AWS Cloud Map lab

 AWS Cloud Map is a scalable service that provides DNS-based service discovery for microservices applications. It allows services to automatically register and discover each other, making it easier to build resilient and scalable applications.

1. Prerequisites

• An AWS account
• A deployed microservices application

2. Create a Service Discovery Namespace

• Navigate to Cloud Map:
  In the AWS Management Console, search for "Cloud Map" and select the service.
• Create a namespace: Click on "Create namespace".
• Provide details: Give your namespace a name and description.
• Choose a namespace type: Select "DNS" for DNS-based service discovery.
• Create the namespace: Click "Create namespace".

creating a namespace in AWS Cloud Map

3. Create a Service

• Select your namespace: Click on the namespace you just created.
• Create a service: Click on "Create service".
• Provide details: Give your service a name and description.
• Choose a service type: Select the appropriate service type (e.g., "HTTP").
• Configure settings: Specify the service discovery settings, such as the DNS record type and the port on which the service is listening.
• Create the service: Click "Create service".

creating a service in AWS Cloud Map

4. Register Instances

• Select your service: Click on the service you just created.
• Register instances: Click on "Register instances".
• Provide details: Specify the instance IDs or IP addresses of the instances that belong to your service.
• Register instances: Click "Register instances".

registering instances in AWS Cloud Map

5. Test Service Discovery

• Use the service name: Use the DNS name of your service to discover instances.
• Example: If your service name is "my-service", you can use the DNS name my-service.<your-namespace>.local to discover instances.

Additional Steps

• Create custom health checks: Configure custom health checks to ensure that only healthy instances are registered.
• Integrate with other AWS services: Cloud Map can be integrated with other AWS services like AWS ECS and AWS Lambda.
• Use Cloud Map API: Access Cloud Map features programmatically using the AWS SDKs or the Cloud Map API.