Bug 2385960

Feature: Enable NFS QoS while NFS cluster creation Reason: Earlier user can configure QoS only once nfs cluster is create. NOw user can enable it while creating NFS cluster Result: To configure QOS while NFS cluster creation, Spec file will have cluster_qos_config field with value dict. The cluster_qos_config block will look like the following service_type: nfs service_id: mynfs1 placement: count: 3 spec: cluster_qos_config: enable_qos: bool enable_bw_control: bool combined_rw_bw_control: bool qos_type: str (PerShare|PerClient|PerShare_PerClient) max_export_read_bw: str max_export_write_bw: str max_client_write_bw: str max_client_read_bw: str max_export_combined_bw: str max_client_combined_bw: str enable_iops_control: bool max_export_iops: int max_client_iops: int 1. If enable_bw_control or enable_iops_control is disabled, the associated QoS configuration will not be applied, and any related parameters will be ignored. 2. This spec implementation follows same validation as qos enable command, which are as follows. If any other parameter is passed then service will not come up. For bandwidth control: 1. If combined bandwith control is disabled a. If qos_type is pershare, then max_export_write_bw and max_export_read_bw parameters are compulsory b. If qos_type is perclient, then max_client_write_bw and max_client_read_bw parameters are compulsory c. If qos_type is pershare_perclient then max_export_write_bw, max_export_read_bw, max_client_write_bw and max_client_read_bw are compulsory parameters 2. If combined bandwidth control is enabled a. If qos_type is pershare, then max_export_combined_bw parameter is compulsory b. If qos_type is perclient, then max_client_combined_bw parameter is compulsory c. If qos_type is pershare_perclient, then max_export_combined_bw and max_client_combined_bw parameters are compulsory For IOPS control: a. If qos_type is pershare, then max_export_iops is compulsory b. If qos_type is perclient, then max_client_iops is compulsory c. If qos_type is pershare_perclient then both max_export_iops and max_client_iops are compulsory parameters Along with spec file, 'nfs cluster create' command will also able to set qos. Currently the command accept input yaml with KMIP fields, so along with that you can provide 'cluster_qos_config' field in yaml.