Merge branch '8.x' into backport/8.x/pr-194061

.buildkite/ftr_oblt_serverless_configs.yml

@@ -9,6 +9,7 @@ disabled:
   - x-pack/test_serverless/api_integration/test_suites/observability/config.feature_flags.ts
   - x-pack/test_serverless/api_integration/test_suites/observability/common_configs/config.group1.ts
   - x-pack/test_serverless/api_integration/test_suites/observability/fleet/config.ts
+  - x-pack/test_serverless/api_integration/test_suites/observability/ai_assistant/config.ts
   - x-pack/test_serverless/functional/test_suites/observability/config.ts
   - x-pack/test_serverless/functional/test_suites/observability/config.examples.ts
   - x-pack/test_serverless/functional/test_suites/observability/config.feature_flags.ts

.github/workflows/alert-failed-test.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout kibana-operations
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
         with:
           repository: 'elastic/kibana-operations'
           ref: main

.github/workflows/codeql.yml

@@ -22,7 +22,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
       with:
         ref: ${{ matrix.branch }}
 

.github/workflows/label-failed-test.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout kibana-operations
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
         with:
           repository: 'elastic/kibana-operations'
           ref: main

.github/workflows/launchdarkly-code-references.yml

@@ -16,7 +16,7 @@ jobs:
     if: github.event.repository.fork == false
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
         with:
           fetch-depth: 11 # This value must be set if the lookback configuration option is not disabled for find-code-references. Read more: https://github.com/launchdarkly/ld-find-code-refs#searching-for-unused-flags-extinctions
       - name: LaunchDarkly Code References

.github/workflows/on-merge.yml

@@ -25,7 +25,7 @@ jobs:
       )
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
         with:
           repository: 'elastic/kibana-github-actions'
           ref: main

.github/workflows/skip-failed-test.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
         with:
           repository: 'elastic/kibana-github-actions'
           ref: main
@@ -30,7 +30,7 @@ jobs:
           token: ${{secrets.KIBANAMACHINE_TOKEN}}
 
       - name: Checkout kibana-operations
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
         with:
           repository: 'elastic/kibana-operations'
           ref: main

docs/search/search-connection-details.asciidoc

@@ -5,3 +5,72 @@
 <titleabbrev>Connection details</titleabbrev>
 ++++
 
+To connect to your {es} deployment, you need either a Cloud ID or an {es} endpoint, depending on the
+deployment type you use. For secure connections, it’s recommended to use an API key for authentication.
+
+* Learn how to <<find-cloud-id-cloud-self-managed, find your Cloud ID>> for Elastic Cloud or self-hosted deployments.
+* Learn how to <<create-an-api-key-cloud-self-managed, create an API key>> for Elastic Cloud or self-hosted deployments.  
+* Learn how to <<find-cloud-id-serverless, find your {es} endpoint or Cloud ID>> for a serverless deployment.  
+* Learn how to <<create-an-api-key-serverless, create an API key>> for a serverless deployment.
+
+[float]
+=== Elastic Cloud and self-hosted deployments
+
+[float]
+[[find-cloud-id-cloud-self-managed]]
+==== Find your Cloud ID
+
+. Navigate to the Elastic Cloud home page.
+. In the main menu, click *Manage this deployment*.
++
+[.screenshot]
+image::manage-deployment.png[width=750]
+. The Cloud ID is displayed on the right side of the page.
++
+[.screenshot]
+image::cloud-id.png[width=750]
+
+[float]
+[[create-an-api-key-cloud-self-managed]]
+==== Create an API key
+
+. To navigate to *API keys*, use the <<kibana-navigation-search,*global search bar*>>.
++
+[.screenshot]
+image::api-keys-search-bar.png[width=750]
+. Click *Create API key*.
++
+[.screenshot]
+image::click-create-api-key.png[width=750]
+. Enter the API key details, and click *Create API key*.
+. Copy and securely store the API key, as it will not be shown again.
+
+[float]
+=== Serverless deployments
+
+[float]
+[[find-cloud-id-serverless]]
+==== Find your Elasticsearch endpoint
+
+. Navigate to the serverless project's home page.
+. Scroll down to the *Copy your connection details* section, and copy the *Elasticsearch endpoint*.
++
+[.screenshot]
+image::serverless-connection-details.png[width=750]
+
+[NOTE]
+====
+The *Cloud ID* is also displayed in the Copy your connection details section, which you can use with specific client libraries and connectors.
+====
+
+[float]
+[[create-an-api-key-serverless]]
+==== Create an API key
+
+. Navigate to the serverless project's home page.
+. Scroll down to the *Add an API Key* section, and click *New*.
++
+[.screenshot]
+image::serverless-create-an-api-key.png[width=750]
+. Enter the API key details, and click *Create API key*.
+. Copy and securely store the API key, as it will not be shown again.

docs/setup/settings.asciidoc

@@ -450,7 +450,7 @@ responses to the client from the {kib} server, and specifies what value is used.
 Header names and values to send on all responses to the client from the {kib} server. *Default: `{}`*
 
 [[server-shutdownTimeout]] `server.shutdownTimeout`::
-Sets the grace period for {kib} to attempt to resolve any ongoing HTTP requests after receiving a `SIGTERM`/`SIGINT` signal, and before shutting down. Any new HTTP requests received during this period are rejected with a `503` response. *Default: `30s`*
+Sets the grace period for {kib} to attempt to resolve any ongoing HTTP requests after receiving a `SIGTERM`/`SIGINT` signal, and before shutting down. Any new HTTP requests received during this period are rejected, because the incoming socket is closed without further processing. *Default: `30s`*
 
 [[server-host]] `server.host`::
 This setting specifies the host of the

fleet_packages.json

@@ -56,6 +56,6 @@
   },
   {
     "name": "security_detection_engine",
-    "version": "8.15.5"
+    "version": "8.15.6"
   }
 ]