add cluster storage tier configuration (#264)

* add cluster storage tier configuration to cluster

Author: gBeridze994

gen/go/qdrant/cloud/cluster/v1/cluster.pb.go

@@ -553,6 +553,18 @@ enum ClusterConfigurationRebalanceStrategy {
   CLUSTER_CONFIGURATION_REBALANCE_STRATEGY_BY_COUNT_AND_SIZE = 3;
 }
 
+// ClusterStorageTierConfigurationStorageTierType defines type of storage tier
+enum ClusterStorageConfigurationStorageTierType {
+  // No storage tier type is configured, same as BASE
+  CLUSTER_STORAGE_CONFIGURATION_STORAGE_TIER_TYPE_UNSPECIFIED = 0;
+  // Base pre-configured type
+  CLUSTER_STORAGE_CONFIGURATION_STORAGE_TIER_TYPE_COST_OPTIMISED = 1;
+  // Mid tier pre-configured type
+  CLUSTER_STORAGE_CONFIGURATION_STORAGE_TIER_TYPE_BALANCED = 2;
+  // Most performant pre-configured type
+  CLUSTER_STORAGE_CONFIGURATION_STORAGE_TIER_TYPE_PERFORMANCE = 3;
+}
+
 // A ClusterConfiguration represents the configuration of a cluster.
 message ClusterConfiguration {
   // Timestamp when the cluster configuration was last updated.
@@ -644,6 +656,8 @@ message ClusterConfiguration {
   // List of topologySpreadConstraints for this cluster in a hybrid cloud environment.
   // It is ignored for managed cloud clusters. This is an optional field
   repeated common.v1.TopologySpreadConstraint topology_spread_constraints = 25 [(buf.validate.field).repeated = {max_items: 10}];
+  // Storage IOPS and Throughput configuration, defaults to COST_OPTIMISED storage configuration
+  optional ClusterStorageConfiguration cluster_storage_configuration = 26;
 }
 
 // DatabaseConfigurationLogLevel defines the supported logging levels for the
@@ -858,6 +872,14 @@ message Toleration {
   }];
 }
 
+// ClusterStorageConfiguration defines Storage IOPS and Throughput configuration
+message ClusterStorageConfiguration {
+  // Type of storage tier
+  ClusterStorageConfigurationStorageTierType storage_tier_type = 1;
+  // We might allow custom IOPS and Throughput values configuration in the future,
+  // that's why ClusterStorageConfiguration is a separate message and not just a field
+}
+
 // Defines the operational or transitional state of the Qdrant cluster.
 enum ClusterPhase {
   // The phase is unknown or not specified. Should not normally be used.