[Index Management] If an index template has a default_pipeline, show a link to it

x-pack/platform/plugins/shared/index_management/public/application/constants/index.ts

@@ -10,3 +10,5 @@ export const REACT_ROOT_ID = 'indexManagementReactRoot';
 export const ENRICH_POLICIES_REQUIRED_PRIVILEGES = ['manage_enrich'];
 
 export * from './ilm_locator';
+
+export * from './ingest_pipelines_locator';

x-pack/platform/plugins/shared/index_management/public/application/constants/ingest_pipelines_locator.ts

@@ -0,0 +1,10 @@
+/*
+ * 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 INGEST_PIPELINES_LOCATOR_ID = 'INGEST_PIPELINES_APP_LOCATOR';
+export const INGEST_PIPELINES_EDIT = 'pipeline_edit';
+export const INGEST_PIPELINES_LIST = 'pipelines_list';

x-pack/platform/plugins/shared/index_management/public/application/sections/home/template_list/template_details/tabs/tab_summary.tsx

@@ -25,8 +25,9 @@ import { useAppContext } from '../../../../../app_context';
 import { serializeAsESLifecycle } from '../../../../../../../common/lib';
 import { getLifecycleValue } from '../../../../../lib/data_streams';
 import { TemplateDeserialized } from '../../../../../../../common';
-import { ILM_PAGES_POLICY_EDIT } from '../../../../../constants';
+import { ILM_PAGES_POLICY_EDIT, INGEST_PIPELINES_EDIT } from '../../../../../constants';
 import { useIlmLocator } from '../../../../../services/use_ilm_locator';
+import { useIngestPipelinesLocator } from '../../../../../services/use_ingest_pipeline_locator';
 import { allowAutoCreateRadioIds } from '../../../../../../../common/constants';
 import { indexModeLabels } from '../../../../../lib/index_mode_labels';
 
@@ -66,6 +67,13 @@ export const TabSummary: React.FunctionComponent<Props> = ({ templateDetails })
   const { history, core } = useAppContext();
   const ilmPolicyLink = useIlmLocator(ILM_PAGES_POLICY_EDIT, ilmPolicy?.name);
 
+  // Compute the linked ingest pipeline URL
+  const linkedIngestPipeline = templateDetails?.template?.settings?.index?.default_pipeline;
+  const linkedIngestPipelineUrl = useIngestPipelinesLocator(
+    INGEST_PIPELINES_EDIT,
+    linkedIngestPipeline
+  );
+
   return (
     <>
       <EuiFlexGroup data-test-subj="summaryTab">
@@ -154,6 +162,25 @@ export const TabSummary: React.FunctionComponent<Props> = ({ templateDetails })
                 </EuiDescriptionListDescription>
               </>
             )}
+
+            {linkedIngestPipeline && (
+              <>
+                <EuiDescriptionListTitle>
+                  <FormattedMessage
+                    id="xpack.idxMgmt.templateDetails.summaryTab.linkedIngestPipelineDescriptionListTitle"
+                    defaultMessage="Default pipeline"
+                  />
+                </EuiDescriptionListTitle>
+                <EuiDescriptionListDescription>
+                  <EuiLink
+                    onClick={() => core.application.navigateToUrl(linkedIngestPipelineUrl)}
+                    data-test-subj="linkedIngestPipeline"
+                  >
+                    {linkedIngestPipeline}
+                  </EuiLink>
+                </EuiDescriptionListDescription>
+              </>
+            )}
           </EuiDescriptionList>
         </EuiFlexItem>
 

x-pack/platform/plugins/shared/index_management/public/application/services/use_ingest_pipeline_locator.ts

@@ -0,0 +1,26 @@
+/*
+ * 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 { useLocatorUrl } from '@kbn/share-plugin/public';
+import { useAppContext } from '../app_context';
+import {
+  INGEST_PIPELINES_LOCATOR_ID,
+  INGEST_PIPELINES_EDIT,
+  INGEST_PIPELINES_LIST,
+} from '../constants';
+
+export const useIngestPipelinesLocator = (
+  page: typeof INGEST_PIPELINES_EDIT | typeof INGEST_PIPELINES_LIST,
+  pipelineId?: string
+): string => {
+  const ctx = useAppContext();
+  const locator =
+    pipelineId === undefined ? null : ctx.url.locators.get(INGEST_PIPELINES_LOCATOR_ID)!;
+  const url = useLocatorUrl(locator, { page, pipelineId }, {}, [page, pipelineId]);
+
+  return url;
+};

x-pack/test/functional/apps/index_management/index_templates_tab/index_template_tab.ts

@@ -14,6 +14,7 @@ export default ({ getPageObjects, getService }: FtrProviderContext) => {
   const security = getService('security');
   const testSubjects = getService('testSubjects');
   const es = getService('es');
+  const browser = getService('browser');
 
   const INDEX_TEMPLATE_NAME = 'index-template-test-name';
 
@@ -28,10 +29,16 @@ export default ({ getPageObjects, getService }: FtrProviderContext) => {
     });
 
     afterEach(async () => {
-      await es.indices.deleteIndexTemplate({
-        name: INDEX_TEMPLATE_NAME,
-      });
-      await testSubjects.click('reloadButton');
+      await es.indices.deleteIndexTemplate(
+        {
+          name: INDEX_TEMPLATE_NAME,
+        },
+        { ignore: [404] }
+      );
+
+      if (await testSubjects.exists('reloadButton')) {
+        await testSubjects.click('reloadButton');
+      }
     });
 
     describe('index template creation', () => {
@@ -221,5 +228,48 @@ export default ({ getPageObjects, getService }: FtrProviderContext) => {
         });
       });
     });
+
+    describe('Index template list', () => {
+      const TEST_TEMPLATE = 'a_test_template';
+      const INDEX_PATTERN = `index_pattern_${Math.random()}`;
+
+      before(async () => {
+        await es.indices.putIndexTemplate({
+          name: TEST_TEMPLATE,
+          body: {
+            index_patterns: [INDEX_PATTERN],
+            template: {
+              settings: {
+                default_pipeline: 'test_pipeline',
+              },
+            },
+          },
+        });
+
+        // Navigate to the index management
+        await pageObjects.common.navigateToApp('indexManagement');
+        // Navigate to the templates tab
+        await pageObjects.indexManagement.changeTabs('templatesTab');
+      });
+
+      after(async () => {
+        await es.indices.deleteIndexTemplate({ name: TEST_TEMPLATE }, { ignore: [404] });
+      });
+
+      it('shows link to ingest pipeline when default pipeline is set', async () => {
+        // Open details flyout
+        await pageObjects.indexManagement.clickIndexTemplateAt(0);
+
+        // Click on the linked ingest pipeline button
+        const linkedPipelineButton = await testSubjects.find('linkedIngestPipeline');
+        await linkedPipelineButton.click();
+
+        // Expect to navigate to the ingest pipeline page
+        await pageObjects.header.waitUntilLoadingHasFinished();
+        // We should've now navigated to the ingest pipelines app
+        const currentUrl = await browser.getCurrentUrl();
+        expect(currentUrl).to.contain('/ingest/ingest_pipelines/edit/test_pipeline');
+      });
+    });
   });
 };

x-pack/test/functional/page_objects/index_management_page.ts

@@ -38,6 +38,11 @@ export function IndexManagementPageProvider({ getService }: FtrProviderContext)
       await policyDetailsLinks[indexOfRow].click();
     },
 
+    async clickIndexTemplateAt(indexOfRow: number): Promise<void> {
+      const indexTemplateDetailsLink = await testSubjects.findAll('templateDetailsLink');
+      await indexTemplateDetailsLink[indexOfRow].click();
+    },
+
     async clickBulkEditDataRetention(dataStreamNames: string[]): Promise<void> {
       for (const dsName of dataStreamNames) {
         const checkbox = await testSubjects.find(`checkboxSelectRow-${dsName}`);