Support imports on plugin framework index

Author: tobio

internal/elasticsearch/index/index/resource.go

@@ -5,9 +5,15 @@ import (
 
 	"github.com/elastic/terraform-provider-elasticstack/internal/clients"
 	"github.com/hashicorp/terraform-plugin-framework/diag"
+	"github.com/hashicorp/terraform-plugin-framework/path"
 	"github.com/hashicorp/terraform-plugin-framework/resource"
 )
 
+// Ensure provider defined types fully satisfy framework interfaces
+var _ resource.Resource = &Resource{}
+var _ resource.ResourceWithConfigure = &Resource{}
+var _ resource.ResourceWithImportState = &Resource{}
+
 type Resource struct {
 	client *clients.ApiClient
 }
@@ -33,3 +39,8 @@ func (r *Resource) Configure(ctx context.Context, request resource.ConfigureRequ
 func (r *Resource) Metadata(ctx context.Context, request resource.MetadataRequest, response *resource.MetadataResponse) {
 	response.TypeName = request.ProviderTypeName + "_elasticsearch_index"
 }
+
+func (r *Resource) ImportState(ctx context.Context, req resource.ImportStateRequest, resp *resource.ImportStateResponse) {
+	// Retrieve import ID and save to id attribute
+	resource.ImportStatePassthroughID(ctx, path.Root("id"), req, resp)
+}