Connect Azure Cache for Redis to your application in Azure Spring Apps

1. Add the following dependency to your project's pom.xml file:

   <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-data-redis-reactive</artifactId>
   </dependency>
   

2. Remove any spring.redis.* properties from the application.properties file

3. Update the current deployment using az spring app update or create a new deployment using az spring app deployment create.

Connect your app to the Azure Cache for Redis

The following Terraform script shows how to set up an Azure Spring Apps 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 = "China North 2"
}

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
  quota {
    cpu    = "2"
    memory = "4Gi"
  }
  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
}