Create task to cleanup action execution failures

x-pack/plugins/actions/server/actions_client.test.ts

@@ -413,6 +413,12 @@ describe('create()', () => {
       proxyOnlyHosts: undefined,
       maxResponseContentLength: new ByteSizeValue(1000000),
       responseTimeout: moment.duration('60s'),
+      cleanupFailedExecutionsTask: {
+        enabled: true,
+        cleanupInterval: schema.duration().validate('5m'),
+        idleInterval: schema.duration().validate('1h'),
+        pageSize: 100,
+      },
     });
 
     const localActionTypeRegistryParams = {

x-pack/plugins/actions/server/actions_config.test.ts

@@ -5,6 +5,7 @@
  * 2.0.
  */
 
+import { schema } from '@kbn/config-schema';
 import { ByteSizeValue } from '@kbn/config-schema';
 import { ActionsConfig } from './config';
 import {
@@ -24,6 +25,12 @@ const defaultActionsConfig: ActionsConfig = {
   rejectUnauthorized: true,
   maxResponseContentLength: new ByteSizeValue(1000000),
   responseTimeout: moment.duration(60000),
+  cleanupFailedExecutionsTask: {
+    enabled: true,
+    cleanupInterval: schema.duration().validate('5m'),
+    idleInterval: schema.duration().validate('1h'),
+    pageSize: 100,
+  },
 };
 
 describe('ensureUriAllowed', () => {

x-pack/plugins/actions/server/cleanup_failed_executions/cleanup_tasks.test.ts

@@ -0,0 +1,126 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import type { SavedObjectsFindResult, SavedObjectsSerializer } from 'kibana/server';
+import { loggingSystemMock, elasticsearchServiceMock } from '../../../../../src/core/server/mocks';
+import { spacesMock } from '../../../spaces/server/mocks';
+import { CleanupTasksOpts, cleanupTasks } from './cleanup_tasks';
+import { TaskInstance } from '../../../task_manager/server';
+import { ApiResponse, estypes } from '@elastic/elasticsearch';
+
+describe('cleanupTasks', () => {
+  const logger = loggingSystemMock.create().get();
+  const esClient = elasticsearchServiceMock.createElasticsearchClient();
+  const spaces = spacesMock.createStart();
+  const savedObjectsSerializer = ({
+    generateRawId: jest
+      .fn()
+      .mockImplementation((namespace: string | undefined, type: string, id: string) => {
+        const namespacePrefix = namespace ? `${namespace}:` : '';
+        return `${namespacePrefix}${type}:${id}`;
+      }),
+  } as unknown) as SavedObjectsSerializer;
+
+  const cleanupTasksOpts: CleanupTasksOpts = {
+    logger,
+    esClient,
+    spaces,
+    savedObjectsSerializer,
+    kibanaIndex: '.kibana',
+    taskManagerIndex: '.kibana_task_manager',
+    tasks: [],
+  };
+
+  const taskSO: SavedObjectsFindResult<TaskInstance> = {
+    id: '123',
+    type: 'task',
+    references: [],
+    score: 0,
+    attributes: {
+      id: '123',
+      taskType: 'foo',
+      scheduledAt: new Date(),
+      state: {},
+      runAt: new Date(),
+      startedAt: new Date(),
+      retryAt: new Date(),
+      ownerId: '234',
+      params: { spaceId: undefined, actionTaskParamsId: '123' },
+      schedule: { interval: '5m' },
+    },
+  };
+
+  beforeEach(() => {
+    esClient.bulk.mockReset();
+  });
+
+  it('should skip cleanup when there are no tasks to cleanup', async () => {
+    const result = await cleanupTasks(cleanupTasksOpts);
+    expect(result).toEqual({
+      success: true,
+      successCount: 0,
+      failureCount: 0,
+    });
+    expect(esClient.bulk).not.toHaveBeenCalled();
+  });
+
+  it('should delete action_task_params and task objects', async () => {
+    esClient.bulk.mockResolvedValue(({
+      body: { items: [], errors: false, took: 1 },
+    } as unknown) as ApiResponse<estypes.BulkResponse, unknown>);
+    const result = await cleanupTasks({
+      ...cleanupTasksOpts,
+      tasks: [taskSO],
+    });
+    expect(esClient.bulk).toHaveBeenCalledWith({
+      body: [{ delete: { _index: cleanupTasksOpts.kibanaIndex, _id: 'action_task_params:123' } }],
+    });
+    expect(esClient.bulk).toHaveBeenCalledWith({
+      body: [{ delete: { _index: cleanupTasksOpts.taskManagerIndex, _id: 'task:123' } }],
+    });
+    expect(result).toEqual({
+      success: true,
+      successCount: 1,
+      failureCount: 0,
+    });
+  });
+
+  it('should not delete the task if the action_task_params failed to delete', async () => {
+    esClient.bulk.mockResolvedValue(({
+      body: {
+        items: [
+          {
+            delete: {
+              _index: cleanupTasksOpts.kibanaIndex,
+              _id: 'action_task_params:123',
+              status: 500,
+              result: 'Failure',
+              error: true,
+            },
+          },
+        ],
+        errors: true,
+        took: 1,
+      },
+    } as unknown) as ApiResponse<estypes.BulkResponse, unknown>);
+    const result = await cleanupTasks({
+      ...cleanupTasksOpts,
+      tasks: [taskSO],
+    });
+    expect(esClient.bulk).toHaveBeenCalledWith({
+      body: [{ delete: { _index: cleanupTasksOpts.kibanaIndex, _id: 'action_task_params:123' } }],
+    });
+    expect(esClient.bulk).not.toHaveBeenCalledWith({
+      body: [{ delete: { _index: cleanupTasksOpts.taskManagerIndex, _id: 'task:123' } }],
+    });
+    expect(result).toEqual({
+      success: false,
+      successCount: 0,
+      failureCount: 1,
+    });
+  });
+});

x-pack/plugins/actions/server/cleanup_failed_executions/cleanup_tasks.ts

@@ -0,0 +1,118 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import {
+  Logger,
+  ElasticsearchClient,
+  SavedObjectsFindResult,
+  SavedObjectsSerializer,
+} from 'kibana/server';
+import { TaskInstance } from '../../../task_manager/server';
+import { SpacesPluginStart } from '../../../spaces/server';
+import { bulkDelete, extractBulkResponseDeleteFailures } from './lib';
+import { spaceIdToNamespace } from '../lib';
+
+export interface CleanupTasksOpts {
+  logger: Logger;
+  esClient: ElasticsearchClient;
+  tasks: Array<SavedObjectsFindResult<TaskInstance>>;
+  spaces?: SpacesPluginStart;
+  savedObjectsSerializer: SavedObjectsSerializer;
+  kibanaIndex: string;
+  taskManagerIndex: string;
+}
+
+export interface CleanupTasksResult {
+  success: boolean;
+  successCount: number;
+  failureCount: number;
+}
+
+/**
+ * Cleanup tasks
+ *
+ * This function receives action execution tasks that are in a failed state, removes
+ * the linked "action_task_params" object first and then if successful, the task manager's task.
+ */
+export async function cleanupTasks({
+  logger,
+  esClient,
+  tasks,
+  spaces,
+  savedObjectsSerializer,
+  kibanaIndex,
+  taskManagerIndex,
+}: CleanupTasksOpts): Promise<CleanupTasksResult> {
+  const deserializedTasks = tasks.map((task) => ({
+    ...task,
+    attributes: {
+      ...task.attributes,
+      params:
+        typeof task.attributes.params === 'string'
+          ? JSON.parse(task.attributes.params)
+          : task.attributes.params || {},
+    },
+  }));
+
+  // Remove accumulated action task params
+  const actionTaskParamIdsToDelete = deserializedTasks.map((task) => {
+    const { spaceId, actionTaskParamsId } = task.attributes.params;
+    const namespace = spaceIdToNamespace(spaces, spaceId);
+    return savedObjectsSerializer.generateRawId(
+      namespace,
+      'action_task_params',
+      actionTaskParamsId
+    );
+  });
+  const actionTaskParamBulkDeleteResult = await bulkDelete(
+    esClient,
+    kibanaIndex,
+    actionTaskParamIdsToDelete
+  );
+  const failedActionTaskParams = actionTaskParamBulkDeleteResult
+    ? extractBulkResponseDeleteFailures(actionTaskParamBulkDeleteResult)
+    : [];
+  if (failedActionTaskParams?.length) {
+    logger.debug(
+      `Failed to delete the following action_task_params [${JSON.stringify(
+        failedActionTaskParams
+      )}]`
+    );
+  }
+
+  // Remove accumulated tasks
+  const taskIdsToDelete = deserializedTasks
+    .map((task) => {
+      const { spaceId, actionTaskParamsId } = task.attributes.params;
+      const namespace = spaceIdToNamespace(spaces, spaceId);
+      const rawId = savedObjectsSerializer.generateRawId(
+        namespace,
+        'action_task_params',
+        actionTaskParamsId
+      );
+      // Avoid removing tasks that failed to remove linked objects
+      if (failedActionTaskParams?.find((item) => item._id === rawId)) {
+        return null;
+      }
+      const rawTaskId = savedObjectsSerializer.generateRawId(undefined, 'task', task.id);
+      return rawTaskId;
+    })
+    .filter((id) => !!id) as string[];
+  const taskBulkDeleteResult = await bulkDelete(esClient, taskManagerIndex, taskIdsToDelete);
+  const failedTasks = taskBulkDeleteResult
+    ? extractBulkResponseDeleteFailures(taskBulkDeleteResult)
+    : [];
+  if (failedTasks?.length) {
+    logger.debug(`Failed to delete the following tasks [${JSON.stringify(failedTasks)}]`);
+  }
+
+  return {
+    success: failedActionTaskParams?.length === 0 && failedTasks.length === 0,
+    successCount: tasks.length - failedActionTaskParams.length - failedTasks.length,
+    failureCount: failedActionTaskParams.length + failedTasks.length,
+  };
+}

x-pack/plugins/actions/server/cleanup_failed_executions/constants.ts

@@ -0,0 +1,9 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+export const TASK_TYPE = 'cleanup_failed_action_executions';
+export const TASK_ID = `Actions-${TASK_TYPE}`;

x-pack/plugins/actions/server/cleanup_failed_executions/ensure_scheduled.test.ts

@@ -0,0 +1,55 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { schema } from '@kbn/config-schema';
+import { ActionsConfig } from '../config';
+import { ensureScheduled } from './ensure_scheduled';
+import { taskManagerMock } from '../../../task_manager/server/mocks';
+import { loggingSystemMock } from '../../../../../src/core/server/mocks';
+
+describe('ensureScheduled', () => {
+  const logger = loggingSystemMock.create().get();
+  const taskManager = taskManagerMock.createStart();
+
+  const config: ActionsConfig['cleanupFailedExecutionsTask'] = {
+    enabled: true,
+    cleanupInterval: schema.duration().validate('5m'),
+    idleInterval: schema.duration().validate('1h'),
+    pageSize: 100,
+  };
+
+  beforeEach(() => jest.resetAllMocks());
+
+  it(`should call task manager's ensureScheduled function with proper params`, async () => {
+    await ensureScheduled(taskManager, logger, config);
+    expect(taskManager.ensureScheduled).toHaveBeenCalledTimes(1);
+    expect(taskManager.ensureScheduled.mock.calls[0]).toMatchInlineSnapshot(`
+      Array [
+        Object {
+          "id": "Actions-cleanup_failed_action_executions",
+          "params": Object {},
+          "schedule": Object {
+            "interval": "5m",
+          },
+          "state": Object {
+            "runs": 0,
+            "total_cleaned_up": 0,
+          },
+          "taskType": "cleanup_failed_action_executions",
+        },
+      ]
+    `);
+  });
+
+  it('should log an error and not throw when ensureScheduled function throws', async () => {
+    taskManager.ensureScheduled.mockRejectedValue(new Error('Fail'));
+    await ensureScheduled(taskManager, logger, config);
+    expect(logger.error).toHaveBeenCalledWith(
+      'Error scheduling Actions-cleanup_failed_action_executions, received Fail'
+    );
+  });
+});

x-pack/plugins/actions/server/cleanup_failed_executions/ensure_scheduled.ts

@@ -0,0 +1,34 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { Logger } from 'kibana/server';
+import { TASK_ID, TASK_TYPE } from './constants';
+import { ActionsConfig } from '../config';
+import { TaskManagerStartContract, asInterval } from '../../../task_manager/server';
+
+export async function ensureScheduled(
+  taskManager: TaskManagerStartContract,
+  logger: Logger,
+  { cleanupInterval }: ActionsConfig['cleanupFailedExecutionsTask']
+) {
+  try {
+    await taskManager.ensureScheduled({
+      id: TASK_ID,
+      taskType: TASK_TYPE,
+      schedule: {
+        interval: asInterval(cleanupInterval.asMilliseconds()),
+      },
+      state: {
+        runs: 0,
+        total_cleaned_up: 0,
+      },
+      params: {},
+    });
+  } catch (e) {
+    logger.error(`Error scheduling ${TASK_ID}, received ${e.message}`);
+  }
+}