[Connectors] Detect deploying agentless infra state (#205395)

## Summary

Let’s start with simple logic to detect the state where we’re waiting
for the agentless infrastructure to be provisioned.

In a recent change (elastic/connectors#3014),
connectors now send a heartbeat immediately upon the framework’s
startup. Therefore, we can use the “last seen” timestamp (populated on
heartbeat) to detect when the infrastructure has started.

If we find this logic insufficient to cover all cases, we can adapt the
ConnectorViewLogic to also call Fleet APIs for more accurate
missing/ready agentless host detection . Let’s keep it simple for now
and iterate as needed.

### Changes
- Add logic in ConnectorViewLogic to compute the
isWaitingOnAgentlessDeployment state using the last_seen property.
- In the connector creation flow, add a “Provisioning Infrastructure”
banner and disable the “Next Step” button if we’re in this state.
- In the connector overview, add a warning banner if the infrastructure
is not provisioned.
- Add a few additional fixes in the “Create Connector” form.

### Screenshots

- Create connector form, banner + next button disabled
<img width="1265" alt="Screenshot 2025-01-02 at 15 14 56"
src="https://github.com/user-attachments/assets/32b224ae-8008-429e-a940-39bf038a03dc"
/>

- Connector overview banner
<img width="1280" alt="Screenshot 2025-01-02 at 15 15 32"
src="https://github.com/user-attachments/assets/d29bccf6-b6ed-48ab-9b58-076c3962ad36"
/>

- Form is non-editable after connector doc is created, don't show API
key related info for elastic-managed connector
<img width="1296" alt="Screenshot 2025-01-02 at 15 25 56"
src="https://github.com/user-attachments/assets/766a1fd7-cef3-4437-8140-4559f8cf5de1"
/>


### Checklist

Check the PR satisfies following conditions. 

Reviewers should verify this PR satisfies this list as well.

- [x] Any text added follows [EUI's writing
guidelines](https://elastic.github.io/eui/#/guidelines/writing), uses
sentence case text and includes [i18n
support](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)
- [ ]
[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)
was added for features that require explanation or tutorials
- [ ] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios
- [ ] If a plugin configuration key changed, check if it needs to be
allowlisted in the cloud and added to the [docker
list](https://github.com/elastic/kibana/blob/main/src/dev/build/tasks/os_packages/docker_generator/resources/base/bin/kibana-docker)
- [ ] This was checked for breaking HTTP API changes, and any breaking
changes have been approved by the breaking-change committee. The
`release_note:breaking` label should be applied in these situations.
- [ ] [Flaky Test
Runner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1) was
used on any tests changed
- [x] The PR description includes the appropriate Release Notes section,
and the correct `release_note:*` label is applied per the
[guidelines](https://www.elastic.co/guide/en/kibana/master/contributing.html#kibana-release-notes-process)

---------

Co-authored-by: Elastic Machine <[email protected]>

x-pack/solutions/search/plugins/enterprise_search/public/applications/enterprise_search_content/components/connector_detail/components/generated_config_fields.tsx

@@ -97,6 +97,9 @@ export const GeneratedConfigFields: React.FC<GeneratedConfigFieldsProps> = ({
     setIsModalVisible(false);
   };
 
+  const showApiKeyInfoForSelfManagedConnector = !connector.is_native;
+  const showApiKeyBanner = showApiKeyInfoForSelfManagedConnector && apiKey?.encoded;
+
   return (
     <>
       {isModalVisible && <ConfirmModal onCancel={onCancel} onConfirm={onConfirm} />}
@@ -193,96 +196,99 @@ export const GeneratedConfigFields: React.FC<GeneratedConfigFieldsProps> = ({
             )}
           </EuiFlexItem>
           <EuiFlexItem />
-          <EuiFlexItem>
-            <EuiFlexGroup responsive={false} gutterSize="xs">
+          {showApiKeyInfoForSelfManagedConnector && (
+            <>
+              <EuiFlexItem>
+                <EuiFlexGroup responsive={false} gutterSize="xs">
+                  <EuiFlexItem grow={false}>
+                    <EuiIcon type="check" />
+                  </EuiFlexItem>
+                  <EuiFlexItem>
+                    {i18n.translate(
+                      'xpack.enterpriseSearch.connectorDeployment.apiKeyCreatedFlexItemLabel',
+                      { defaultMessage: 'API key created' }
+                    )}
+                    {apiKey?.encoded && ` *`}
+                  </EuiFlexItem>
+                </EuiFlexGroup>
+              </EuiFlexItem>
               <EuiFlexItem grow={false}>
-                <EuiIcon type="check" />
+                <EuiLink
+                  data-test-subj="enterpriseSearchConnectorDeploymentLink"
+                  href={generateEncodedPath(MANAGE_API_KEYS_URL, {})}
+                  external
+                  target="_blank"
+                >
+                  {apiKey?.name}
+                </EuiLink>
               </EuiFlexItem>
               <EuiFlexItem>
-                {i18n.translate(
-                  'xpack.enterpriseSearch.connectorDeployment.apiKeyCreatedFlexItemLabel',
-                  { defaultMessage: 'API key created' }
-                )}
-                {apiKey?.encoded && ` *`}
-              </EuiFlexItem>
-            </EuiFlexGroup>
-          </EuiFlexItem>
-          <EuiFlexItem grow={false}>
-            <EuiLink
-              data-test-subj="enterpriseSearchConnectorDeploymentLink"
-              href={generateEncodedPath(MANAGE_API_KEYS_URL, {})}
-              external
-              target="_blank"
-            >
-              {apiKey?.name}
-            </EuiLink>
-          </EuiFlexItem>
-          <EuiFlexItem>
-            <EuiFlexGroup
-              responsive={false}
-              gutterSize="xs"
-              justifyContent="flexEnd"
-              alignItems="center"
-            >
-              {apiKey?.encoded ? (
-                <EuiFlexItem>
-                  <EuiCopy textToCopy={apiKey?.encoded}>
-                    {(copy) => (
-                      <EuiFlexGroup responsive={false} alignItems="center" gutterSize="xs">
-                        <EuiFlexItem>
-                          <EuiCode>{apiKey?.encoded}</EuiCode>
-                        </EuiFlexItem>
-                        {generateApiKey && (
-                          <EuiFlexItem grow={false}>
-                            <EuiButtonIcon
-                              data-test-subj="enterpriseSearchGeneratedConfigFieldsButton"
-                              size="xs"
-                              iconType="refresh"
-                              isLoading={isGenerateLoading}
-                              onClick={refreshButtonClick}
-                              disabled={!connector.index_name}
-                              aria-label={i18n.translate(
-                                'xpack.enterpriseSearch.connectorDeployment.refreshAPIKey',
-                                { defaultMessage: 'Refresh an Elasticsearch API key' }
-                              )}
-                            />
-                          </EuiFlexItem>
-                        )}
-                        <EuiFlexItem grow={false}>
-                          <EuiButtonIcon
-                            size="xs"
-                            data-test-subj="enterpriseSearchConnectorDeploymentButton"
-                            iconType="copyClipboard"
-                            onClick={copy}
-                            aria-label={i18n.translate(
-                              'xpack.enterpriseSearch.connectorDeployment.copyIndexName',
-                              { defaultMessage: 'Copy index name' }
+                <EuiFlexGroup
+                  responsive={false}
+                  gutterSize="xs"
+                  justifyContent="flexEnd"
+                  alignItems="center"
+                >
+                  {apiKey?.encoded ? (
+                    <EuiFlexItem>
+                      <EuiCopy textToCopy={apiKey?.encoded}>
+                        {(copy) => (
+                          <EuiFlexGroup responsive={false} alignItems="center" gutterSize="xs">
+                            <EuiFlexItem>
+                              <EuiCode>{apiKey?.encoded}</EuiCode>
+                            </EuiFlexItem>
+                            {generateApiKey && (
+                              <EuiFlexItem grow={false}>
+                                <EuiButtonIcon
+                                  data-test-subj="enterpriseSearchGeneratedConfigFieldsButton"
+                                  size="xs"
+                                  iconType="refresh"
+                                  isLoading={isGenerateLoading}
+                                  onClick={refreshButtonClick}
+                                  disabled={!connector.index_name}
+                                  aria-label={i18n.translate(
+                                    'xpack.enterpriseSearch.connectorDeployment.refreshAPIKey',
+                                    { defaultMessage: 'Refresh an Elasticsearch API key' }
+                                  )}
+                                />
+                              </EuiFlexItem>
                             )}
-                          />
-                        </EuiFlexItem>
-                      </EuiFlexGroup>
-                    )}
-                  </EuiCopy>
-                </EuiFlexItem>
-              ) : (
-                generateApiKey && (
-                  <EuiFlexItem grow={false}>
-                    <EuiButtonIcon
-                      data-test-subj="enterpriseSearchGeneratedConfigFieldsButton"
-                      size="xs"
-                      iconType="refresh"
-                      isLoading={isGenerateLoading}
-                      onClick={refreshButtonClick}
-                      disabled={!connector.index_name}
-                    />
-                  </EuiFlexItem>
-                )
-              )}
-            </EuiFlexGroup>
-          </EuiFlexItem>
+                            <EuiFlexItem grow={false}>
+                              <EuiButtonIcon
+                                size="xs"
+                                data-test-subj="enterpriseSearchConnectorDeploymentButton"
+                                iconType="copyClipboard"
+                                onClick={copy}
+                                aria-label={i18n.translate(
+                                  'xpack.enterpriseSearch.connectorDeployment.copyIndexName',
+                                  { defaultMessage: 'Copy index name' }
+                                )}
+                              />
+                            </EuiFlexItem>
+                          </EuiFlexGroup>
+                        )}
+                      </EuiCopy>
+                    </EuiFlexItem>
+                  ) : (
+                    generateApiKey && (
+                      <EuiFlexItem grow={false}>
+                        <EuiButtonIcon
+                          data-test-subj="enterpriseSearchGeneratedConfigFieldsButton"
+                          size="xs"
+                          iconType="refresh"
+                          isLoading={isGenerateLoading}
+                          onClick={refreshButtonClick}
+                          disabled={!connector.index_name}
+                        />
+                      </EuiFlexItem>
+                    )
+                  )}
+                </EuiFlexGroup>
+              </EuiFlexItem>
+            </>
+          )}
         </EuiFlexGrid>
-
-        {apiKey?.encoded && (
+        {showApiKeyBanner && (
           <>
             <EuiSpacer size="m" />
             <EuiCallOut

x-pack/solutions/search/plugins/enterprise_search/public/applications/enterprise_search_content/components/connector_detail/connector_view_logic.ts

@@ -34,7 +34,11 @@ import {
   hasDocumentLevelSecurityFeature,
   hasIncrementalSyncFeature,
 } from '../../utils/connector_helpers';
-import { getConnectorLastSeenError, isLastSeenOld } from '../../utils/connector_status_helpers';
+import {
+  getConnectorLastSeenError,
+  hasConnectorBeenSeenRecently,
+  isLastSeenOld,
+} from '../../utils/connector_status_helpers';
 
 import {
   ConnectorNameAndDescriptionActions,
@@ -82,6 +86,7 @@ export interface ConnectorViewValues {
   isCanceling: boolean;
   isHiddenIndex: boolean;
   isLoading: boolean;
+  isWaitingOnAgentlessDeployment: boolean;
   lastUpdated: string | null;
   pipelineData: IngestPipelineParams | undefined;
   recheckIndexLoading: boolean;
@@ -206,6 +211,7 @@ export const ConnectorViewLogic = kea<MakeLogicType<ConnectorViewValues, Connect
       () => [selectors.hasAdvancedFilteringFeature, selectors.hasBasicFilteringFeature],
       (advancedFeature: boolean, basicFeature: boolean) => advancedFeature || basicFeature,
     ],
+
     hasIncrementalSyncFeature: [
       () => [selectors.connector],
       (connector?: Connector) => hasIncrementalSyncFeature(connector),
@@ -231,6 +237,14 @@ export const ConnectorViewLogic = kea<MakeLogicType<ConnectorViewValues, Connect
         [Status.IDLE && Status.LOADING].includes(fetchConnectorApiStatus) ||
         (index && [Status.IDLE && Status.LOADING].includes(fetchIndexApiStatus)),
     ],
+    isWaitingOnAgentlessDeployment: [
+      () => [selectors.connector],
+      (connector: Connector) => {
+        if (!connector || !connector.is_native) return false;
+
+        return !hasConnectorBeenSeenRecently(connector);
+      },
+    ],
     pipelineData: [
       () => [selectors.connector],
       (connector: Connector | undefined) => connector?.pipeline ?? undefined,

x-pack/solutions/search/plugins/enterprise_search/public/applications/enterprise_search_content/components/connector_detail/overview.tsx

@@ -9,7 +9,17 @@ import React from 'react';
 
 import { useActions, useValues } from 'kea';
 
-import { EuiButton, EuiCallOut, EuiCode, EuiLink, EuiSpacer, EuiText } from '@elastic/eui';
+import {
+  EuiButton,
+  EuiCallOut,
+  EuiCode,
+  EuiFlexGroup,
+  EuiFlexItem,
+  EuiLink,
+  EuiLoadingSpinner,
+  EuiSpacer,
+  EuiText,
+} from '@elastic/eui';
 
 import { i18n } from '@kbn/i18n';
 
@@ -38,7 +48,7 @@ import { ConnectorViewLogic } from './connector_view_logic';
 
 export const ConnectorDetailOverview: React.FC = () => {
   const { indexData } = useValues(IndexViewLogic);
-  const { connector, error } = useValues(ConnectorViewLogic);
+  const { connector, error, isWaitingOnAgentlessDeployment } = useValues(ConnectorViewLogic);
   const { isCloud } = useValues(KibanaLogic);
   const { showModal } = useActions(ConvertConnectorLogic);
   const { isModalVisible } = useValues(ConvertConnectorLogic);
@@ -73,6 +83,39 @@ export const ConnectorDetailOverview: React.FC = () => {
             </>
           )
       }
+      {isWaitingOnAgentlessDeployment && (
+        <>
+          <EuiCallOut
+            color="warning"
+            title={
+              <EuiFlexGroup alignItems="center">
+                <EuiFlexItem grow={false}>
+                  <EuiLoadingSpinner />
+                </EuiFlexItem>
+                <EuiFlexItem>
+                  {i18n.translate(
+                    'xpack.enterpriseSearch.content.connectors.overview.agentlessDeploymentNotReadyCallOut.title',
+                    {
+                      defaultMessage: 'Provisioning infrastructure',
+                    }
+                  )}
+                </EuiFlexItem>
+              </EuiFlexGroup>
+            }
+          >
+            <EuiSpacer size="s" />
+            <EuiText size="s">
+              {i18n.translate(
+                'xpack.enterpriseSearch.content.connectors.overview.agentlessDeploymentNotReadyCallOut.description',
+                {
+                  defaultMessage: 'Setting up the agentless infrastructure to run the connector.',
+                }
+              )}
+            </EuiText>
+          </EuiCallOut>
+          <EuiSpacer />
+        </>
+      )}
       {error && (
         <>
           <EuiCallOut

x-pack/solutions/search/plugins/enterprise_search/public/applications/enterprise_search_content/components/connectors/create_connector/components/choose_connector.tsx

@@ -37,12 +37,16 @@ import { SelfManagePreference } from '../create_connector';
 
 interface ChooseConnectorSelectableProps {
   selfManaged: SelfManagePreference;
+  disabled?: boolean;
 }
 interface OptionData {
   secondaryContent?: string;
 }
 
-export const ChooseConnector: React.FC<ChooseConnectorSelectableProps> = ({ selfManaged }) => {
+export const ChooseConnector: React.FC<ChooseConnectorSelectableProps> = ({
+  selfManaged,
+  disabled,
+}) => {
   const { euiTheme } = useEuiTheme();
   const [selectedOption, setSelectedOption] = useState<Array<EuiComboBoxOptionOption<OptionData>>>(
     []
@@ -142,6 +146,7 @@ export const ChooseConnector: React.FC<ChooseConnectorSelectableProps> = ({ self
 
   return (
     <EuiComboBox
+      isDisabled={disabled}
       aria-label={i18n.translate(
         'xpack.enterpriseSearch.createConnector.chooseConnectorSelectable.euiComboBox.accessibleScreenReaderLabelLabel',
         { defaultMessage: 'Select a data source for your connector to use.' }