particular domain(s) and zone(s). In create disk/storage offfering form UI, a mult-select control has been addded to select desired zone(s) and domain select element has been made multi-select.
createDiskOffering API has been modified to allow passing list of domain and zone IDs with keys domainids and zoneids respectively. These lists are stored in DB in cloud.disk_offering_details table with 'domainids' and 'zoneids' key as string of comma separated list of IDs. Response for create, update and list disk offering APIs will return domainids, domainnames, zoneids and zonenames in details object of offering.
listDiskOfferings API has been modified to allow passing zoneid to return only offerings which are associated with the zone.
Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
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