Connectors: Filter inference connectors without existing endpoints (#217641)

## Summary

Updated the `getAll` method in the actions client to exclude inference
connectors that lack inference endpoints.

### Checklist


- [x] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios
- [x] The PR description includes the appropriate Release Notes section,
and the correct `release_note:*` label is applied per the
[guidelines](https://www.elastic.co/guide/en/kibana/master/contributing.html#kibana-release-notes-process)

x-pack/platform/plugins/shared/actions/server/application/connector/methods/get_all/get_all.test.ts

@@ -25,6 +25,7 @@ import type { Logger } from '@kbn/logging';
 import { eventLogClientMock } from '@kbn/event-log-plugin/server/event_log_client.mock';
 import type { ActionTypeRegistry } from '../../../../action_type_registry';
 import { getAllUnsecured } from './get_all';
+import type { InferenceInferenceEndpointInfo } from '@elastic/elasticsearch/lib/api/types';
 
 jest.mock('@kbn/core-saved-objects-utils-server', () => {
   const actual = jest.requireActual('@kbn/core-saved-objects-utils-server');
@@ -585,6 +586,84 @@ describe('getAll()', () => {
 
       expect(logger.warn).not.toHaveBeenCalled();
     });
+
+    test('filters out inference connectors without endpoints', async () => {
+      unsecuredSavedObjectsClient.find.mockResolvedValueOnce({
+        total: 1,
+        per_page: 10,
+        page: 1,
+        saved_objects: [],
+      });
+
+      scopedClusterClient.asInternalUser.search.mockResponse(
+        // @ts-expect-error not full search response
+        {
+          aggregations: {
+            testPreconfigured01: { doc_count: 2 },
+            testPreconfigured02: { doc_count: 2 },
+          },
+        }
+      );
+
+      scopedClusterClient.asInternalUser.inference.get.mockResolvedValueOnce({
+        endpoints: [{ inference_id: '2' } as InferenceInferenceEndpointInfo],
+      });
+
+      actionsClient = new ActionsClient({
+        logger,
+        actionTypeRegistry,
+        unsecuredSavedObjectsClient,
+        scopedClusterClient,
+        kibanaIndices,
+        actionExecutor,
+        bulkExecutionEnqueuer,
+        request,
+        authorization: authorization as unknown as ActionsAuthorization,
+        inMemoryConnectors: [
+          {
+            id: 'testPreconfigured01',
+            actionTypeId: '.inference',
+            name: 'test1',
+            config: {
+              inferenceId: '1',
+            },
+            secrets: {},
+            isDeprecated: false,
+            isMissingSecrets: false,
+            isPreconfigured: false,
+            isSystemAction: true,
+          },
+          {
+            id: 'testPreconfigured02',
+            actionTypeId: '.inference',
+            name: 'test2',
+            config: {
+              inferenceId: '2',
+            },
+            secrets: {},
+            isDeprecated: false,
+            isMissingSecrets: false,
+            isPreconfigured: false,
+            isSystemAction: true,
+          },
+        ],
+        connectorTokenClient: connectorTokenClientMock.create(),
+        getEventLogClient,
+      });
+
+      const result = await actionsClient.getAll({ includeSystemActions: true });
+      expect(result).toEqual([
+        {
+          actionTypeId: '.inference',
+          id: 'testPreconfigured02',
+          isDeprecated: false,
+          isPreconfigured: false,
+          isSystemAction: true,
+          name: 'test2',
+          referencedByCount: 2,
+        },
+      ]);
+    });
   });
 
   describe('getAllSystemConnectors()', () => {

x-pack/platform/plugins/shared/actions/server/application/connector/methods/get_all/get_all.ts

@@ -113,15 +113,17 @@ async function getAllHelper({
 
   const mergedResult = [
     ...savedObjectsActions,
-    ...inMemoryConnectors.map((inMemoryConnector) => ({
-      id: inMemoryConnector.id,
-      actionTypeId: inMemoryConnector.actionTypeId,
-      name: inMemoryConnector.name,
-      isPreconfigured: inMemoryConnector.isPreconfigured,
-      isDeprecated: isConnectorDeprecated(inMemoryConnector),
-      isSystemAction: inMemoryConnector.isSystemAction,
-      ...(inMemoryConnector.exposeConfig ? { config: inMemoryConnector.config } : {}),
-    })),
+    ...(await filterInferenceConnectors(esClient, inMemoryConnectors)).map((connector) => {
+      return {
+        id: connector.id,
+        actionTypeId: connector.actionTypeId,
+        name: connector.name,
+        isPreconfigured: connector.isPreconfigured,
+        isDeprecated: isConnectorDeprecated(connector),
+        isSystemAction: connector.isSystemAction,
+        ...(connector.exposeConfig ? { config: connector.config } : {}),
+      };
+    }),
   ].sort((a, b) => a.name.localeCompare(b.name));
 
   const connectors = await injectExtraFindData({
@@ -238,3 +240,37 @@ async function injectExtraFindData({
     referencedByCount: aggregationResult.aggregations[connector.id].doc_count,
   }));
 }
+
+/**
+ * Filters out inference connectors that do not have an endpoint.
+ * It requires a connector config in order to retrieve the inference id.
+ *
+ * @param esClient
+ * @param connectors
+ * @returns
+ */
+export async function filterInferenceConnectors(
+  esClient: ElasticsearchClient,
+  connectors: InMemoryConnector[]
+): Promise<InMemoryConnector[]> {
+  let result = connectors;
+
+  if (result.some((connector) => connector.actionTypeId === '.inference')) {
+    try {
+      // Get all inference endpoints to filter out inference connector without endpoints
+      const inferenceEndpoints = await esClient.inference.get();
+      result = result.filter((connector) => {
+        if (connector.actionTypeId !== '.inference') return true;
+
+        const inferenceEndpoint = inferenceEndpoints.endpoints.find(
+          (endpoint) => endpoint.inference_id === connector.config?.inferenceId
+        );
+        return inferenceEndpoint !== undefined;
+      });
+    } catch (e) {
+      // If we can't get the inference endpoints, we just return all connectors
+    }
+  }
+
+  return result;
+}