diff --git a/x-pack/plugins/infra/public/components/log_stream/log_stream.stories.mdx b/x-pack/plugins/infra/public/components/log_stream/log_stream.stories.mdx
index 7f1636b00d24e..87419a9bfbe78 100644
--- a/x-pack/plugins/infra/public/components/log_stream/log_stream.stories.mdx
+++ b/x-pack/plugins/infra/public/components/log_stream/log_stream.stories.mdx
@@ -3,10 +3,11 @@ import { defer, of, Subject } from 'rxjs';
 import { delay } from 'rxjs/operators';
 
 import { I18nProvider } from '@kbn/i18n/react';
+import { KBN_FIELD_TYPES } from '../../../../../../src/plugins/data/public';
 import { EuiThemeProvider } from '../../../../../../src/plugins/kibana_react/common';
 import { KibanaContextProvider } from '../../../../../../src/plugins/kibana_react/public';
-
 import { LOG_ENTRIES_SEARCH_STRATEGY } from '../../../common/search_strategies/log_entries/log_entries';
+import { createIndexPatternMock, createIndexPatternsMock } from '../../hooks/use_kibana_index_patterns.mock';
 import { DEFAULT_SOURCE_CONFIGURATION } from '../../test_utils/source_configuration';
 import { generateFakeEntries, ENTRIES_EMPTY } from '../../test_utils/entries';
 
@@ -18,6 +19,45 @@ export const startTimestamp = 1595145600000;
 export const endTimestamp = startTimestamp + 15 * 60 * 1000;
 
 export const dataMock = {
+  indexPatterns: createIndexPatternsMock(500, [
+    createIndexPatternMock({
+      id: 'some-test-id',
+      title: 'mock-index-pattern-*',
+      timeFieldName: '@timestamp',
+      fields: [
+        {
+          name: '@timestamp',
+          type: KBN_FIELD_TYPES.DATE,
+          searchable: true,
+          aggregatable: true,
+        },
+        {
+          name: 'event.dataset',
+          type: KBN_FIELD_TYPES.STRING,
+          searchable: true,
+          aggregatable: true,
+        },
+        {
+          name: 'host.name',
+          type: KBN_FIELD_TYPES.STRING,
+          searchable: true,
+          aggregatable: true,
+        },
+        {
+          name: 'log.level',
+          type: KBN_FIELD_TYPES.STRING,
+          searchable: true,
+          aggregatable: true,
+        },
+        {
+          name: 'message',
+          type: KBN_FIELD_TYPES.STRING,
+          searchable: true,
+          aggregatable: true,
+        },
+      ],
+    })
+  ]),
   search: {
     search: ({ params }, options) => {
       return defer(() => {
@@ -68,10 +108,16 @@ export const dataMock = {
 };
 
 
-export const fetch = function (url, params) {
+export const fetch = async function (url, params) {
   switch (url) {
     case '/api/infra/log_source_configurations/default':
       return DEFAULT_SOURCE_CONFIGURATION;
+    case '/api/infra/log_source_configurations/default/status':
+      return {
+        data: {
+          logIndexStatus: 'available',
+        }
+      };
     default:
       return {};
   }
diff --git a/x-pack/plugins/infra/public/hooks/use_kibana_index_patterns.mock.tsx b/x-pack/plugins/infra/public/hooks/use_kibana_index_patterns.mock.tsx
index dbf032415cb99..9d3a611cff88d 100644
--- a/x-pack/plugins/infra/public/hooks/use_kibana_index_patterns.mock.tsx
+++ b/x-pack/plugins/infra/public/hooks/use_kibana_index_patterns.mock.tsx
@@ -21,7 +21,7 @@ import { Pick2 } from '../../common/utility_types';
 
 type MockIndexPattern = Pick<
   IndexPattern,
-  'id' | 'title' | 'type' | 'getTimeField' | 'isTimeBased' | 'getFieldByName'
+  'id' | 'title' | 'type' | 'getTimeField' | 'isTimeBased' | 'getFieldByName' | 'getComputedFields'
 >;
 export type MockIndexPatternSpec = Pick<
   IIndexPattern,
@@ -35,23 +35,7 @@ export const MockIndexPatternsKibanaContextProvider: React.FC<{
   mockIndexPatterns: MockIndexPatternSpec[];
 }> = ({ asyncDelay, children, mockIndexPatterns }) => {
   const indexPatterns = useMemo(
-    () =>
-      createIndexPatternsMock(
-        asyncDelay,
-        mockIndexPatterns.map(({ id, title, type = undefined, fields, timeFieldName }) => {
-          const indexPatternFields = fields.map((fieldSpec) => new IndexPatternField(fieldSpec));
-
-          return {
-            id,
-            title,
-            type,
-            getTimeField: () => indexPatternFields.find(({ name }) => name === timeFieldName),
-            isTimeBased: () => timeFieldName != null,
-            getFieldByName: (fieldName) =>
-              indexPatternFields.find(({ name }) => name === fieldName),
-          };
-        })
-      ),
+    () => createIndexPatternsMock(asyncDelay, mockIndexPatterns.map(createIndexPatternMock)),
     [asyncDelay, mockIndexPatterns]
   );
 
@@ -71,7 +55,7 @@ export const MockIndexPatternsKibanaContextProvider: React.FC<{
   );
 };
 
-const createIndexPatternsMock = (
+export const createIndexPatternsMock = (
   asyncDelay: number,
   indexPatterns: MockIndexPattern[]
 ): {
@@ -93,3 +77,36 @@ const createIndexPatternsMock = (
     },
   };
 };
+
+export const createIndexPatternMock = ({
+  id,
+  title,
+  type = undefined,
+  fields,
+  timeFieldName,
+}: MockIndexPatternSpec): MockIndexPattern => {
+  const indexPatternFields = fields.map((fieldSpec) => new IndexPatternField(fieldSpec));
+
+  return {
+    id,
+    title,
+    type,
+    getTimeField: () => indexPatternFields.find(({ name }) => name === timeFieldName),
+    isTimeBased: () => timeFieldName != null,
+    getFieldByName: (fieldName) => indexPatternFields.find(({ name }) => name === fieldName),
+    getComputedFields: () => ({
+      docvalueFields: [],
+      runtimeFields: indexPatternFields.reduce((accumulatedRuntimeFields, field) => {
+        if (field.runtimeField != null) {
+          return {
+            ...accumulatedRuntimeFields,
+            [field.name]: field.runtimeField,
+          };
+        }
+        return accumulatedRuntimeFields;
+      }, {}),
+      scriptFields: {},
+      storedFields: [],
+    }),
+  };
+};