fix: improve the examples

Author: shanye997

examples/complete/main.tf

@@ -1,3 +1,7 @@
+provider "alicloud" {
+  region = "cn-zhangjiakou"
+}
+
 data "alicloud_resource_manager_resource_groups" "default" {
 }
 
@@ -6,12 +10,15 @@ data "alicloud_zones" "default" {
 }
 
 data "alicloud_images" "default" {
-  name_regex = "^centos_6"
+  most_recent   = true
+  instance_type = data.alicloud_instance_types.default.instance_types[0].id
 }
 
 data "alicloud_instance_types" "default" {
   availability_zone    = data.alicloud_zones.default.zones[0].id
-  instance_type_family = "ecs.c6"
+  cpu_core_count       = 2
+  memory_size          = 8
+  instance_type_family = "ecs.g9i"
 }
 
 data "alicloud_db_instance_classes" "default" {
@@ -53,14 +60,14 @@ module "example" {
 
   #alicloud_instance
   instance_type              = data.alicloud_instance_types.default.instance_types[0].id
-  system_disk_category       = "cloud_efficiency"
+  system_disk_category       = "cloud_essd"
   system_disk_name           = var.system_disk_name
   system_disk_description    = var.system_disk_description
   image_id                   = data.alicloud_images.default.images[0].id
   internet_max_bandwidth_out = var.internet_max_bandwidth_out
   ecs_size                   = 1200
   data_disks_name            = "data_disks_name"
-  category                   = "cloud_efficiency"
+  category                   = "cloud_essd"
   description                = "tf-ecs-rds-redis-description"
   encrypted                  = true