Manage postgresql instance

Author: lsy1968

quickstarts/RDS/101-use-case-manage-postgresql-instance/README.md

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+<!-- BEGIN_TF_DOCS -->
+## Providers
+
+| Name | Version |
+|------|---------|
+| <a name="provider_alicloud"></a> [alicloud](#provider\_alicloud) | n/a |
+
+## Modules
+
+No modules.
+
+## Resources
+
+| Name | Type |
+|------|------|
+| [alicloud_db_instance.instance](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/db_instance) | resource |
+| [alicloud_vpc.main](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/vpc) | resource |
+| [alicloud_vswitch.main](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/vswitch) | resource |
+
+## Inputs
+
+| Name | Description | Type | Default | Required |
+|------|-------------|------|---------|:--------:|
+| <a name="input_instance_type"></a> [instance\_type](#input\_instance\_type) | n/a | `string` | `"pg.n2.2c.2m"` | no |
+| <a name="input_region"></a> [region](#input\_region) | n/a | `string` | `"cn-hangzhou"` | no |
+| <a name="input_zone_id"></a> [zone\_id](#input\_zone\_id) | n/a | `string` | `"cn-hangzhou-b"` | no |
+<!-- END_TF_DOCS -->
+
+## Documentation
+<!-- docs-link --> 
+
+The template is based on Aliyun document: [Manage postgresql instance](http://help.aliyun.com/document_detail/456025.htm) 
+
+<!-- docs-link --> 

quickstarts/RDS/101-use-case-manage-postgresql-instance/main.tf

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+variable "region" {
+  default = "cn-hangzhou"
+}
+
+provider "alicloud" {
+  region = var.region
+}
+
+variable "zone_id" {
+  default = "cn-hangzhou-b"
+}
+
+variable "instance_type" {
+  default = "pg.n2.2c.2m"
+}
+
+# 创建VPC
+resource "alicloud_vpc" "main" {
+  vpc_name   = "alicloud"
+  cidr_block = "172.16.0.0/16"
+}
+
+# 创建交换机
+resource "alicloud_vswitch" "main" {
+  vpc_id     = alicloud_vpc.main.id
+  cidr_block = "172.16.192.0/20"
+  zone_id    = var.zone_id
+  depends_on = [alicloud_vpc.main]
+}
+
+# 创建RDS PostgreSQL实例
+resource "alicloud_db_instance" "instance" {
+  engine               = "PostgreSQL"
+  engine_version       = "13.0"
+  instance_type        = var.instance_type
+  instance_storage     = "30"
+  instance_charge_type = "Postpaid"
+  vswitch_id           = alicloud_vswitch.main.id
+  # 修改实例名称
+  # instance_name    = "terraformtest"
+  # 修改实例配置（以修改RDS PostgreSQL实例的存储空间为50 GB为例）
+  # instance_storage = "50"
+  # 设置存储空间自动扩容
+  # storage_auto_scale = "Enable"
+  # storage_threshold = "30"
+  # storage_upper_bound = "100"
+  # 修改实例可维护时间段
+  # maintain_time    = "05:00Z-06:00Z"
+  # 修改实例资源组
+  # resource_group_id = "rg-****"
+  # 修改实例可用性检测方式（仅高可用实例）
+  # tcp_connection_type = "SHORT"
+  # 如果不需要创建VPC和交换机，使用已有的VPC和交换机
+  # vswitch_id       = "vsw-****"
+  # 创建多个配置相同的RDS PostgreSQL实例，x为需要创建的实例数量
+  #count = x
+}

quickstarts/RDS/101-use-case-manage-postgresql-instance/provider.tf

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+terraform {
+  required_providers {
+    alicloud = {
+      source = "aliyun/alicloud"
+    }
+  }
+}