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Introduction to Terraform

HashiCorp Terraform is an automated orchestration tool for IT infrastructure that allows you to use code to manage and maintain IT resources. Terraform's command line interface (CLI) provides a simple mechanism for deploying and versioning configuration files to Ali Cloud or any other supported cloud. It writes the infrastructure in configuration files that describe the topology of cloud resources, such as virtual machines, storage accounts, and network interfaces.

Terraform is a highly scalable tool that supports new infrastructure through Provider. Terraform allows you to easily define, preview, and deploy cloud infrastructure on Ali Cloud using a simple template language. You can use Terraform to create, modify, and delete ECS, VPC, RDS, SLB, and other resources.

Install and configure Terraform to use Terraform in Cloud Shell

Aliyun Cloud Shell is a free product to help you operate and maintain. It is preinstalled with Terraform components and configured with identity credentials (credentials). So you can run Terraform commands directly from Cloud Shell.

Open a browser and visit the address of Cloud Shell, https://shell.aliyun.com.

Install and configure Terraform locally

Log on to the Terraform website to download and install the package for your operating system.

After the command runs, a list of available Terraform options is displayed, as shown below, indicating that the installation is complete.

Username:~$ terraformUsage: terraform [- version] [- help] [args]

Create environment variables to store authentication information.

Export ALICLOUD_ACCESS_KEY= "LTAIUrZCw3*" export ALICLOUD_SECRET_KEY= "zfwwWAMWIAiooj14GQ2*" export ALICLOUD_REGION= "cn-beijing" write terraform script

Here you choose to use Terraform in Cloud Shell to create related directories:

Mkdir / home/shell/terraform_ecscd / home/shell/terraform_ecs

The terraform script is as follows:

Variable "profile" {default = "default"} # Regionvariable "region" {default = "cn-shanghai"} # copy the public key to locals {user_data_ecs = on ECS

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