Merge branch '6.x' into ccr-6.x

* 6.x:
  Only enforce password hashing check if FIPS enabled (#32383)
  Introduce fips_mode setting and associated checks (#32326)
  [DOCS] Fix formatting error in Slack action
  Ingest: Support integer and long hex values in convert (#32213)
  Release pipelined request in netty server tests (#32368)
  Add opaque_id to index audit logging (#32260)
  Painless: Fix documentation links to use existing refs (#32335)
  Painless: Decouple PainlessLookupBuilder and Whitelists (#32346)
  [DOCS] Adds recommendation for xpack.security.enabled (#32345)
  [test] package pre-install java check (#32259)
  [DOCS] Adds link from bucket_span property to common time units
  [DOCS] Fixes typo in ML aggregations page
  [ML][DOCS] Add documentation for detector rules and filters (#32013)
  Bump the 6.x branch to 6.5.0 (#32361)
  fixes broken build repository-s3 for third-party-tests

Author: dnhatn

buildSrc/version.properties

@@ -1,4 +1,4 @@
-elasticsearch     = 6.4.0
+elasticsearch     = 6.5.0
 lucene            = 7.5.0-snapshot-b9e064b935
 
 # optional dependencies

docs/Versions.asciidoc

@@ -1,4 +1,4 @@
-:version:               6.4.0
+:version:               6.5.0
 :major-version:         6.x
 :lucene_version:        7.5.0
 :lucene_version_path:   7_5_0

docs/painless/painless-contexts.asciidoc

@@ -1,9 +1,6 @@
 [[painless-contexts]]
 == Painless contexts
 
-:es_version: https://www.elastic.co/guide/en/elasticsearch/reference/master
-:xp_version: https://www.elastic.co/guide/en/x-pack/current
-
 A Painless script is evaluated within a context. Each context has values that
 are available as local variables, a whitelist that controls the available
 classes, and the methods and fields within those classes (API), and
@@ -18,41 +15,41 @@ specialized code may define new ways to use a Painless script.
 | Name                              | Painless Documentation
                                     | Elasticsearch Documentation
 | Update                            | <<painless-update-context, Painless Documentation>>
-                                    | {es_version}/docs-update.html[Elasticsearch Documentation]
+                                    | {ref}/docs-update.html[Elasticsearch Documentation]
 | Update by query                   | <<painless-update-by-query-context, Painless Documentation>>
-                                    | {es_version}/docs-update-by-query.html[Elasticsearch Documentation]
+                                    | {ref}/docs-update-by-query.html[Elasticsearch Documentation]
 | Reindex                           | <<painless-reindex-context, Painless Documentation>>
-                                    | {es_version}/docs-reindex.html[Elasticsearch Documentation]
+                                    | {ref}/docs-reindex.html[Elasticsearch Documentation]
 | Sort                              | <<painless-sort-context, Painless Documentation>>
-                                    | {es_version}/search-request-sort.html[Elasticsearch Documentation]
+                                    | {ref}/search-request-sort.html[Elasticsearch Documentation]
 | Similarity                        | <<painless-similarity-context, Painless Documentation>>
-                                    | {es_version}/index-modules-similarity.html[Elasticsearch Documentation]
-| Weight                            | <<painless-similarity-context, Painless Documentation>>
-                                    | {es_version}/index-modules-similarity.html[Elasticsearch Documentation]
+                                    | {ref}/index-modules-similarity.html[Elasticsearch Documentation]
+| Weight                            | <<painless-weight-context, Painless Documentation>>
+                                    | {ref}/index-modules-similarity.html[Elasticsearch Documentation]
 | Score                             | <<painless-score-context, Painless Documentation>>
-                                    | {es_version}/query-dsl-function-score-query.html[Elasticsearch Documentation]
+                                    | {ref}/query-dsl-function-score-query.html[Elasticsearch Documentation]
 | Field                             | <<painless-field-context, Painless Documentation>>
-                                    | {es_version}/search-request-script-fields.html[Elasticsearch Documentation]
+                                    | {ref}/search-request-script-fields.html[Elasticsearch Documentation]
 | Filter                            | <<painless-filter-context, Painless Documentation>>
-                                    | {es_version}/query-dsl-script-query.html[Elasticsearch Documentation]
+                                    | {ref}/query-dsl-script-query.html[Elasticsearch Documentation]
 | Minimum should match              | <<painless-min-should-match-context, Painless Documentation>>
-                                    | {es_version}/query-dsl-terms-set-query.html[Elasticsearch Documentation]
+                                    | {ref}/query-dsl-terms-set-query.html[Elasticsearch Documentation]
 | Metric aggregation initialization | <<painless-metric-agg-init-context, Painless Documentation>>
-                                    | {es_version}/search-aggregations-metrics-scripted-metric-aggregation.html[Elasticsearch Documentation]
+                                    | {ref}/search-aggregations-metrics-scripted-metric-aggregation.html[Elasticsearch Documentation]
 | Metric aggregation map            | <<painless-metric-agg-map-context, Painless Documentation>>
-                                    | {es_version}/search-aggregations-metrics-scripted-metric-aggregation.html[Elasticsearch Documentation]
+                                    | {ref}/search-aggregations-metrics-scripted-metric-aggregation.html[Elasticsearch Documentation]
 | Metric aggregation combine        | <<painless-metric-agg-combine-context, Painless Documentation>>
-                                    | {es_version}/search-aggregations-metrics-scripted-metric-aggregation.html[Elasticsearch Documentation]
+                                    | {ref}/search-aggregations-metrics-scripted-metric-aggregation.html[Elasticsearch Documentation]
 | Metric aggregation reduce         | <<painless-metric-agg-reduce-context, Painless Documentation>>
-                                    | {es_version}/search-aggregations-metrics-scripted-metric-aggregation.html[Elasticsearch Documentation]
+                                    | {ref}/search-aggregations-metrics-scripted-metric-aggregation.html[Elasticsearch Documentation]
 | Bucket aggregation                | <<painless-bucket-agg-context, Painless Documentation>>
-                                    | {es_version}/search-aggregations-pipeline-bucket-script-aggregation.html[Elasticsearch Documentation]
+                                    | {ref}/search-aggregations-pipeline-bucket-script-aggregation.html[Elasticsearch Documentation]
 | Ingest processor                  | <<painless-ingest-processor-context, Painless Documentation>>
-                                    | {es_version}/script-processor.html[Elasticsearch Documentation]
+                                    | {ref}/script-processor.html[Elasticsearch Documentation]
 | Watcher condition                 | <<painless-watcher-condition-context, Painless Documentation>>
-                                    | {xp_version}/condition-script.html[Elasticsearch Documentation]
+                                    | {xpack-ref}/condition-script.html[Elasticsearch Documentation]
 | Watcher transform                 | <<painless-watcher-transform-context, Painless Documentation>>
-                                    | {xp_version}/transform-script.html[Elasticsearch Documentation]
+                                    | {xpack-ref}/transform-script.html[Elasticsearch Documentation]
 |====
 
 include::painless-contexts/index.asciidoc[]

docs/painless/painless-contexts/painless-bucket-agg-context.asciidoc

@@ -2,7 +2,7 @@
 === Bucket aggregation context
 
 Use a Painless script in an
-{es_version}/search-aggregations-pipeline-bucket-script-aggregation.html[bucket aggregation]
+{ref}/search-aggregations-pipeline-bucket-script-aggregation.html[bucket aggregation]
 to calculate a value as a result in a bucket.
 
 *Variables*

docs/painless/painless-contexts/painless-field-context.asciidoc

@@ -2,7 +2,7 @@
 === Field context
 
 Use a Painless script to create a
-{es_version}/search-request-script-fields.html[script field] to return
+{ref}/search-request-script-fields.html[script field] to return
 a customized value for each document in the results of a query.
 
 *Variables*
@@ -14,7 +14,7 @@ a customized value for each document in the results of a query.
         Contains the fields of the specified document where each field is a
         `List` of values.
 
-{es_version}/mapping-source-field.html[`ctx['_source']`] (`Map`)::
+{ref}/mapping-source-field.html[`ctx['_source']`] (`Map`)::
         Contains extracted JSON in a `Map` and `List` structure for the fields
         existing in a stored document.
 

docs/painless/painless-contexts/painless-filter-context.asciidoc

@@ -1,7 +1,7 @@
 [[painless-filter-context]]
 === Filter context
 
-Use a Painless script as a {es_version}/query-dsl-script-query.html[filter] in a
+Use a Painless script as a {ref}/query-dsl-script-query.html[filter] in a
 query to include and exclude documents.
 
 

docs/painless/painless-contexts/painless-ingest-processor-context.asciidoc

@@ -1,18 +1,18 @@
 [[painless-ingest-processor-context]]
 === Ingest processor context
 
-Use a Painless script in an {es_version}/script-processor.html[ingest processor]
+Use a Painless script in an {ref}/script-processor.html[ingest processor]
 to modify documents upon insertion.
 
 *Variables*
 
 `params` (`Map`, read-only)::
         User-defined parameters passed in as part of the query.
 
-{es_version}/mapping-index-field.html[`ctx['_index']`] (`String`)::
+{ref}/mapping-index-field.html[`ctx['_index']`] (`String`)::
         The name of the index.
 
-{es_version}/mapping-type-field.html[`ctx['_type']`] (`String`)::
+{ref}/mapping-type-field.html[`ctx['_type']`] (`String`)::
         The type of document within an index.
 
 `ctx` (`Map`)::
@@ -21,10 +21,10 @@ to modify documents upon insertion.
 
 *Side Effects*
 
-{es_version}/mapping-index-field.html[`ctx['_index']`]::
+{ref}/mapping-index-field.html[`ctx['_index']`]::
         Modify this to change the destination index for the current document.
 
-{es_version}/mapping-type-field.html[`ctx['_type']`]::
+{ref}/mapping-type-field.html[`ctx['_type']`]::
         Modify this to change the type for the current document.
 
 `ctx` (`Map`, read-only)::

docs/painless/painless-contexts/painless-metric-agg-combine-context.asciidoc

@@ -2,7 +2,7 @@
 === Metric aggregation combine context
 
 Use a Painless script to
-{es_version}/search-aggregations-metrics-scripted-metric-aggregation.html[combine]
+{ref}/search-aggregations-metrics-scripted-metric-aggregation.html[combine]
 values for use in a scripted metric aggregation. A combine script is run once
 per shard following a <<painless-metric-agg-map-context, map script>> and is
 optional as part of a full metric aggregation.

docs/painless/painless-contexts/painless-metric-agg-init-context.asciidoc

@@ -2,7 +2,7 @@
 === Metric aggregation initialization context
 
 Use a Painless script to
-{es_version}/search-aggregations-metrics-scripted-metric-aggregation.html[initialize]
+{ref}/search-aggregations-metrics-scripted-metric-aggregation.html[initialize]
 values for use in a scripted metric aggregation. An initialization script is
 run prior to document collection once per shard and is optional as part of the
 full metric aggregation.

docs/painless/painless-contexts/painless-metric-agg-map-context.asciidoc

@@ -2,7 +2,7 @@
 === Metric aggregation map context
 
 Use a Painless script to
-{es_version}/search-aggregations-metrics-scripted-metric-aggregation.html[map]
+{ref}/search-aggregations-metrics-scripted-metric-aggregation.html[map]
 values for use in a scripted metric aggregation. A map script is run once per
 collected document following an optional
 <<painless-metric-agg-init-context, initialization script>> and is required as