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add tech-solution datav-for-digitalization
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‎solution/tech-solution/datav-for-digitalization/README.md‎

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## Introduction
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<!-- DOCS_DESCRIPTION_CN -->
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本示例用于实现解决方案[快速搭建企业经营大屏](https://www.aliyun.com/solution/tech-solution/datav-for-digitalization)，涉及专有网络（VPC）、交换机（VSwitch）、RDS数据库（RDS）等资源的部署。
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<!-- DOCS_DESCRIPTION_CN -->
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<!-- DOCS_DESCRIPTION_EN -->
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This example is used to implement solution [Quickly build a large screen of enterprise management](https://www.aliyun.com/solution/tech-solution/datav-for-digitalization), which involves the creation and deployment of resources such as Virtual Private Cloud (VPC), Virtual Switch (VSwitch), RDS Database (RDS).
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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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| <a name="provider_random"></a> [random](#provider\_random) | 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_account.default](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/db_account) | resource |
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| [alicloud_db_database.database](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/db_database) | resource |
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| [alicloud_db_instance.rds_instance](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/db_instance) | resource |
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| [alicloud_security_group.security_group](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/security_group) | resource |
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| [alicloud_vpc.vpc](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/vpc) | resource |
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| [alicloud_vswitch.vswitch](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/vswitch) | resource |
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| [random_id.suffix](https://registry.terraform.io/providers/hashicorp/random/latest/docs/resources/id) | resource |
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| [alicloud_db_zones.zones_ids](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/data-sources/db_zones) | 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_db_password"></a> [db\_password](#input\_db\_password) | MySQL数据库密码 | `string` | n/a | yes |
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| <a name="input_rds_db_user"></a> [rds\_db\_user](#input\_rds\_db\_user) | 数据库账号 | `string` | `"user_test"` | no |
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<!-- END_TF_DOCS -->

‎solution/tech-solution/datav-for-digitalization/main.tf‎

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# ------------------------------------------------------------------------------
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# 核心资源定义
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#
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# 本文件包含了模块的核心基础设施资源
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# 这里的代码负责根据输入变量来创建和配置所有云资源
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# ------------------------------------------------------------------------------
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# 配置阿里云提供商
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provider "alicloud" {
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region = "cn-hangzhou"
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}
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# 创建一个随机ID
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resource "random_id" "suffix" {
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byte_length = 8
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}
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# 定义一个局部变量
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locals {
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common_name = random_id.suffix.id
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}
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# 查询满足条件的可用区
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data "alicloud_db_zones" "zones_ids" {
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engine = "MySQL"
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engine_version = "8.0"
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instance_charge_type = "PostPaid"
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category = "Basic"
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db_instance_storage_type = "cloud_essd"
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}
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# 创建专有网络VPC
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resource "alicloud_vpc" "vpc" {
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vpc_name = "vpc-${local.common_name}"
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cidr_block = "192.168.0.0/16"
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}
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# 创建交换机VSwitch
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resource "alicloud_vswitch" "vswitch" {
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vpc_id = alicloud_vpc.vpc.id
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zone_id = data.alicloud_db_zones.zones_ids.ids.1
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cidr_block = "192.168.0.0/24"
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vswitch_name = "vsw-${local.common_name}"
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}
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# 创建安全组
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resource "alicloud_security_group" "security_group" {
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vpc_id = alicloud_vpc.vpc.id
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}
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# 创建RDS实例
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resource "alicloud_db_instance" "rds_instance" {
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engine = "MySQL"
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instance_storage = 40
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engine_version = "8.0"
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security_ips = ["192.168.0.0/16"]
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vpc_id = alicloud_vpc.vpc.id
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zone_id = data.alicloud_db_zones.zones_ids.ids.1
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vswitch_id = alicloud_vswitch.vswitch.id
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instance_charge_type = "Postpaid"
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instance_type = "mysql.n2.medium.1"
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category = "Basic"
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db_instance_storage_type = "cloud_essd"
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}
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# 创建数据库
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resource "alicloud_db_database" "database" {
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character_set = "utf8"
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instance_id = alicloud_db_instance.rds_instance.id
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name = "mysqltest"
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}
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# 创建数据库账号
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resource "alicloud_db_account" "default" {
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db_instance_id = alicloud_db_instance.rds_instance.id
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account_name = var.rds_db_user
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account_password = var.db_password
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account_type = "Super"
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}

‎solution/tech-solution/datav-for-digitalization/output.tf‎

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# ------------------------------------------------------------------------------
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# 模块输出值
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#
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# 本文件定义了模块执行成功后返回给调用方的值
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# 这些输出可以被其他 Terraform 配置引用，或在 apply 命令结束后显示给用户
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# ------------------------------------------------------------------------------
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# 输出创建的RDS实例ID
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output "DBInstanceId" {
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value = alicloud_db_instance.rds_instance.id
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description = "RDS 实例 ID"
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}
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# 输出RDS实例的内网连接地址
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output "InnerConnectionString" {
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value = alicloud_db_instance.rds_instance.connection_string
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description = "RDS 内网连接地址"
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}
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# 输出RDS实例的内网端口号
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output "InnerPort" {
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value = alicloud_db_instance.rds_instance.port
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description = "RDS 内网端口"
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}
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# 输出数据库账号。
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output "account_name" {
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value = var.rds_db_user
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description = "数据库账号"
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}
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# 输出数据库密码。
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output "account_password" {
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value = var.db_password
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sensitive = true
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description = "数据库密码"
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}

‎solution/tech-solution/datav-for-digitalization/variable.tf‎

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# ------------------------------------------------------------------------------
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# 模块输入变量
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#
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# 本文件定义了该 Terraform 模块所有可配置的输入变量
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# 每个变量都包含了详细的说明，以帮助用户正确配置模块
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# ------------------------------------------------------------------------------
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# 数据库账号名称
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variable "rds_db_user" {
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type = string
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default = "user_test"
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validation {
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condition = can(regex("^[a-z][a-z0-9_]{0,31}$", var.rds_db_user))
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error_message = "由 2 到 32 个小写字母组成，支持小写字母、数字和下划线，以小写字母开头"
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}
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description = "数据库账号"
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}
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# MySQL数据库密码
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variable "db_password" {
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type = string
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sensitive = true
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#default = ""
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description = "MySQL数据库密码"
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validation {
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condition = can(regex("^[0-9A-Za-z_!@#$%^&*()_+\\-=\\+]+$", var.db_password)) && length(var.db_password) >= 8 && length(var.db_password) <= 30
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error_message = "长度8-30，必须包含三项（大写字母、小写字母、数字、 !@#$%^&*()_+-=中的特殊符号）"
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}
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}

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