Caching Data to Azure Cache for Redis with PasswordLess in Spring Boot Application
This code sample demonstrates how to use passwordless connections to cache data in Azure Cache for Redis using the Spring Cloud Azure Starter Data Redis lettuce.
What You Will Build
You will build an application using the Spring Cloud Azure Starter Data Redis lettuce and Spring Boot Starter Data Redis to cache data to Azure Cache for Redis with passwordless.
What You Need
- An Azure subscription
- Terraform
- Azure CLI
- JDK8 or later
- Maven
- cURL or a similar HTTP utility to test functionality.
- You can also import the code straight into your IDE:
Provision Azure Resources Required to Run This Sample
This sample will create Azure resources using Terraform.
Authenticate Using the Azure CLI
Terraform must authenticate to Azure to create infrastructure.
In your terminal, use the Azure CLI tool to setup your account permissions locally.
az login
Your browser window will open and you will be prompted to enter your Azure login credentials. After successful authentication, your terminal will display your subscription information. You do not need to save this output as it is saved in your system for Terraform to use.
You have logged in. Now let us find all the subscriptions to which you have access...
[
{
"cloudName": "AzureCloud",
"homeTenantId": "home-Tenant-Id",
"id": "subscription-id",
"isDefault": true,
"managedByTenants": [],
"name": "Subscription-Name",
"state": "Enabled",
"tenantId": "0envbwi39-TenantId",
"user": {
"name": "your-username@domain.com",
"type": "user"
}
}
]
If you have more than one subscription, specify the subscription-id you want to use with command below:
az account set --subscription <your-subscription-id>
Provision the Resources
After login Azure CLI with your account, now you can use the terraform script to create Azure Resources.
Now you can use the terraform script to create Azure Resources.
Run with Bash
# In the root directory of the sample
# Initialize your Terraform configuration
terraform -chdir=./terraform init
# Apply your Terraform Configuration
terraform -chdir=./terraform apply -auto-approve
Run with Powershell
# In the root directory of the sample
# Initialize your Terraform configuration
terraform -chdir=terraform init
# Apply your Terraform Configuration
terraform -chdir=terraform apply -auto-approve
It may take around 15 minutes to run the script. After successful running, you will see prompt information like below:
azurecaf_name.resource_group: Creating...
azurecaf_name.azurecaf_name_redis: Creating...
azurecaf_name.azurecaf_name_redis: Creation complete after 0s ...
azurerm_redis_cache.redis: Still creating...
azurerm_redis_cache.redis: Still creating...
azurerm_redis_cache.redis: Creation complete after ...
Apply complete! Resources: 4 added, 0 changed, 0 destroyed.
Outputs:
...
You can go to Azure portal in your web browser to check the resources you created.
Enable Microsoft Entra ID authentication on your cache
Refer to Enable Microsoft Entra ID authentication on your cache for more information.
Export Output to Your Local Environment
Running the command below to export environment values:
Run with Bash
source ./terraform/setup_env.sh
Run with Powershell
terraform\setup_env.ps1
If you want to run the sample in debug mode, you can save the output value.
AZURE_CACHE_REDIS_HOST=...
AZURE_CACHE_REDIS_USERNAME=...
Run Locally
Run the sample with Maven
In your terminal, run mvn clean spring-boot:run
.
mvn clean spring-boot:run
Run the sample in IDEs
You can debug your sample by adding the saved output values to the tool's environment variables or the sample's application.yaml
file.
If your tool is
IDEA
, please refer to Debug your first Java application and add environment variables.If your tool is
ECLIPSE
, please refer to Debugging the Eclipse IDE for Java Developers and Eclipse Environment Variable Setup.
Verify This Sample
- Send a GET request to check, where
name
could be any string:
curl -XGET http://localhost:8080/{name}
- Confirm from Azure Redis Cache console in Azure Portal:
keys *
Clean Up Resources
After running the sample, if you don't want to run the sample, remember to destroy the Azure resources you created to avoid unnecessary billing.
The terraform destroy command terminates resources managed by your Terraform project.
To destroy the resources you created.
Run with Bash
terraform -chdir=./terraform destroy -auto-approve
Run with Powershell
terraform -chdir=terraform destroy -auto-approve
Deploy to Azure Spring Apps
Now that you have the Spring Boot application running locally, it's time to move it to production. Azure Spring Apps makes it easy to deploy Spring Boot applications to Azure without any code changes. The service manages the infrastructure of Spring applications so developers can focus on their code. Azure Spring Apps provides lifecycle management using comprehensive monitoring and diagnostics, configuration management, service discovery, CI/CD integration, blue-green deployments, and more. To deploy your application to Azure Spring Apps, see Deploy your first application to Azure Spring Apps.