CentOS 安装及使用 terraform 最新教程

一. 官网下载安装包
二. 解压到 /usr/local/bin目录
三. 检查terraform是否安装成功
四. 测试百度云-对象存储
  4.1 创建目录
  4.2 进入 terraform-test 目录。
  4.3 创建配置文件。
  4.4 初始化工作目录
  4.5 Terraform 管理 BOS
  4.6 Terraform 创建 BOS
  4.7 Terraform 删除 BOS

一. 官网下载安装包

安装文档 hashicorp给出的安装文档

文档中包含下载地址，选择CentOS 的安装包点击下载，格式为.zip

下载地址：https://www.terraform.io/downloads.html

安装包链接：https://releases.hashicorp.com/terraform/0.12.28/terraform_0.12.28_linux_amd64.zip

二. 解压到 /usr/local/bin目录

下载完成后将 .zip解压到 /usr/local/bin 目录下，方便下一步配置PATH变量。解压后的 terraform是一个 binary 可执行文件，如图所示

解压命令：

~$ unzip terraform_0.12.28_linux_amd64.zip -d /usr/local/bin/
~$ cd /usr/bin
~$ sudo ln -s /usr/local/bin/terraform
~$ source ~/.bash_profile

三. 检查terraform是否安装成功

直接在terminal中输入terraform，如果上一步的PATH配置成功，terminal会提示以下信息

四. 测试百度云-对象存储

因为每个 Terraform 项目都需要创建 1 个独立的工作目录，所以先创建一个测试目录 terraform-test。

4.1 创建目录

[root@test bin]#mkdir terraform-test

4.2 进入 terraform-test 目录。

[root@test bin]#cd terraform-test
[root@test terraform-test]#

4.3 创建配置文件。

Terraform 在运行时，会读取该目录空间下所有 *.tf 和 *.tfvars 文件。因此，您可以按照实际用途将配置信息写入到不同的文件中。下面列出几个常用的配置文件：

provider.tf           -- provider 配置
terraform.tfvars      -- 配置 provider 要用到的变量
varable.tf            -- 通用变量
resource.tf           -- 资源定义
data.tf               -- 包文件定义
output.tf             -- 输出

例如：创建 provider.tf 文件时，您可按以下格式配置您的身份认证信息：

[root@test terraform-test]# vim main.tf
provider "baiducloud" {access_key  = "LTA*****************NO2"secret_key  = "MOk8x0*************wwff"region           = "bj"
}

4.4 初始化工作目录

[root@test terraform-test]#terraform initInitializing provider plugins...
- Checking for available provider plugins on https://releases.hashicorp.com...
- Downloading plugin for provider "alicloud" (1.25.0)...

4.5 Terraform 管理 BOS

terraform plan：预览功能，允许在正式执行配置文件之前，查看将要执行哪些操作。

例如，您添加了创建 Bucket 的配置文件 test.tf ：

[root@test terraform-test]#vim main.tf
provider "baiducloud" {access_key  = "LTA*****************NO2"secret_key  = "MOk8x0*************wwff"region           = "bj"
}# 创建源 bucket
resource "baiducloud_bos_bucket" "source" {bucket = "charlietang"acl    = "public-read-write"
}

使用 terraform plan 可查看到将会执行的操作。

[root@test terraform-test]# terraform plan
Refreshing Terraform state in-memory prior to plan...
The refreshed state will be used to calculate this plan, but will not be
persisted to local or remote state storage.------------------------------------------------------------------------An execution plan has been generated and is shown below.
Resource actions are indicated with the following symbols:+ createTerraform will perform the following actions:# baiducloud_bos_bucket.tangdd will be created+ resource "baiducloud_bos_bucket" "tangdd" {+ acl                         = "public-read-write"+ bucket                      = "charlietang1"+ creation_date               = (known after apply)+ force_destroy               = false+ id                          = (known after apply)+ location                    = (known after apply)+ owner_id                    = (known after apply)+ owner_name                  = (known after apply)+ server_side_encryption_rule = (known after apply)+ storage_class               = "STANDARD"}Plan: 1 to add, 0 to change, 0 to destroy.------------------------------------------------------------------------Note: You didn't specify an "-out" parameter to save this plan, so Terraform
can't guarantee that exactly these actions will be performed if
"terraform apply" is subsequently run.

4.6 Terraform 创建 BOS

terraform apply：执行工作目录中的配置文件。

例如您想创建名为 charlietang 的 Bucket，您需要先添加创建 Bucket 的配置文件 main.tf。

[root@localhost baidu-cloud]# terraform applyAn execution plan has been generated and is shown below.
Resource actions are indicated with the following symbols:+ createTerraform will perform the following actions:# baiducloud_bos_bucket.tangdd will be created+ resource "baiducloud_bos_bucket" "tangdd" {+ acl                         = "public-read-write"+ bucket                      = "charlietang1"+ creation_date               = (known after apply)+ force_destroy               = false+ id                          = (known after apply)+ location                    = (known after apply)+ owner_id                    = (known after apply)+ owner_name                  = (known after apply)+ server_side_encryption_rule = (known after apply)+ storage_class               = "STANDARD"}Plan: 1 to add, 0 to change, 0 to destroy.Do you want to perform these actions?Terraform will perform the actions described above.Only 'yes' will be accepted to approve.Enter a value: yesbaiducloud_bos_bucket.tangdd: Creating...
baiducloud_bos_bucket.tangdd: Creation complete after 2s [id=charlietang1]Apply complete! Resources: 1 added, 0 changed, 0 destroyed.

4.7 Terraform 删除 BOS

terraform destroy：可删除通过 Terraform 创建的空 Bucket。

[root@localhost baidu-cloud]# terraform destroy
baiducloud_bos_bucket.tangdd: Refreshing state... [id=charlietang1]An execution plan has been generated and is shown below.
Resource actions are indicated with the following symbols:- destroyTerraform will perform the following actions:# baiducloud_bos_bucket.tangdd will be destroyed- resource "baiducloud_bos_bucket" "tangdd" {- acl                         = "public-read-write" -> null- bucket                      = "charlietang1" -> null- creation_date               = "2020-07-08T06:47:52Z" -> null- force_destroy               = false -> null- id                          = "charlietang1" -> null- location                    = "bj" -> null- owner_id                    = "3b4c0907265d49daa7fbf103bb2cba4a" -> null- owner_name                  = "UC:29883996" -> null- server_side_encryption_rule = "none" -> null- storage_class               = "STANDARD" -> null}Plan: 0 to add, 0 to change, 1 to destroy.Do you really want to destroy all resources?Terraform will destroy all your managed infrastructure, as shown above.There is no undo. Only 'yes' will be accepted to confirm.Enter a value: yesbaiducloud_bos_bucket.tangdd: Destroying... [id=charlietang1]
baiducloud_bos_bucket.tangdd: Destruction complete after 1sDestroy complete! Resources: 1 destroyed.