Convert schema from blocks to nested attributes

Co-authored-by: tobio <444668+tobio@users.noreply.github.com>

Author: Copilot

docs/resources/elasticsearch_alias.md

@@ -22,14 +22,14 @@ Manages an Elasticsearch alias. See, https://www.elastic.co/guide/en/elasticsear
 
 ### Optional
 
-- `read_indices` (Block Set) Set of read indices for the alias. (see [below for nested schema](#nestedblock--read_indices))
-- `write_index` (Block, Optional) The write index for the alias. Only one write index is allowed per alias. (see [below for nested schema](#nestedblock--write_index))
+- `read_indices` (Attributes Set) Set of read indices for the alias. (see [below for nested schema](#nestedatt--read_indices))
+- `write_index` (Attributes) The write index for the alias. Only one write index is allowed per alias. (see [below for nested schema](#nestedatt--write_index))
 
 ### Read-Only
 
 - `id` (String) Generated ID of the alias resource.
 
-<a id="nestedblock--read_indices"></a>
+<a id="nestedatt--read_indices"></a>
 ### Nested Schema for `read_indices`
 
 Required:
@@ -45,7 +45,7 @@ Optional:
 - `search_routing` (String) Value used to route search operations to a specific shard.
 
 
-<a id="nestedblock--write_index"></a>
+<a id="nestedatt--write_index"></a>
 ### Nested Schema for `write_index`
 
 Required:

internal/elasticsearch/index/alias/acc_test.go

@@ -214,7 +214,7 @@ resource "elasticstack_elasticsearch_data_stream" "test_ds" {
 resource "elasticstack_elasticsearch_alias" "test_alias" {
   name = var.alias_name
 
-  write_index {
+  write_index = {
     name = elasticstack_elasticsearch_data_stream.test_ds.name
   }
 }
@@ -313,7 +313,7 @@ provider "elasticstack" {
 resource "elasticstack_elasticsearch_alias" "test_alias" {
   name = var.alias_name
 
-  write_index {
+  write_index = {
     name = var.index_name
   }
 }
@@ -342,13 +342,13 @@ provider "elasticstack" {
 resource "elasticstack_elasticsearch_alias" "test_alias" {
   name = var.alias_name
 
-  write_index {
+  write_index = {
     name = var.index_name2
   }
 
-  read_indices {
+  read_indices = [{
     name = var.index_name
-  }
+  }]
 }
 `
 
@@ -375,7 +375,7 @@ provider "elasticstack" {
 resource "elasticstack_elasticsearch_alias" "test_alias" {
   name = var.alias_name
 
-  write_index {
+  write_index = {
     name    = var.index_name
     index_routing = "write-routing"
     filter = jsonencode({
@@ -385,14 +385,14 @@ resource "elasticstack_elasticsearch_alias" "test_alias" {
     })
   }
 
-  read_indices {
+  read_indices = [{
     name = var.index_name2
     filter = jsonencode({
       term = {
         status = "draft"
       }
     })
-  }
+  }]
 }
 `
 
@@ -424,7 +424,7 @@ provider "elasticstack" {
 resource "elasticstack_elasticsearch_alias" "test_alias" {
   name = var.alias_name
 
-  write_index {
+  write_index = {
     name = var.index_name1
   }
 }
@@ -458,13 +458,13 @@ provider "elasticstack" {
 resource "elasticstack_elasticsearch_alias" "test_alias" {
   name = var.alias_name
 
-  write_index {
+  write_index = {
     name = var.index_name2
   }
 
-  read_indices {
+  read_indices = [{
     name = var.index_name1
-  }
+  }]
 }
 `
 
@@ -496,17 +496,18 @@ provider "elasticstack" {
 resource "elasticstack_elasticsearch_alias" "test_alias" {
   name = var.alias_name
 
-  write_index {
+  write_index = {
     name = var.index_name3
   }
 
-  read_indices {
-    name = var.index_name1
-  }
-
-  read_indices {
-    name = var.index_name2
-  }
+  read_indices = [
+    {
+      name = var.index_name1
+    },
+    {
+      name = var.index_name2
+    }
+  ]
 }
 `
 
@@ -538,12 +539,12 @@ provider "elasticstack" {
 resource "elasticstack_elasticsearch_alias" "test_alias" {
   name = var.alias_name
 
-  write_index {
+  write_index = {
     name = var.index_name3
   }
 
-  read_indices {
+  read_indices = [{
     name = var.index_name2
-  }
+  }]
 }
 `

internal/elasticsearch/index/alias/schema.go

@@ -31,10 +31,9 @@ func (r *aliasResource) Schema(ctx context.Context, req resource.SchemaRequest,
 					stringplanmodifier.RequiresReplace(),
 				},
 			},
-		},
-		Blocks: map[string]schema.Block{
-			"write_index": schema.SingleNestedBlock{
+			"write_index": schema.SingleNestedAttribute{
 				Description: "The write index for the alias. Only one write index is allowed per alias.",
+				Optional:    true,
 				Attributes: map[string]schema.Attribute{
 					"name": schema.StringAttribute{
 						Description: "Name of the write index.",
@@ -65,9 +64,10 @@ func (r *aliasResource) Schema(ctx context.Context, req resource.SchemaRequest,
 					},
 				},
 			},
-			"read_indices": schema.SetNestedBlock{
+			"read_indices": schema.SetNestedAttribute{
 				Description: "Set of read indices for the alias.",
-				NestedObject: schema.NestedBlockObject{
+				Optional:    true,
+				NestedObject: schema.NestedAttributeObject{
 					Attributes: map[string]schema.Attribute{
 						"name": schema.StringAttribute{
 							Description: "Name of the read index.",