Bind Azure Cache for Redis to your application in Azure Spring Cloud

1. Go to your Azure Spring Cloud service page in the Azure portal. Go to Application Dashboard and select the application to bind to Azure Cache for Redis. This application is the same one you updated or deployed in the previous step.

2. Select Service binding and select Create service binding. Fill out the form, being sure to select the Binding type value Azure Cache for Redis, your Azure Cache for Redis server, and the Primary key option.

3. Restart the app. The binding should now work.

4. To ensure the service binding is correct, select the binding name and verify its details. The property field should look like this:

   spring.redis.host=some-redis.redis.cache.windows.net
   spring.redis.port=6380
   spring.redis.password=abc******
   spring.redis.ssl=true
   

The following Terraform script shows how to set up an Azure Spring Cloud app with Azure Cache for Redis.

provider "azurerm" {
  features {}
}

variable "application_name" {
  type        = string
  description = "The name of your application"
  default     = "demo-abc"
}

resource "azurerm_resource_group" "example" {
  name     = "example-resources"
  location = "West Europe"
}

resource "azurerm_redis_cache" "redis" {
  name                = "redis-${var.application_name}-001"
  resource_group_name = azurerm_resource_group.example.name
  location            = azurerm_resource_group.example.location
  capacity            = 0
  family              = "C"
  sku_name            = "Standard"
  enable_non_ssl_port = false
  minimum_tls_version = "1.2"
}

resource "azurerm_spring_cloud_service" "example" {
  name                = "${var.application_name}"
  resource_group_name = azurerm_resource_group.example.name
  location            = azurerm_resource_group.example.location
}

resource "azurerm_spring_cloud_app" "example" {
  name                = "${var.application_name}-app"
  resource_group_name = azurerm_resource_group.example.name
  service_name        = azurerm_spring_cloud_service.example.name
  is_public           = true
  https_only          = true
}

resource "azurerm_spring_cloud_java_deployment" "example" {
  name                = "default"
  spring_cloud_app_id = azurerm_spring_cloud_app.example.id
  cpu                 = 2
  memory_in_gb        = 4
  instance_count      = 2
  jvm_options         = "-XX:+PrintGC"
  runtime_version     = "Java_11"

  environment_variables = {
    "spring.redis.host"     = azurerm_redis_cache.redis.hostname
    "spring.redis.password" = azurerm_redis_cache.redis.primary_access_key
    "spring.redis.port"     = "6380"
    "spring.redis.ssl"      = "true"
  }
}

resource "azurerm_spring_cloud_active_deployment" "example" {
  spring_cloud_app_id = azurerm_spring_cloud_app.example.id
  deployment_name     = azurerm_spring_cloud_java_deployment.example.name
}