Show error alert if chart is not reachable

frontend/packages/dev-console/src/components/helm/HelmInstallUpgradePage.tsx

@@ -62,6 +62,7 @@ const HelmInstallUpgradePage: React.FunctionComponent<HelmInstallUpgradePageProp
   const [appVersion, setAppVersion] = React.useState<string>('');
   const [chartReadme, setChartReadme] = React.useState<string>('');
   const [chartHasValues, setChartHasValues] = React.useState<boolean>(false);
+  const [chartError, setChartError] = React.useState<Error>(null);
 
   const [initialYamlData, setInitialYamlData] = React.useState<string>('');
   const [initialFormData, setInitialFormData] = React.useState<object>();
@@ -87,9 +88,12 @@ const HelmInstallUpgradePage: React.FunctionComponent<HelmInstallUpgradePageProp
 
     const fetchHelmRelease = async () => {
       let res;
+      let error: Error = null;
       try {
         res = await coFetchJSON(config.helmReleaseApi);
-      } catch {} // eslint-disable-line no-empty
+      } catch (e) {
+        error = e;
+      }
       if (ignore) return;
       const chart: HelmChart = res?.chart || res;
       const chartValues = getChartValuesYAML(chart);
@@ -100,12 +104,13 @@ const HelmInstallUpgradePage: React.FunctionComponent<HelmInstallUpgradePageProp
       setInitialYamlData(valuesYAML);
       setInitialFormData(valuesJSON);
       setInitialFormSchema(valuesSchema);
-      setChartName(chart.metadata.name);
-      setChartVersion(chart.metadata.version);
-      setAppVersion(chart.metadata.appVersion);
+      setChartName(chart?.metadata.name);
+      setChartVersion(chart?.metadata.version);
+      setAppVersion(chart?.metadata.appVersion);
       setChartReadme(getChartReadme(chart));
       setChartHasValues(!!valuesYAML);
       setChartData(chart);
+      setChartError(error);
     };
 
     fetchHelmRelease();
@@ -199,7 +204,7 @@ const HelmInstallUpgradePage: React.FunctionComponent<HelmInstallUpgradePageProp
       });
   };
 
-  if (!chartData) {
+  if (!chartData && !chartError) {
     return <LoadingBox />;
   }
 
@@ -224,6 +229,7 @@ const HelmInstallUpgradePage: React.FunctionComponent<HelmInstallUpgradePageProp
               chartMetaDescription={chartMetaDescription}
               helmActionConfig={config}
               onVersionChange={setChartData}
+              chartError={chartError}
             />
           )}
         </Formik>

frontend/packages/dev-console/src/components/helm/form/HelmChartVersionDropdown.tsx

@@ -165,7 +165,11 @@ const HelmChartVersionDropdown: React.FunctionComponent<HelmChartVersionDropdown
         items={helmChartVersions}
         helpText={helpText}
         disabled={_.isEmpty(helmChartVersions) || _.keys(helmChartVersions).length === 1}
-        title={helmChartVersions[chartVersion] || concatVersions(chartVersion, appVersion)}
+        title={
+          _.isEmpty(helmChartVersions) && !chartVersion
+            ? 'No versions available'
+            : helmChartVersions[chartVersion] || concatVersions(chartVersion, appVersion)
+        }
         onChange={handleChartVersionChange}
         required
         fullWidth

frontend/packages/dev-console/src/components/helm/form/HelmInstallUpgradeForm.tsx

@@ -1,7 +1,7 @@
 import * as React from 'react';
 import * as _ from 'lodash';
 import { FormikProps, FormikValues } from 'formik';
-import { TextInputTypes, Grid, GridItem, Button } from '@patternfly/react-core';
+import { TextInputTypes, Grid, GridItem, Button, Alert } from '@patternfly/react-core';
 import {
   InputField,
   FormFooter,
@@ -22,6 +22,7 @@ export interface HelmInstallUpgradeFormProps {
   helmActionConfig: HelmActionConfigType;
   chartMetaDescription: React.ReactNode;
   onVersionChange: (chart: HelmChart) => void;
+  chartError: Error;
 }
 
 const HelmInstallUpgradeForm: React.FC<FormikProps<FormikValues> & HelmInstallUpgradeFormProps> = ({
@@ -36,12 +37,16 @@ const HelmInstallUpgradeForm: React.FC<FormikProps<FormikValues> & HelmInstallUp
   dirty,
   chartMetaDescription,
   onVersionChange,
+  chartError,
 }) => {
   const { chartName, chartVersion, chartReadme, formData, formSchema, editorType } = values;
   const { type: helmAction, title, subTitle } = helmActionConfig;
 
   const isSubmitDisabled =
-    (helmAction === HelmActionType.Upgrade && !dirty) || status?.isSubmitting || !_.isEmpty(errors);
+    (helmAction === HelmActionType.Upgrade && !dirty) ||
+    status?.isSubmitting ||
+    !_.isEmpty(errors) ||
+    !!chartError;
 
   const uiSchema = React.useMemo(() => getJSONSchemaOrder(formSchema, {}), [formSchema]);
 
@@ -88,6 +93,11 @@ const HelmInstallUpgradeForm: React.FC<FormikProps<FormikValues> & HelmInstallUp
   return (
     <FlexForm onSubmit={handleSubmit}>
       <FormHeader title={title} helpText={formHelpText} marginBottom="lg" />
+      {chartError && (
+        <Alert variant="danger" isInline title="Helm Chart cannot be installed">
+          The Helm chart is currently unavailable. {`${chartError}.`}
+        </Alert>
+      )}
       <FormSection fullWidth>
         <Grid hasGutter>
           <GridItem xl={7} lg={8} md={12}>
@@ -97,7 +107,7 @@ const HelmInstallUpgradeForm: React.FC<FormikProps<FormikValues> & HelmInstallUp
               label="Release Name"
               helpText="A unique name for the Helm Chart release."
               required
-              isDisabled={helmAction === HelmActionType.Upgrade}
+              isDisabled={!!chartError || helmAction === HelmActionType.Upgrade}
             />
           </GridItem>
           <GridItem xl={5} lg={4} md={12}>
@@ -110,11 +120,13 @@ const HelmInstallUpgradeForm: React.FC<FormikProps<FormikValues> & HelmInstallUp
           </GridItem>
         </Grid>
       </FormSection>
-      <SyncedEditorField
-        name="editorType"
-        formContext={{ name: 'formData', editor: formEditor, isDisabled: !formSchema }}
-        yamlContext={{ name: 'yamlData', editor: yamlEditor }}
-      />
+      {!chartError && (
+        <SyncedEditorField
+          name="editorType"
+          formContext={{ name: 'formData', editor: formEditor, isDisabled: !formSchema }}
+          yamlContext={{ name: 'yamlData', editor: yamlEditor }}
+        />
+      )}
       <FormFooter
         handleReset={handleReset}
         errorMessage={status && status.submitError}

frontend/packages/dev-console/src/components/helm/form/__tests__/HelmInstallUpgradeForm.spec.tsx

@@ -1,12 +1,13 @@
 import * as React from 'react';
 import * as _ from 'lodash';
 import { shallow } from 'enzyme';
-import { InputField, SyncedEditorField, FormHeader } from '@console/shared';
+import { InputField, SyncedEditorField, FormHeader, FormFooter } from '@console/shared';
 import { EditorType } from '@console/shared/src/components/synced-editor/editor-toggle';
 import HelmInstallUpgradeForm from '../HelmInstallUpgradeForm';
 import { HelmActionType } from '../../helm-types';
 import { coFetchJSON } from '@console/internal/co-fetch';
 import { formikFormProps } from '@console/shared/src/test-utils/formik-props-utils';
+import { Alert } from '@patternfly/react-core';
 
 const formValues = {
   releaseName: 'helm-release',
@@ -46,6 +47,7 @@ const componentProps = {
   helmActionConfig: helmConfig,
   onVersionChange: jest.fn(),
   chartMetaDescription: <p>Some chart meta</p>,
+  chartError: null,
 };
 
 const props: React.ComponentProps<typeof HelmInstallUpgradeForm> = {
@@ -123,4 +125,26 @@ describe('HelmInstallUpgradeForm', () => {
     expect(wrapper.find(InputField).props().label).toBe('Release Name');
     expect(wrapper.find(InputField).props().isDisabled).toBe(true);
   });
+
+  it('should show error alert when chart is not reachable', () => {
+    const newProps = _.cloneDeep(props);
+    newProps.chartError = new Error('Chart not reachable');
+    const wrapper = shallow(<HelmInstallUpgradeForm {...newProps} />);
+    expect(wrapper.find(Alert).exists()).toBe(true);
+  });
+
+  it('should disable Release Name field and Install button if chart is not reachable', () => {
+    const newProps = _.cloneDeep(props);
+    newProps.chartError = new Error('Chart not reachable');
+    const wrapper = shallow(<HelmInstallUpgradeForm {...newProps} />);
+    expect(wrapper.find(InputField).props().isDisabled).toBe(true);
+    expect(wrapper.find(FormFooter).props().disableSubmit).toBe(true);
+  });
+
+  it('should not show form editor if chart is not reachable', () => {
+    const newProps = _.cloneDeep(props);
+    newProps.chartError = new Error('Chart not reachable');
+    const wrapper = shallow(<HelmInstallUpgradeForm {...newProps} />);
+    expect(wrapper.find(SyncedEditorField).exists()).toBe(false);
+  });
 });