feat(jvmid): enhance UI hints when JVM ID cannot be generated

src/app/SecurityPanel/CertificateUploadModal.tsx

@@ -121,7 +121,7 @@ export const CertificateUploadModal: React.FC<CertificateUploadModalProps> = ({
       showClose={true}
       onClose={handleClose}
       title="Upload SSL certificate"
-      description="Select a certificate file to upload. Certificates must be DER-encoded (can be binary or base64) and can have .der or .cer extensions."
+      description="Select a certificate file to upload. Certificates must be DER-encoded (can be binary or base64) and should have .der or .cer extensions."
     >
       <Form>
         <FormGroup label="Certificate File" isRequired fieldId="file">

src/app/SecurityPanel/Credentials/StoreCredentials.tsx

@@ -15,6 +15,7 @@
  */
 import { DeleteWarningModal } from '@app/Modal/DeleteWarningModal';
 import { DeleteOrDisableWarningType } from '@app/Modal/types';
+import { JmxAuthDescription } from '@app/Shared/Components/JmxAuthDescription';
 import { LoadingView } from '@app/Shared/Components/LoadingView';
 import { StoredCredential, NotificationCategory } from '@app/Shared/Services/api.types';
 import { ServiceContext } from '@app/Shared/Services/Services';
@@ -31,13 +32,18 @@
   DropdownToggleCheckbox,
   EmptyState,
   EmptyStateIcon,
+  Icon,
+  Popover,
   Text,
+  TextContent,
+  TextVariants,
   Title,
   Toolbar,
   ToolbarContent,
   ToolbarItem,
+  Tooltip,
 } from '@patternfly/react-core';
-import { SearchIcon } from '@patternfly/react-icons';
+import { OutlinedQuestionCircleIcon, SearchIcon } from '@patternfly/react-icons';
 import { ExpandableRowContent, TableComposable, Tbody, Td, Th, Thead, Tr } from '@patternfly/react-table';
 import * as React from 'react';
 import { Link } from 'react-router-dom';
@@ -516,15 +522,27 @@
 };
 
 export const StoreCredentialsCard: SecurityCard = {
-  title: 'Store Credentials',
-  description: (
+  key: 'credentials',
+  title: (
     <Text>
-      Credentials that Cryostat uses to connect to Cryostat agents or target JVMs over JMX are stored here. These are
-      stored in encrypted storage managed by the Cryostat backend. These credentials may be used for manually managing
-      recordings and event templates on target JVMs, as well as for Automated Rules which run in the background and open
-      unattended target connections. Any locally-stored client credentials held by your browser session are not
-      displayed here. See <Link to="/settings">Settings</Link> to configure locally-stored credentials.
+      Store Credentials
+      <Popover maxWidth="40rem" headerContent="JMX Authentication" bodyContent={<JmxAuthDescription />}>
+        <Button variant="plain">
+          <OutlinedQuestionCircleIcon />
+        </Button>
+      </Popover>
     </Text>
   ),
+  description: (
+    <TextContent>
+      <Text component={TextVariants.small}>
+        Credentials that Cryostat uses to connect to Cryostat agents or target JVMs over JMX are stored here. These are
+        stored in encrypted storage managed by the Cryostat backend. These credentials may be used for manually managing
+        recordings and event templates on target JVMs, as well as for Automated Rules which run in the background and
+        open unattended target connections. Any locally-stored client credentials held by your browser session are not
+        displayed here. See <Link to="/settings">Settings</Link> to configure locally-stored credentials.
+      </Text>
+    </TextContent>
+  ),
   content: StoreCredentials,
 };

src/app/SecurityPanel/ImportCertificate.tsx

@@ -14,7 +14,9 @@
  * limitations under the License.
  */
 
-import { Button } from '@patternfly/react-core';
+import { JmxSslDescription } from '@app/Shared/Components/JmxSslDescription';
+import { Button, Icon, Popover, Text, TextContent, TextVariants, Tooltip } from '@patternfly/react-core';
+import { OutlinedQuestionCircleIcon } from '@patternfly/react-icons';
 import * as React from 'react';
 import { CertificateUploadModal } from './CertificateUploadModal';
 import { SecurityCard } from './types';
@@ -37,7 +39,22 @@
 };
 
 export const ImportCertificate: SecurityCard = {
-  title: 'Import SSL Certificates',
-  description: 'The Cryostat server must be restarted in order to reload the certificate store.',
+  key: 'ssl',
+  title: (
+    <Text>
+      Import SSL Certificates
+      <Popover maxWidth="40rem" headerContent="JMX over SSL" bodyContent={<JmxSslDescription />}>
+        <Button variant="plain">
+          <OutlinedQuestionCircleIcon />
+        </Button>
+      </Popover>
+    </Text>
+  ),
+  description: (
+    <TextContent>
+      <Text component={TextVariants.small}>Add SSL certificates to the Cryostat server truststore.</Text>
+      <Text component={TextVariants.small}>You must restart the Cryostat server to reload the certificate store.</Text>
+    </TextContent>
+  ),
   content: CertificateImport,
 };

src/app/SecurityPanel/SecurityPanel.tsx

@@ -23,6 +23,7 @@ export interface SecurityPanelProps {}
 
 export const SecurityPanel: React.FC<SecurityPanelProps> = (_) => {
   const securityCards = [ImportCertificate, StoreCredentialsCard].map((c) => ({
+    key: c.key,
     title: c.title,
     description: c.description,
     element: React.createElement(c.content, null),
@@ -31,10 +32,10 @@ export const SecurityPanel: React.FC<SecurityPanelProps> = (_) => {
   return (
     <BreadcrumbPage pageTitle="Security">
       {securityCards.map((s) => (
-        <Card key={s.title}>
+        <Card key={s.key}>
           <CardTitle>
             <Text component={TextVariants.h1}>{s.title}</Text>
-            <Text component={TextVariants.small}>{s.description}</Text>
+            {s.description}
           </CardTitle>
           <CardBody>{s.element}</CardBody>
         </Card>

src/app/SecurityPanel/types.ts

@@ -15,7 +15,8 @@
  */
 
 export interface SecurityCard {
-  title: string;
-  description: JSX.Element | string;
+  key: string;
+  title: JSX.Element;
+  description: JSX.Element;
   content: React.FC;
 }

src/app/Shared/Components/FileUploads.tsx

@@ -276,7 +276,7 @@ export const MultiFileUpload: React.FC<MultiFileUploadProps> = ({
       >
         <MultipleFileUploadMain
           titleIcon={titleIcon || <UploadIcon />}
-          titleText={titleText || 'Drag and drop files here'}
+          titleText={titleText || 'Drag a file here'}
           titleTextSeparator={titleTextSeparator || 'or'}
           infoText={infoText || `Accepted file types: ${displayAccepts.join(', ')}`}
         />

src/app/Shared/Components/JmxAuthDescription.tsx

@@ -0,0 +1,44 @@
+/*
+ * Copyright The Cryostat Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Text, TextContent, TextList, TextListItem, TextVariants } from '@patternfly/react-core';
+import * as React from 'react';
+import { DescriptionProps } from './types';
+
+export const JmxAuthDescription: React.FC<React.PropsWithChildren<DescriptionProps>> = ({ children }) => {
+  return (
+    <TextContent>
+      {children}
+      <Text component={TextVariants.p}>
+        JVM applications can be configured to require clients, such as Cryostat, to pass a challenge based
+        authentication before establishing a connection.
+      </Text>
+      <Text component={TextVariants.p}>
+        Check the deployment configuration of your JVM application for system properties such as:
+      </Text>
+      <TextList>
+        <TextListItem>
+          <Text component={TextVariants.pre}>com.sun.management.jmxremote.authenticate</Text>
+        </TextListItem>
+        <TextListItem>
+          <Text component={TextVariants.pre}>com.sun.management.jmxremote.password.file</Text>
+        </TextListItem>
+        <TextListItem>
+          <Text component={TextVariants.pre}>com.sun.management.jmxremote.login.config</Text>
+        </TextListItem>
+      </TextList>
+    </TextContent>
+  );
+};

src/app/Shared/Components/JmxSslDescription.tsx

@@ -0,0 +1,54 @@
+/*
+ * Copyright The Cryostat Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { Text, TextContent, TextList, TextListItem, TextVariants } from '@patternfly/react-core';
+import * as React from 'react';
+import { DescriptionProps } from './types';
+
+export const JmxSslDescription: React.FC<React.PropsWithChildren<DescriptionProps>> = ({ children }) => {
+  return (
+    <TextContent>
+      {children}
+      <Text component={TextVariants.p}>
+        JVM applications can be configured to present an SSL certificate for incoming JMX connections. Clients, such as
+        Cryostat, should be configured to trust these certificates so that the origin and authenticity of the connection
+        data can be verified.
+      </Text>
+      <Text component={TextVariants.p}>
+        Check the deployment configuration of your JVM application for system properties such as:
+      </Text>
+      <TextList>
+        <TextListItem>
+          <Text component={TextVariants.pre}>javax.net.ssl.keyStore</Text>
+        </TextListItem>
+        <TextListItem>
+          <Text component={TextVariants.pre}>javax.net.ssl.keyStorePassword</Text>
+        </TextListItem>
+        <TextListItem>
+          <Text component={TextVariants.pre}>com.sun.management.jmxremote.ssl.need.client.auth</Text>
+        </TextListItem>
+        <TextListItem>
+          <Text component={TextVariants.pre}>javax.net.ssl.trustStore</Text>
+        </TextListItem>
+        <TextListItem>
+          <Text component={TextVariants.pre}>javax.net.ssl.trustStorePassword</Text>
+        </TextListItem>
+        <TextListItem>
+          <Text component={TextVariants.pre}>com.sun.management.jmxremote.registry.ssl</Text>
+        </TextListItem>
+      </TextList>
+    </TextContent>
+  );
+};

src/app/Shared/Components/types.ts

@@ -20,3 +20,7 @@ export interface LoadingProps {
   spinnerAriaLabel?: string; // Accessible label for the spinner to describe what is loading
   isLoading: boolean;
 }
+
+export type DescriptionProps = {
+  children?: React.ReactNode;
+};

src/app/Topology/Entity/EntityDetails.tsx

@@ -191,7 +191,7 @@ export const TargetDetails: React.FC<{
           <>
             <span style={{ marginRight: '0.5em' }}>JVM ID</span>
             {!serviceRef.jvmId && (
-              <Tooltip content={'Failed to compute JVM ID'}>
+              <Tooltip content={'Failed to generate the JVM identifier'}>
                 <ExclamationTriangleIcon color="orange" />
               </Tooltip>
             )}
@@ -201,7 +201,7 @@ export const TargetDetails: React.FC<{
           <>
             <span style={{ marginRight: '0.5em' }}>JVM ID</span>
             {!serviceRef.jvmId && (
-              <Tooltip content={'Failed to compute JVM ID'}>
+              <Tooltip content={'Failed to generate the JVM identifier'}>
                 <ExclamationTriangleIcon color="orange" />
               </Tooltip>
             )}
@@ -666,15 +666,17 @@ export const EntityDetailHeader: React.FC<EntityDetailHeaderProps> = ({
           actionClose={<AlertActionCloseButton onClose={() => setShowBanner(false)} />}
         >
           <Stack hasGutter>
-            <StackItem key={'alert-description'}>{extra?.description}</StackItem>
             {extra?.callForAction && !alertOptions.hideActions ? (
-              <StackItem key={'alert-call-for-action'}>
-                <Flex>
-                  {extra.callForAction.map((action, index) => (
-                    <FlexItem key={index}>{action}</FlexItem>
-                  ))}
-                </Flex>
-              </StackItem>
+              <>
+                <StackItem key={'alert-description'}>{extra?.description}</StackItem>
+                <StackItem key={'alert-call-for-action'}>
+                  <Flex>
+                    {extra.callForAction.map((action, index) => (
+                      <FlexItem key={index}>{action}</FlexItem>
+                    ))}
+                  </Flex>
+                </StackItem>
+              </>
             ) : null}
           </Stack>
         </Alert>

src/app/Topology/Shared/utils.tsx

@@ -14,14 +14,23 @@
  * limitations under the License.
  */
 
+import { JmxAuthDescription } from '@app/Shared/Components/JmxAuthDescription';
+import { JmxSslDescription } from '@app/Shared/Components/JmxSslDescription';
 import { TopologyFilters } from '@app/Shared/Redux/Filters/TopologyFilterSlice';
 import { NodeType, EnvironmentNode, TargetNode } from '@app/Shared/Services/api.types';
 import { DEFAULT_EMPTY_UNIVERSE, isTargetNode } from '@app/Shared/Services/api.utils';
-import { Button, Text, TextVariants } from '@patternfly/react-core';
-import { GraphElement, NodeStatus } from '@patternfly/react-topology';
+import {
+  Button,
+  Text,
+  TextVariants,
+  DescriptionListTermHelpText,
+  DescriptionListTermHelpTextButton,
+  Popover,
+} from '@patternfly/react-core';
+import { NodeStatus } from '@patternfly/react-topology';
 import * as React from 'react';
 import { WarningResolverAsCredModal, WarningResolverAsLink } from '../Actions/WarningResolver';
-import { ListElement, StatusExtra } from './types';
+import { GraphElement, ListElement, StatusExtra } from './types';
 
 export const TOPOLOGY_GRAPH_ID = 'cryostat-target-topology-graph';
 
@@ -41,26 +50,41 @@ export const getStatusTargetNode = (node: TargetNode | EnvironmentNode): [NodeSt
       : [
           NodeStatus.warning,
           {
-            title: 'Failed to compute JVM ID',
+            title: 'Failed to generate the JVM identifier',
             description: (
               <>
-                <Text component={TextVariants.p}>
-                  If target has JMX Authentication enabled, add the credential to Cryostat keyring.
-                </Text>
-                <Text component={TextVariants.p}>
-                  If the target has SSL enabled over JMX, add its certificate to Cryostat truststore.
-                </Text>
+                <Text component={TextVariants.p}>Check the target authentication settings:</Text>
               </>
             ),
             callForAction: [
-              <WarningResolverAsCredModal key={`${node.target.alias}-resolver-as-credential-modal`}>
-                <Button variant="link" isSmall style={{ padding: 0 }}>
-                  Add credentials
-                </Button>
-              </WarningResolverAsCredModal>,
-              <WarningResolverAsLink key={`${node.target.alias}-resolver-as-link-to-security`} to="/security">
-                Add certificates
-              </WarningResolverAsLink>,
+              <Text key="jmx-auth" component={TextVariants.p}>
+                If{' '}
+                <DescriptionListTermHelpText>
+                  <Popover maxWidth="40rem" headerContent="JMX Authentication" bodyContent={<JmxAuthDescription />}>
+                    <DescriptionListTermHelpTextButton>JMX Authentication</DescriptionListTermHelpTextButton>
+                  </Popover>
+                </DescriptionListTermHelpText>{' '}
+                is enabled,{' '}
+                <WarningResolverAsCredModal key={`${node.target.alias}-resolver-as-credential-modal`}>
+                  <Button variant="link" isSmall style={{ padding: 0 }}>
+                    add credentials
+                  </Button>
+                  .
+                </WarningResolverAsCredModal>
+              </Text>,
+              <Text key="jmx-ssl" component={TextVariants.p}>
+                If{' '}
+                <DescriptionListTermHelpText>
+                  <Popover maxWidth="40rem" headerContent="JMX over SSL" bodyContent={<JmxSslDescription />}>
+                    <DescriptionListTermHelpTextButton>SSL is enabled</DescriptionListTermHelpTextButton>
+                  </Popover>
+                </DescriptionListTermHelpText>{' '}
+                for JMX,{' '}
+                <WarningResolverAsLink key={`${node.target.alias}-resolver-as-link-to-security`} to="/security">
+                  add the SSL certificate
+                </WarningResolverAsLink>
+                .
+              </Text>,
             ],
           },
         ];

src/test/Agent/AgentProbeTemplates.test.tsx

@@ -154,7 +154,7 @@ describe('<AgentProbeTemplates />', () => {
     expect(modalTitle).toBeInTheDocument();
     expect(modalTitle).toBeVisible();
 
-    const dropZoneText = within(modal).getByText('Drag and drop files here');
+    const dropZoneText = within(modal).getByText('Drag a file here');
     expect(dropZoneText).toBeInTheDocument();
     expect(dropZoneText).toBeVisible();