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Add tongyi-langchain solution with PAI-EAS and Qwen model
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‎solution/tech-solution/tongyi-langchain/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[通义千问和 LangChain 搭建对话服务](https://www.aliyun.com/solution/tech-solution/tongyi-langchain), 涉及到PAI-EAS实例（PAI-EAS）、专有网络（VPC）、交换机（VSwitch）、文件存储（NAS）等资源的创建。
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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 [Building a conversation service with Qwen and LangChain](https://www.aliyun.com/solution/tech-solution/tongyi-langchain), which involves the creation and deployment of resources such as PAI-EAS,Virtual Private Cloud (VPC), VSwitch, File Storage NAS(NAS).
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<!-- DOCS_DESCRIPTION_EN -->
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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_nas_access_group.nas_access_group](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/nas_access_group) | resource |
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| [alicloud_nas_access_rule.nas_access_rule](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/nas_access_rule) | resource |
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| [alicloud_nas_file_system.nas_file_system](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/nas_file_system) | resource |
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| [alicloud_nas_mount_target.nas_mount_target](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/nas_mount_target) | resource |
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| [alicloud_pai_service.pai_eas](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/pai_service) | 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.allow_http](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/security_group_rule) | resource |
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| [alicloud_security_group_rule.allow_https](https://registry.terraform.io/providers/aliyun/alicloud/latest/docs/resources/security_group_rule) | resource |
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| [alicloud_security_group_rule.allow_rdp](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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| [random_string.random_string](https://registry.terraform.io/providers/hashicorp/random/latest/docs/resources/string) | resource |
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| [alicloud_regions.current](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) | PAI-EAS实例规格 | `string` | `"ml.gu7i.c8m30.1-gu30"` | no |
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| <a name="input_region"></a> [region](#input\_region) | 地域，例如：cn-hangzhou。所有地域及可用区请参见文档：https://help.aliyun.com/document_detail/40654.html#09f1dc16b0uke | `string` | `"cn-hangzhou"` | no |
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| <a name="input_zone_id"></a> [zone\_id](#input\_zone\_id) | 可用区ID | `string` | `"cn-hangzhou-f"` | no |
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<!-- END_TF_DOCS -->

‎solution/tech-solution/tongyi-langchain/main.tf

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provider "alicloud" {
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region = var.region
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}
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# 生成随机字符串
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resource "random_string" "random_string" {
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length = 8
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special = false
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upper = false
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numeric = true
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lower = true
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}
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# VPC
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resource "alicloud_vpc" "vpc" {
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cidr_block = "192.168.0.0/16"
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vpc_name = "vpc_qwen_demo"
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}
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# VSwitch
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resource "alicloud_vswitch" "vswitch" {
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zone_id = var.zone_id
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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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vswitch_name = "vswitch_qwen_demo"
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}
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# 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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security_group_name = "sg_qwen_demo"
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security_group_type = "normal"
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}
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# 安全组入站规则 - 80端口
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resource "alicloud_security_group_rule" "allow_http" {
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type = "ingress"
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ip_protocol = "tcp"
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nic_type = "intranet"
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policy = "accept"
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port_range = "80/80"
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priority = 1
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security_group_id = alicloud_security_group.security_group.id
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cidr_ip = "0.0.0.0/0"
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}
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# 安全组入站规则 - 443端口
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resource "alicloud_security_group_rule" "allow_https" {
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type = "ingress"
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ip_protocol = "tcp"
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nic_type = "intranet"
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policy = "accept"
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port_range = "443/443"
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priority = 1
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security_group_id = alicloud_security_group.security_group.id
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cidr_ip = "0.0.0.0/0"
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}
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# 安全组入站规则 - 3389端口
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resource "alicloud_security_group_rule" "allow_rdp" {
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type = "ingress"
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ip_protocol = "tcp"
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nic_type = "intranet"
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policy = "accept"
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port_range = "3389/3389"
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priority = 1
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security_group_id = alicloud_security_group.security_group.id
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cidr_ip = "0.0.0.0/0"
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}
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# NAS文件系统
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resource "alicloud_nas_file_system" "nas_file_system" {
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protocol_type = "NFS"
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file_system_type = "standard"
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storage_type = "Performance"
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zone_id = var.zone_id
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vpc_id = alicloud_vpc.vpc.id
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vswitch_id = alicloud_vswitch.vswitch.id
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description = "NAS文件系统用于Qwen和LangChain对话模型"
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}
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# NAS访问组
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resource "alicloud_nas_access_group" "nas_access_group" {
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access_group_type = "Vpc"
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access_group_name = "nas-access-group-qwen-demo"
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}
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# NAS挂载点
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resource "alicloud_nas_mount_target" "nas_mount_target" {
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vpc_id = alicloud_vpc.vpc.id
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vswitch_id = alicloud_vswitch.vswitch.id
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network_type = "Vpc"
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access_group_name = alicloud_nas_access_group.nas_access_group.access_group_name
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file_system_id = alicloud_nas_file_system.nas_file_system.id
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depends_on = [alicloud_nas_access_rule.nas_access_rule]
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}
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# NAS访问规则
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resource "alicloud_nas_access_rule" "nas_access_rule" {
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source_cidr_ip = "0.0.0.0/0"
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access_group_name = alicloud_nas_access_group.nas_access_group.access_group_name
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}
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# PAI-EAS服务
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resource "alicloud_pai_service" "pai_eas" {
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service_config = jsonencode({
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metadata = {
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name = "qwen_demo_${random_string.random_string.result}"
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instance = 1
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enable_webservice = "true"
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}
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cloud = {
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computing = {
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instance_type = var.instance_type
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}
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}
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containers = [
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{
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image = "eas-registry-vpc.${data.alicloud_regions.current.regions.0.id}.cr.aliyuncs.com/pai-eas/chat-llm-webui:2.1"
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script = "python webui/webui_server.py --port=8000 --model-path=Qwen/Qwen-7B-Chat"
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port = 8000
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}
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]
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})
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timeouts {
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create = "20m"
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}
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}
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# 获取当前区域信息
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data "alicloud_regions" "current" {
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current = true
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}

‎solution/tech-solution/tongyi-langchain/outputs.tf

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output "vpc_id" {
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description = "VPC ID"
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value = alicloud_vpc.vpc.id
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}
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output "vswitch_id" {
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description = "VSwitch ID"
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value = alicloud_vswitch.vswitch.id
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}
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output "security_group_id" {
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description = "安全组ID"
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value = alicloud_security_group.security_group.id
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}
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output "nas_file_system_id" {
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description = "NAS文件系统ID"
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value = alicloud_nas_file_system.nas_file_system.id
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}
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output "nas_mount_target_domain" {
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description = "NAS挂载点域名"
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value = alicloud_nas_mount_target.nas_mount_target.mount_target_domain
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}
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output "pai_service_id" {
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description = "PAI-EAS服务ID"
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value = alicloud_pai_service.pai_eas.id
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}
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output "service_name" {
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description = "PAI-EAS服务名称"
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value = "qwen_demo_${random_string.random_string.result}"
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}
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output "service_status" {
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description = "PAI-EAS服务状态"
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value = alicloud_pai_service.pai_eas.status
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}
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output "create_time" {
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description = "PAI-EAS服务创建时间"
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value = alicloud_pai_service.pai_eas.create_time
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}
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output "region_id" {
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description = "部署区域ID"
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value = data.alicloud_regions.current.regions.0.id
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}

‎solution/tech-solution/tongyi-langchain/variables.tf

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variable "region" {
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type = string
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default = "cn-hangzhou"
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description = "地域，例如：cn-hangzhou。所有地域及可用区请参见文档：https://help.aliyun.com/document_detail/40654.html#09f1dc16b0uke"
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}
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variable "zone_id" {
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type = string
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description = "可用区ID"
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default = "cn-hangzhou-f"
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}
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variable "instance_type" {
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type = string
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description = "PAI-EAS实例规格"
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default = "ml.gu7i.c8m30.1-gu30"
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validation {
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condition = contains([
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"ml.gu7i.c8m30.1-gu30",
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"ecs.gn6e-c12g1.3xlarge",
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"ecs.gn7i-c8g1.2xlarge",
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"ecs.gn6i-c16g1.4xlarge",
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"ecs.gn7i-c16g1.4xlarge",
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"ecs.gn6i-c8g1.2xlarge",
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"ecs.gn6i-c4g1.xlarge"
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], var.instance_type)
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error_message = "实例类型必须是以下之一：ml.gu7i.c8m30.1-gu30, ecs.gn6e-c12g1.3xlarge, ecs.gn7i-c8g1.2xlarge, ecs.gn6i-c16g1.4xlarge, ecs.gn6i-c8g1.2xlarge, ecs.gn6i-c4g1.xlarge"
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}
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}

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