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Create virtual endpoints for read replicas with Terraform

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Using Terraform, you can create and manage virtual endpoints for read replicas in Azure Database for PostgreSQL—Flexible Server. Terraform is an open-source infrastructure-as-code tool that allows you to define and provision infrastructure using a high-level configuration language.

Prerequisites

Before you begin, ensure you have the following:

Ensure you have a basic understanding of Terraform syntax and Azure resource provisioning.

Configuring virtual endpoints

Follow these steps to create virtual endpoints for read replicas in Azure Database for PostgreSQL - Flexible Server:

Initialize the Terraform configuration

Create a main.tf file and define the Azure provider.

provider "azurerm" {
  features {}
}

resource "azurerm_resource_group" "example" {
  name     = "example-resources"
  location = "East US"
}

Create the primary Azure Database for PostgreSQL

Define the primary PostgreSQL server resource.

resource "azurerm_postgresql_flexible_server" "primary" {
  name                = "primary-server"
  resource_group_name = azurerm_resource_group.example.name
  location            = azurerm_resource_group.example.location
  version             = "12"
  administrator_login = "adminuser"
  administrator_password = "password"
  sku_name            = "Standard_D4s_v3"

  storage_mb = 32768
  backup_retention_days = 7
  geo_redundant_backup = "Disabled"
  high_availability {
    mode = "ZoneRedundant"
  }
}

Create read replicas

Define the read replicas for the primary server.

resource "azurerm_postgresql_flexible_server" "replica" {
  name                = "replica-server"
  resource_group_name = azurerm_resource_group.example.name
  location            = azurerm_resource_group.example.location
  source_server_id    = azurerm_postgresql_flexible_server.primary.id
}

Configure virtual endpoints

To configure virtual endpoints, define the necessary resources.

resource "azurerm_postgresql_flexible_server_virtual_endpoint" "example" {
  name                = "example-virtual-endpoint"
  resource_group_name = azurerm_resource_group.example.name
  server_name         = azurerm_postgresql_flexible_server.primary.name
}

Apply the configuration

Initialize Terraform and apply the configuration.

terraform init
terraform apply

Confirm the apply action when prompted. Terraform provisions the resources and configures the virtual endpoints as specified.

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