[8.13][Fleet] Backport output health fix (using output id instead of …

…"default" for non-elasticsearch outputs) (#179406)

## Summary

Backport #178857 and
#179218 to 8.13
Closes #177927

x-pack/plugins/fleet/server/services/agent_policies/full_agent_policy.test.ts

@@ -93,6 +93,15 @@ jest.mock('../output', () => {
       type: 'elasticsearch',
       hosts: ['http://127.0.0.1:9201'],
     },
+    'test-remote-id': {
+      id: 'test-remote-id',
+      is_default: true,
+      is_default_monitoring: true,
+      name: 'default',
+      // @ts-ignore
+      type: 'remote_elasticsearch',
+      hosts: ['http://127.0.0.1:9201'],
+    },
   };
   return {
     outputService: {
@@ -375,6 +384,23 @@ describe('getFullAgentPolicy', () => {
     expect(agentPolicy?.outputs.default).toBeDefined();
   });
 
+  it('should use output id as the default policy id when remote elasticsearch', async () => {
+    mockAgentPolicy({
+      id: 'policy',
+      status: 'active',
+      package_policies: [],
+      is_managed: false,
+      namespace: 'default',
+      revision: 1,
+      data_output_id: 'test-remote-id',
+      monitoring_output_id: 'test-remote-id',
+    });
+
+    const agentPolicy = await getFullAgentPolicy(savedObjectsClientMock.create(), 'agent-policy');
+
+    expect(agentPolicy?.outputs['test-remote-id']).toBeDefined();
+  });
+
   it('should return the sourceURI from the agent policy', async () => {
     mockAgentPolicy({
       namespace: 'default',

x-pack/plugins/fleet/server/services/agent_policies/full_agent_policy.ts

@@ -31,8 +31,12 @@ import type {
   PackageInfo,
 } from '../../../common/types';
 import { agentPolicyService } from '../agent_policy';
-import { dataTypes, kafkaCompressionType, outputType } from '../../../common/constants';
-import { DEFAULT_OUTPUT } from '../../constants';
+import {
+  dataTypes,
+  DEFAULT_OUTPUT,
+  kafkaCompressionType,
+  outputType,
+} from '../../../common/constants';
 
 import { getPackageInfo } from '../epm/packages';
 import { pkgToPkgKey, splitPkgKey } from '../epm/registry';
@@ -494,10 +498,9 @@ export function transformOutputToFullPolicyOutput(
  * we use "default" for the default policy to avoid breaking changes
  */
 function getOutputIdForAgentPolicy(output: Output) {
-  if (output.is_default) {
+  if (output.is_default && output.type === outputType.Elasticsearch) {
     return DEFAULT_OUTPUT.name;
   }
-
   return output.id;
 }