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    Documentation

    Managing Prometheus Instances Using Terraform

    Last updated: 2023-12-29 16:08:36

      Prerequisites

      Installing Terraform

      For detailed instructions on installing Terraform, see Installing Terraform.
      Note:
      The installed version of Terraform must not be below v1.6.3. You can verify the version of Terraform installed by using the command terraform --version.

      Configuring Tencent Cloud Account Information

      Before using Terraform for the first time, go to API Key to apply for a SecretID and SecretKey of the security credentials. If you already have valid credentials, skip this step.
      1. Log in to the CAM Console and choose Access Key > API Keys from the left sidebar.
      2. On the API Keys page, click Create Key to create a SecretId/SecretKey pair.

      There are two methods for configuring Tencent Cloud account information:

      Authentication by Static Credentials
      Create a provider.tf file in the user directory with the following content. Replace my-secret-id and my-secret-key with your SecretId and SecretKey, respectively.
      provider "tencentcloud" {
        secret_id = "my-secret-id"
        secret_key = "my-secret-key"
      }
      Authentication by Environment Variables
      Configure the computer environment variables or cloud environment variables by running the following command. Replace YOUR_SECRET_ID and YOUR_SECRET_KEY with your SecretId and SecretKey, respectively.
      export TENCENTCLOUD_SECRET_ID=YOUR_SECRET_ID
      export TENCENTCLOUD_SECRET_KEY=YOUR_SECRET_KEY

      Creating Prometheus Instances

      1. Create the configuration file for Terraform. Create a file named main.tf in the project directory and open it with an appropriate editor. Add the Tencent Cloud provider configuration to the main.tf or provider.tf file.
        provider "tencentcloud" {  
          region     = "your_region"  
          secret_id  = "your_secret_id"  
          secret_key = "your_secret_key"
        }
      2. Defining Tencent Cloud Resources: Use the resources provided by Tencent Cloud in the main.tf file to define the resources you want to create and manage.
       #Specifying Provider Configuration Information
       
       terraform {
  required_providers {
    tencentcloud = {
      source = "tencentcloudstack/tencentcloud"
    }
  }
}
      
       #Creating a Prometheus Instance in the Mumbai Region
      
      resource "tencentcloud_monitor_tmp_instance" "foo" {
        instance_name       = "tf-tmp-instance-sjtest"
        vpc_id              = "vpc-0n42dxzs"
        subnet_id           = "subnet-es8rv1kx"
        data_retention_time = 30
        zone                = "ap-mumbai-1"
        tags = {
          "createdBy" = "terraform"
        }
      }
      
      #Creating a Grafana Instance in the Mumbai Region (Optional)
      
      resource "tencentcloud_monitor_grafana_instance" "foo" {
        instance_name         = "tf-grfana-cstest"
        vpc_id                = "vpc-0n42dxzs"
        subnet_ids            = ["subnet-es8rv1kx"]
        grafana_init_password = "1234567890"
        enable_internet       = false
        is_destroy            = true
      
        tags = {
          "createdBy" = "test"
        }
      }
      
      #Binding Grafana and Prometheus Instances (Optional)
      
      resource "tencentcloud_monitor_tmp_manage_grafana_attachment" "foo" {
        grafana_id  = tencentcloud_monitor_grafana_instance.foo.id
        instance_id = tencentcloud_monitor_tmp_instance.foo.id
      }
      3. Initialize the Terraform runtime environment by running the following command:
        terraform init
      Expected output information:
        Initializing the backend...
      
      Initializing provider plugins...
      - Reusing previous version of tencentcloudstack/tencentcloud from the dependency lock file
      - Using previously-installed tencentcloudstack/tencentcloud v1.81.32
      
      Terraform has been successfully initialized!
      
      You may now begin working with Terraform. Try running "terraform plan" to see
      any changes that are required for your infrastructure. All Terraform commands
      should now work.
      
      If you ever set or change modules or backend configuration for Terraform,
      rerun this command to reinitialize your working directory. If you forget, other
      commands will detect it and remind you to do so if necessary.
      4. To generate resource planning, run the following command:
      terraform plan
      Expected output information:
        tencentcloud_vpc.vpc: Refreshing state... [id=vpc-3csjp7k8]
      tencentcloud_monitor_tmp_instance.foo: Refreshing state... [id=prom-4wcvt7p1]
      
      Terraform used the selected providers to generate the following execution plan. Resource actions are indicated with the
      following symbols:
        + create
      
      Terraform will perform the following actions:
      
        # tencentcloud_monitor_tmp_instance.foo will be created
        + resource "tencentcloud_monitor_tmp_instance" "foo" {
            + api_root_path       = (known after apply)
            + data_retention_time = 30
            + id                  = (known after apply)
            + instance_name       = "tf-tmp-instance-sjtest"
            + ipv4_address        = (known after apply)
            + proxy_address       = (known after apply)
            + remote_write        = (known after apply)
            + subnet_id           = "subnet-es8rv1kx"
            + tags                = {
                + "createdBy" = "terraform"
              }
            + vpc_id              = "vpc-0n42dxzs"
            + zone                = "ap-mumbai-1"
          }
      
      Plan: 1 to add, 0 to change, 0 to destroy.
      5. To create an instance, run the following command:
      terraform apply
      Expected output information:
      tencentcloud_vpc.vpc: Refreshing state... [id=vpc-3csjp7k8]
      tencentcloud_monitor_tmp_instance.foo: Refreshing state... [id=prom-4wcvt7p1]
      
      Terraform used the selected providers to generate the following execution plan. Resource actions are indicated with the
      following symbols:
        + create
      
      Terraform will perform the following actions:
      
        # tencentcloud_monitor_tmp_instance.foo will be created
        + resource "tencentcloud_monitor_tmp_instance" "foo" {
            + api_root_path       = (known after apply)
            + data_retention_time = 30
            + id                  = (known after apply)
            + instance_name       = "tf-tmp-instance-sjtest"
            + ipv4_address        = (known after apply)
            + proxy_address       = (known after apply)
            + remote_write        = (known after apply)
            + subnet_id           = "subnet-es8rv1kx"
            + tags                = {
                + "createdBy" = "terraform"
              }
            + vpc_id              = "vpc-0n42dxzs"
            + zone                = "ap-mumbai-1"
          }
      
      Plan: 1 to add, 0 to change, 0 to destroy.
      Enter "yes" to the following information to proceed:
      Do you want to perform these actions?
        Terraform will perform the actions described above.
        Only 'yes' will be accepted to approve.
      
        Enter a value:
      If the following information appear, the creation is successful:
      tencentcloud_monitor_tmp_instance.foo: Creating...
      tencentcloud_monitor_tmp_instance.foo: Still creating... [10s elapsed]
      tencentcloud_monitor_tmp_instance.foo: Creation complete after 12s [id=prom-8dyb6iny]
      
      Apply complete! Resources: 1 added, 0 changed, 0 destroyed.

      Viewing the Status of Prometheus Instances

      Log in to the TCOP, and choose Managed Service for Prometheus from the left-hand navigation bar. Existing instances are displayed in the Prometheus instance list.

      Deleting Prometheus Instances

      To delete a Prometheus instance, run the following command:
      terraform destroy
      If the following information appears, you are prompted to enter "yes" for confirmation:
      tencentcloud_monitor_tmp_instance.foo: Refreshing state... [id=prom-8dyb6iny]
      
      Terraform used the selected providers to generate the following execution plan. Resource actions are indicated with the
      following symbols:
        - destroy
      
      Terraform will perform the following actions:
      
        # tencentcloud_monitor_tmp_instance.foo will be destroyed
        - resource "tencentcloud_monitor_tmp_instance" "foo" {
            - api_root_path       = "http://10.0.0.34:9090/api/v1" -> null
            - data_retention_time = 30 -> null
            - id                  = "prom-8dyb6iny" -> null
            - instance_name       = "tf-tmp-instance-sjtest" -> null
            - ipv4_address        = "10.0.0.34" -> null
            - proxy_address       = "10.0.0.34:9090" -> null
            - remote_write        = "http://10.0.0.34:9090/api/v1/prom/write" -> null
            - subnet_id           = "subnet-es8rv1kx" -> null
            - tags                = {
                - "createdBy" = "terraform"
              } -> null
            - vpc_id              = "vpc-0n42dxzs" -> null
            - zone                = "ap-mumbai-1" -> 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: yes
      
      tencentcloud_monitor_tmp_instance.foo: Destroying... [id=prom-8dyb6iny]
      tencentcloud_monitor_tmp_instance.foo: Destruction complete after 6s
      
      Destroy complete! Resources: 1 destroyed.
      
      Note:
      When Destroy complete! Resources: 1 destroyed. is displayed, the instance has been successfully deleted.
      
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