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Postgresql RDS query configurations
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‎quickstarts/RDS/101-use-case-postgresql-rds-query-configurations/README.md‎

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## Introduction
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<!-- DOCS_DESCRIPTION_CN -->
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本示例用于在阿里云查询RDS PostgreSQL实例的相关配置，涉及到专有网络VPC，交换机，RDS PostgreSQL实例的创建，与实例可用区资源，可购买的实例规格，实例地域信息，实例列表等资源的查询。
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本示例来自[通过 Terraform 查询实例相关配置](http://help.aliyun.com/document_detail/456026.htm)。
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<!-- DOCS_DESCRIPTION_CN -->
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<!-- DOCS_DESCRIPTION_EN -->
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This example is used to to query the configurations of an ApsaraDB RDS for PostgreSQL instance on Alibaba Cloud, which involves the creation of resources such as Virtual Private Cloud, virtual Switches，ApsaraDB RDS for PostgreSQL instance，and the query of instance resources such as instance zones resources, purchasable instance specifications, instance region information, instance lists, etc.
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This example is from [Query instance configurations](http://help.aliyun.com/document_detail/456026.htm).
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<!-- DOCS_DESCRIPTION_EN -->
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<!-- BEGIN_TF_DOCS -->
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## Providers
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| Name | Version |
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|------|---------|
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| <a name="provider_alicloud"></a> [alicloud](#provider\_alicloud) | n/a |
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## Modules
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No modules.
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## Resources
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| Name | Type |
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|------|------|
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| [alicloud_db_instance.instance](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/db_instance) | resource |
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| [alicloud_vpc.main](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/vpc) | resource |
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| [alicloud_vswitch.main](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/vswitch) | resource |
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| [alicloud_db_instance_classes.queryclasses](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/data-sources/db_instance_classes) | data source |
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| [alicloud_db_instances.queryinstance](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/data-sources/db_instances) | data source |
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| [alicloud_db_instances.queryinstances](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/data-sources/db_instances) | data source |
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| [alicloud_db_zones.queryzones](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/data-sources/db_zones) | data source |
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| [alicloud_regions.query_regions](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/data-sources/regions) | data source |
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## Inputs
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| Name | Description | Type | Default | Required |
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|------|-------------|------|---------|:--------:|
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| <a name="input_instance_type"></a> [instance\_type](#input\_instance\_type) | n/a | `string` | `"pg.n2.2c.2m"` | no |
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| <a name="input_region"></a> [region](#input\_region) | n/a | `string` | `"cn-hangzhou"` | no |
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| <a name="input_zone_id"></a> [zone\_id](#input\_zone\_id) | n/a | `string` | `"cn-hangzhou-b"` | no |
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<!-- END_TF_DOCS -->
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## Documentation
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<!-- docs-link -->
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The template is based on Aliyun document: [Postgresql RDS query configurations](http://help.aliyun.com/document_detail/456026.htm)
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<!-- docs-link -->

‎quickstarts/RDS/101-use-case-postgresql-rds-query-configurations/main.tf‎

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variable "region" {
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default = "cn-hangzhou"
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}
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provider "alicloud" {
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region = var.region
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}
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variable "zone_id" {
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default = "cn-hangzhou-b"
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}
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variable "instance_type" {
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default = "pg.n2.2c.2m"
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}
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# 创建VPC
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resource "alicloud_vpc" "main" {
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vpc_name = "alicloud"
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cidr_block = "172.16.0.0/16"
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}
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# 创建交换机
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resource "alicloud_vswitch" "main" {
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vpc_id = alicloud_vpc.main.id
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cidr_block = "172.16.192.0/20"
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zone_id = var.zone_id
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depends_on = [alicloud_vpc.main]
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}
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# 创建RDS PostgreSQL实例
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resource "alicloud_db_instance" "instance" {
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engine = "PostgreSQL"
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engine_version = "13.0"
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instance_type = var.instance_type
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instance_storage = "30"
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instance_charge_type = "Postpaid"
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vswitch_id = alicloud_vswitch.main.id
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}
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# 查询可用区资源
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data "alicloud_db_zones" "queryzones" {
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instance_charge_type = "PostPaid"
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engine = "PostgreSQL"
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db_instance_storage_type = "cloud_essd"
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}
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# 询可购买的实例规格
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data "alicloud_db_instance_classes" "queryclasses" {
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instance_charge_type = "PostPaid"
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engine = "PostgreSQL"
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db_instance_storage_type = "cloud_essd"
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}
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# 查询地域信息
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data "alicloud_regions" "query_regions" {
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}
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# 查询实例列表
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data "alicloud_db_instances" "queryinstances" {
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}
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# 查询指定实例
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data "alicloud_db_instances" "queryinstance" {
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ids = [alicloud_db_instance.instance.id]
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# 查询指定地域（环境变量中设置的地域）下所有实例
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# ids = []
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engine = "PostgreSQL"
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}

‎quickstarts/RDS/101-use-case-postgresql-rds-query-configurations/provider.tf‎

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

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