Query Caching: Add per-panel query caching TTL (#61968)

* *Create Caching Config interface and OSS impl
*Create front-end facing DS Cache config
*Populate Caching Config on Datasource DTO
*Update OSS wire deps

* fix unit test

* handle query caching TTL override on the frontend

* Make sure the override works with pubdash

* move caching config to the right place in the ds info

* move caching config logic to enterprise index hook

* move queryCachingTTL to pubdash query payload

* Remove  from metadata (not needed)

* rename struct and add comment

* remove invalid wire dependency

* manual revert of 395c74b

* fix frontend test

* fix backend test

* fix tests for real this time

* truly fix frontend test

* fix back end unit test for real

packages/grafana-data/src/types/datasource.ts

@@ -145,6 +145,10 @@ interface PluginMetaQueryOptions {
   maxDataPoints?: boolean;
   minInterval?: boolean;
 }
+interface PluginQueryCachingConfig {
+  enabled?: boolean;
+  TTLMs?: number;
+}
 
 export interface DataSourcePluginComponents<
   DSType extends DataSourceApi<TQuery, TOptions>,
@@ -224,6 +228,7 @@ abstract class DataSourceApi<
     this.id = instanceSettings.id;
     this.type = instanceSettings.type;
     this.meta = instanceSettings.meta;
+    this.cachingConfig = instanceSettings.cachingConfig;
     this.uid = instanceSettings.uid;
   }
 
@@ -301,6 +306,12 @@ abstract class DataSourceApi<
    */
   meta: DataSourcePluginMeta;
 
+  /**
+   * Information about the datasource's query caching configuration
+   * When the caching feature is disabled, this config will always be falsy
+   */
+  cachingConfig?: PluginQueryCachingConfig;
+
   /**
    * Used by alerting to check if query contains template variables
    */
@@ -487,6 +498,7 @@ export interface DataQueryRequest<TQuery extends DataQuery = DataQuery> {
   app: CoreApp | string;
 
   cacheTimeout?: string | null;
+  queryCachingTTL?: number | null;
   rangeRaw?: RawTimeRange;
   timeInfo?: string; // The query time description (blue text in the upper right)
   panelId?: number;
@@ -586,6 +598,7 @@ export interface DataSourceInstanceSettings<T extends DataSourceJsonData = DataS
   type: string;
   name: string;
   meta: DataSourcePluginMeta;
+  cachingConfig?: PluginQueryCachingConfig;
   readOnly: boolean;
   url?: string;
   jsonData: T;

packages/grafana-data/src/types/queryRunner.ts

@@ -23,6 +23,7 @@ export interface QueryRunnerOptions {
   minInterval: string | undefined | null;
   scopedVars?: ScopedVars;
   cacheTimeout?: string;
+  queryCachingTTL?: number;
   app?: string;
 }