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feat: 解决方案migrate-database-to-cloud tf文件完成
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‎solution/tech-solution/mysql-rds/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[自建数据库迁移到云数据库](https://www.aliyun.com/solution/tech-solution/mysql-rds), 涉及到专有网络（VPC）、交换机（VSwitch）、云服务器（ECS）、云数据库（RDS）MySQL版等资源的部署。
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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 [Migrate Self-Built Database to Cloud Database](https://www.aliyun.com/solution/tech-solution/mysql-rds), which involves the creation and deployment of resources such as Virtual Private Cloud (VPC), VSwitch, Elastic Compute Service (ECS), ApsaraDB 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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## 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_database.wordpress_db](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/db_database) | resource |
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| [alicloud_db_instance.database](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/db_instance) | resource |
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| [alicloud_ecs_command.wordpress_install_command](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/ecs_command) | resource |
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| [alicloud_ecs_invocation.wordpress_install_invocation](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/ecs_invocation) | resource |
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| [alicloud_instance.web_server](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/instance) | resource |
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| [alicloud_rds_account.db_user](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/rds_account) | 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_security_group_rule.security_group_ingress](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/security_group_rule) | 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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| [alicloud_db_instance_classes.default](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/data-sources/db_instance_classes) | data source |
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| [alicloud_db_zones.default](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/data-sources/db_zones) | data source |
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| [alicloud_images.instance_image](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/data-sources/images) | data source |
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| [alicloud_instance_types.default](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/data-sources/instance_types) | 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_instance_engine_and_version"></a> [db\_instance\_engine\_and\_version](#input\_db\_instance\_engine\_and\_version) | 引擎类型及版本，数据库引擎类型及版本，默认为MySQL 8.0。 | `string` | `"MySQL 8.0"` | no |
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| <a name="input_db_password"></a> [db\_password](#input\_db\_password) | RDS数据库密码，长度8-30，必须包含三项（大写字母、小写字母、数字、特殊符号）。 | `string` | n/a | yes |
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| <a name="input_db_user_name"></a> [db\_user\_name](#input\_db\_user\_name) | RDS数据库账号，由2到16个小写字母组成，下划线。必须以字母开头，以字母数字字符结尾。 | `string` | `"dbuser"` | no |
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| <a name="input_ecs_instance_password"></a> [ecs\_instance\_password](#input\_ecs\_instance\_password) | 实例密码，服务器登录密码，长度8-30，必须包含三项（大写字母、小写字母、数字、特殊符号）。 | `string` | n/a | yes |
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| <a name="input_region"></a> [region](#input\_region) | 地域 | `string` | `"cn-hangzhou"` | no |
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<!-- END_TF_DOCS -->

‎solution/tech-solution/mysql-rds/main.tf‎

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data "alicloud_db_zones" "default" {
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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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# 查询实例实例规格
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data "alicloud_instance_types" "default" {
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availability_zone = data.alicloud_db_zones.default.zones.0.id
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system_disk_category = "cloud_essd"
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}
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data "alicloud_db_instance_classes" "default" {
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zone_id = data.alicloud_db_zones.default.zones.0.id
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engine = "MySQL"
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engine_version = "8.0"
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category = "Basic"
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instance_charge_type = "PostPaid"
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db_instance_storage_type = "cloud_essd"
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}
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# VPC
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resource "alicloud_vpc" "vpc" {
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vpc_name = "database-migration-test"
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cidr_block = "192.168.0.0/16"
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}
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# VSwitch
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resource "alicloud_vswitch" "vswitch" {
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vpc_id = alicloud_vpc.vpc.id
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cidr_block = "192.168.0.0/24"
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zone_id = data.alicloud_db_zones.default.zones.0.id
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vswitch_name = "database-migration-vswitch"
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}
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# Security Group
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resource "alicloud_security_group" "security_group" {
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security_group_name = "SG-DTS-GROUP-20220101"
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vpc_id = alicloud_vpc.vpc.id
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}
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# Security Group Rule - Allow all traffic
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resource "alicloud_security_group_rule" "security_group_ingress" {
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security_group_id = alicloud_security_group.security_group.id
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type = "ingress"
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ip_protocol = "all"
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port_range = "-1/-1"
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cidr_ip = "0.0.0.0/0"
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}
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# Data source for ECS image
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data "alicloud_images" "instance_image" {
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name_regex = "^aliyun_3_x64_20G_alibase_*"
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most_recent = true
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owners = "system"
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instance_type = data.alicloud_instance_types.default.instance_types[0].id
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}
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# ECS Instance (WebServer)
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resource "alicloud_instance" "web_server" {
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instance_name = "database-migration-webserver"
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image_id = data.alicloud_images.instance_image.images[0].id
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instance_type = data.alicloud_instance_types.default.instance_types[0].id
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security_groups = [alicloud_security_group.security_group.id]
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vswitch_id = alicloud_vswitch.vswitch.id
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system_disk_category = "cloud_essd"
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internet_max_bandwidth_out = 80
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password = var.ecs_instance_password
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instance_charge_type = "PostPaid"
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}
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# RDS Instance (Database)
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resource "alicloud_db_instance" "database" {
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engine = "MySQL"
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engine_version = "8.0"
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instance_type = data.alicloud_db_instance_classes.default.instance_classes.0.instance_class
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instance_storage = 20
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vpc_id = alicloud_vpc.vpc.id
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vswitch_id = alicloud_vswitch.vswitch.id
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security_group_ids = [alicloud_security_group.security_group.id]
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security_ips = [alicloud_instance.web_server.private_ip]
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zone_id = data.alicloud_db_zones.default.zones.0.id
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instance_charge_type = "Postpaid"
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category = "Basic"
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}
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# RDS Database
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resource "alicloud_db_database" "wordpress_db" {
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instance_id = alicloud_db_instance.database.id
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name = "wordpressdb"
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character_set = "utf8mb4"
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description = "WordPress database for migration test"
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}
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# RDS Account
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resource "alicloud_rds_account" "db_user" {
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db_instance_id = alicloud_db_instance.database.id
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account_name = var.db_user_name
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account_password = var.db_password
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account_type = "Super"
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account_description = "Database user for WordPress"
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}
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# Local script for WordPress installation
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locals {
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wordpress_install_script = <<-SHELL
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#!/bin/sh
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DatabaseUser='wordpressuser'
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DatabasePwd='password'
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DatabaseName='wordpressdb'
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DatabaseHost='localhost'
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yum update -y
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yum install -y unzip zip
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yum install -y mysql-server
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systemctl start mysqld
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systemctl enable mysqld
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mysql -e "CREATE DATABASE wordpressdb;"
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mysql -e "CREATE USER 'wordpressuser'@'localhost' IDENTIFIED BY 'password';"
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mysql -e "GRANT ALL PRIVILEGES ON wordpressdb.* TO 'wordpressuser'@'localhost';"
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mysql -e "FLUSH PRIVILEGES;"
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mysql -e "CREATE USER dtssync1 IDENTIFIED BY 'P@ssw0rd';"
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mysql -e "GRANT ALL ON *.* TO 'dtssync1'@'%';"
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mysql -e "FLUSH PRIVILEGES;"
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mysql -e "SET GLOBAL binlog_format = 'ROW';"
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yum install -y nginx
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systemctl start nginx
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systemctl enable nginx
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yum install -y php php-fpm php-mysqlnd
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systemctl start php-fpm
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systemctl enable php-fpm
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cd /usr/share/nginx/html
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wget https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20240726/hhvpuw/wordpress-6.6.1.tar
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tar -xvf wordpress-6.6.1.tar
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cp -R wordpress/* .
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rm -R wordpress
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cp wp-config-sample.php wp-config.php
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sed -i "s/database_name_here/$DatabaseName/" wp-config.php
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sed -i "s/username_here/$DatabaseUser/" wp-config.php
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sed -i "s/password_here/$DatabasePwd/" wp-config.php
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sed -i "s/localhost/$DatabaseHost/" wp-config.php
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systemctl restart nginx
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systemctl restart php-fpm
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SHELL
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}
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# ECS Command for WordPress installation
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resource "alicloud_ecs_command" "wordpress_install_command" {
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name = "wordpress-install-command"
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description = "Install WordPress and MySQL on ECS instance"
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enable_parameter = false
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type = "RunShellScript"
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command_content = base64encode(local.wordpress_install_script)
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timeout = 3600
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working_dir = "/root"
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}
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# Execute command on ECS instance
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resource "alicloud_ecs_invocation" "wordpress_install_invocation" {
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instance_id = [alicloud_instance.web_server.id]
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command_id = alicloud_ecs_command.wordpress_install_command.id
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depends_on = [
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alicloud_security_group_rule.security_group_ingress
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]
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timeouts {
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create = "60m"
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}
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}

‎solution/tech-solution/mysql-rds/outputs.tf‎

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# ECS Instance Login Information
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output "ecs_instance_user" {
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description = "Username and password for logging in to ECS instance"
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value = "USERNAME: root ; PASSWORD: ${var.ecs_instance_password}"
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sensitive = true
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}
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# WordPress URL
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output "ecs_word_press_url" {
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description = "WordPress default address"
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value = "http://${alicloud_instance.web_server.public_ip}"
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}
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# RDS Internal Connection Address
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output "rds_internal_address" {
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description = "RDS internal network address"
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value = alicloud_db_instance.database.connection_string
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}
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# RDS User Information for DTS
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output "rds_user_dts" {
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description = "RDS username and password for connecting to DTS"
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value = "USERNAME: ${var.db_user_name} PASSWORD: ${var.db_password}"
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sensitive = true
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}
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# WordPress Database User for DTS
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output "wp_user_for_dts" {
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description = "ECS-hosted database username and password for connecting to DTS"
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value = "USERNAME: dtssync1 ; PASSWORD: P@ssw0rd"
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sensitive = true
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}
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# WordPress Database User for SQL
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output "wp_user_for_sql" {
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description = "ECS-hosted database username and password for executing SQL"
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value = "USERNAME: wordpressuser ; PASSWORD: password"
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sensitive = true
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}

‎solution/tech-solution/mysql-rds/provider.tf‎

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provider "alicloud" {
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region = var.region
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}

‎solution/tech-solution/mysql-rds/variables.tf‎

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variable "region" {
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description = "地域"
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type = string
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default = "cn-hangzhou"
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}
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variable "db_instance_engine_and_version" {
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type = string
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description = "引擎类型及版本，数据库引擎类型及版本，默认为MySQL 8.0。"
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validation {
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condition = contains(["MySQL 8.0"], var.db_instance_engine_and_version)
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error_message = "数据库引擎类型及版本必须为MySQL 8.0。"
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}
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default = "MySQL 8.0"
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}
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variable "db_password" {
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type = string
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description = "RDS数据库密码，长度8-30，必须包含三项（大写字母、小写字母、数字、特殊符号）。"
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sensitive = true
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validation {
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condition = length(var.db_password) >= 8 && length(var.db_password) <= 30
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error_message = "密码长度必须在8-30之间。"
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}
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}
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variable "db_user_name" {
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type = string
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description = "RDS数据库账号，由2到16个小写字母组成，下划线。必须以字母开头，以字母数字字符结尾。"
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validation {
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condition = can(regex("^[a-z][a-z0-9_]{0,14}[a-z0-9]$", var.db_user_name)) && length(var.db_user_name) >= 2 && length(var.db_user_name) <= 16
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error_message = "由2到16个小写字母组成，下划线。必须以字母开头，以字母数字字符结尾。"
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}
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default = "dbuser"
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}
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variable "ecs_instance_password" {
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type = string
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description = "实例密码，服务器登录密码，长度8-30，必须包含三项（大写字母、小写字母、数字、特殊符号）。"
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sensitive = true
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validation {
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condition = length(var.ecs_instance_password) >= 8 && length(var.ecs_instance_password) <= 30
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error_message = "密码长度必须在8-30之间。"
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}
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}

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