Support externally managed aliases in the index resource

Author: tobio

docs/resources/elasticsearch_index.md

@@ -25,12 +25,12 @@ resource "elasticstack_elasticsearch_index" "my_index" {
     name = "my_alias_1"
   }
 
-  alias {
+  alias = [{
     name = "my_alias_2"
     filter = jsonencode({
       term = { "user.id" = "developer" }
     })
-  }
+  }]
 
   mappings = jsonencode({
     properties = {
@@ -60,7 +60,7 @@ resource "elasticstack_elasticsearch_index" "my_index" {
 
 ### Optional
 
-- `alias` (Block Set) Aliases for the index. (see [below for nested schema](#nestedblock--alias))
+- `alias` (Attributes Set) Aliases for the index. (see [below for nested schema](#nestedatt--alias))
 - `analysis_analyzer` (String) A JSON string describing the analyzers applied to the index.
 - `analysis_char_filter` (String) A JSON string describing the char_filters applied to the index.
 - `analysis_filter` (String) A JSON string describing the filters applied to the index.
@@ -136,7 +136,7 @@ resource "elasticstack_elasticsearch_index" "my_index" {
 - `id` (String) Internal identifier of the resource
 - `settings_raw` (String) All raw settings fetched from the cluster.
 
-<a id="nestedblock--alias"></a>
+<a id="nestedatt--alias"></a>
 ### Nested Schema for `alias`
 
 Required:

docs/resources/elasticsearch_alias.md renamed to docs/resources/elasticsearch_index_alias.md

@@ -1,13 +1,13 @@
 
 ---
 # generated by https://github.com/hashicorp/terraform-plugin-docs
-page_title: "elasticstack_elasticsearch_alias Resource - terraform-provider-elasticstack"
-subcategory: "Elasticsearch"
+page_title: "elasticstack_elasticsearch_index_alias Resource - terraform-provider-elasticstack"
+subcategory: "Index"
 description: |-
   Manages an Elasticsearch alias. See the alias documentation https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-aliases.html for more details.
 ---
 
-# elasticstack_elasticsearch_alias (Resource)
+# elasticstack_elasticsearch_index_alias (Resource)
 
 Manages an Elasticsearch alias. See the [alias documentation](https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-aliases.html) for more details.
 

examples/resources/elasticstack_elasticsearch_index/resource.tf

@@ -5,16 +5,14 @@ provider "elasticstack" {
 resource "elasticstack_elasticsearch_index" "my_index" {
   name = "my-index"
 
-  alias {
+  alias = [{
     name = "my_alias_1"
-  }
-
-  alias {
+  }, {
     name = "my_alias_2"
     filter = jsonencode({
       term = { "user.id" = "developer" }
     })
-  }
+  }]
 
   mappings = jsonencode({
     properties = {