Merge remote-tracking branch 'elastic/master' into add-public-key-header

* elastic/master:
  Do not serialize basic license exp in x-pack info (elastic#30848)
  Change BWC version for VerifyRepositoryResponse (elastic#30796)
  [DOCS] Document index name limitations (elastic#30826)
  Harmonize include_defaults tests (elastic#30700)
  [TEST] Mute {p0=snapshot.get_repository/10_basic/Verify created repository} YAML test

docs/reference/indices/create-index.asciidoc

@@ -1,16 +1,39 @@
 [[indices-create-index]]
 == Create Index
 
-The create index API allows to instantiate an index. Elasticsearch
-provides support for multiple indices, including executing operations
-across several indices.
+The Create Index API is used to manually create an index in Elasticsearch.  All documents in Elasticsearch
+are stored inside of one index or another.
+
+The most basic command is the following:
+
+[source,js]
+--------------------------------------------------
+PUT twitter
+--------------------------------------------------
+// CONSOLE
+
+This create an index named `twitter` with all default setting.
+
+[NOTE]
+.Index name limitations
+======================================================
+There are several limitations to what you can name your index.  The complete list of limitations are:
+
+- Lowercase only
+- Cannot include `\`, `/`, `*`, `?`, `"`, `<`, `>`, `|`, ` ` (space character), `,`, `#`
+- Indices prior to 7.0 could contain a colon (`:`), but that's been deprecated and won't be supported in 7.0+
+- Cannot start with `-`, `_`, `+`
+- Cannot be `.` or ``..`
+- Cannot be longer than 255 bytes (note it is bytes, so multi-byte characters will count towards the 255 limit faster)
+
+======================================================
 
 [float]
 [[create-index-settings]]
 === Index Settings
 
 Each index created can have specific settings
-associated with it.
+associated with it, defined in the body:
 
 [source,js]
 --------------------------------------------------
@@ -28,25 +51,6 @@ PUT twitter
 <1> Default for `number_of_shards` is 1
 <2> Default for `number_of_replicas` is 1 (ie one replica for each primary shard)
 
-The above second curl example shows how an index called `twitter` can be
-created with specific settings for it using http://www.yaml.org[YAML].
-In this case, creating an index with 3 shards, each with 2 replicas. The
-index settings can also be defined with http://www.json.org[JSON]:
-
-[source,js]
---------------------------------------------------
-PUT twitter
-{
-    "settings" : {
-        "index" : {
-            "number_of_shards" : 3,
-            "number_of_replicas" : 2
-        }
-    }
-}
---------------------------------------------------
-// CONSOLE
-
 or more simplified
 
 [source,js]

rest-api-spec/src/main/resources/rest-api-spec/test/indices.get_settings/30_defaults.yml

@@ -0,0 +1,28 @@
+---
+setup:
+  - do:
+      indices.create:
+        body:
+          settings:
+            index:
+              number_of_shards: 1
+              number_of_replicas: 1
+        index: test-index
+---
+Test retrieval of default settings:
+  - skip:
+      version: " - 6.3.99"
+      reason: include_defaults will not work in mixed-mode clusters containing nodes pre-6.4
+  - do:
+      indices.get_settings:
+        flat_settings: true
+        index: test-index
+  - is_false:
+      test-index.settings.index\.refresh_interval
+  - do:
+      indices.get_settings:
+        include_defaults: true
+        flat_settings: true
+        index: test-index
+  - match:
+      test-index.defaults.index\.refresh_interval: "1s"

rest-api-spec/src/main/resources/rest-api-spec/test/indices.put_settings/11_reset.yml

@@ -23,15 +23,3 @@ Test reset index settings:
       indices.get_settings:
         flat_settings: false
   - is_false: test-index.settings.index\.refresh_interval
-
-# Disabled until https://github.com/elastic/elasticsearch/pull/29229 is back-ported
-# That PR changed the execution path of index settings default to be on the master
-# until the PR is back-ported the old master will not return default settings.
-#
-#  - do:
-#      indices.get_settings:
-#        include_defaults: true
-#        flat_settings: true
-#        index: test-index
-#  - match:
-#      test-index.defaults.index\.refresh_interval: "1s"

rest-api-spec/src/main/resources/rest-api-spec/test/snapshot.get_repository/10_basic.yml

@@ -51,6 +51,9 @@ setup:
 
 ---
 "Verify created repository":
+  - skip:
+      version:     "all"
+      reason:      AwaitsFix for https://github.com/elastic/elasticsearch/issues/30807
   - do:
       snapshot.verify_repository:
         repository: test_repo_get_2

server/src/main/java/org/elasticsearch/action/admin/cluster/repositories/verify/VerifyRepositoryResponse.java

@@ -140,7 +140,7 @@ public VerifyRepositoryResponse(ClusterName clusterName, DiscoveryNode[] nodes)
     @Override
     public void readFrom(StreamInput in) throws IOException {
         super.readFrom(in);
-        if (in.getVersion().onOrAfter(Version.V_7_0_0_alpha1)) {
+        if (in.getVersion().onOrAfter(Version.V_6_4_0)) {
             this.nodes = in.readList(NodeView::new).stream().map(n -> n.convertToDiscoveryNode()).collect(Collectors.toList());
         } else {
             clusterName = new ClusterName(in);
@@ -151,7 +151,7 @@ public void readFrom(StreamInput in) throws IOException {
     @Override
     public void writeTo(StreamOutput out) throws IOException {
         super.writeTo(out);
-        if (out.getVersion().onOrAfter(Version.V_7_0_0_alpha1)) {
+        if (out.getVersion().onOrAfter(Version.V_6_4_0)) {
             out.writeList(getNodes());
         } else {
             clusterName.writeTo(out);

x-pack/plugin/core/src/main/java/org/elasticsearch/license/XPackInfoResponse.java

@@ -123,13 +123,15 @@ public License.Status getStatus() {
 
         @Override
         public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
-            return builder.startObject()
-                    .field("uid", uid)
-                    .field("type", type)
-                    .field("mode", mode)
-                    .field("status", status.label())
-                    .timeField("expiry_date_in_millis", "expiry_date", expiryDate)
-                    .endObject();
+            builder.startObject()
+                .field("uid", uid)
+                .field("type", type)
+                .field("mode", mode)
+                .field("status", status.label());
+            if (expiryDate != LicenseService.BASIC_SELF_GENERATED_LICENSE_EXPIRATION_MILLIS) {
+                builder.timeField("expiry_date_in_millis", "expiry_date", expiryDate);
+            }
+            return builder.endObject();
         }
 
         public void writeTo(StreamOutput out) throws IOException {