AWS Fargate is a serverless compute engine for containers that works with both Amazon Elastic Container Service (ECS) and Amazon Elastic Kubernetes Service (EKS). It allows you to run containers without having to manage the underlying infrastructure. This means you can focus on designing and building your applications instead of managing the servers.

1. Serverless Containers: Fargate eliminates the need to provision and manage servers, allowing you to run containers directly.
2. Integration with ECS and EKS: Fargate works seamlessly with ECS and EKS, providing flexibility in how you manage your containerized applications.
3. Scalability: Automatically scales your applications by launching the right amount of compute resources based on your needs.
4. Security: Provides isolation by running each task or pod in its own kernel, enhancing security.

• An AWS account
• Basic understanding of Docker and containerization
• Familiarity with Amazon ECS or EKS

1. Create a Task Definition:

   • Define the container specifications, including the Docker image, CPU, memory, and networking settings.
   • Example Task Definition JSON:

   {
     "family": "fargate-task",
     "networkMode": "awsvpc",
     "containerDefinitions": [
       {
         "name": "my-container",
         "image": "nginx",
         "cpu": 256,
         "memory": 512,
         "essential": true,
         "portMappings": [
           {
             "containerPort": 80,
             "hostPort": 80
           }
         ]
       }
     ],
     "requiresCompatibilities": ["FARGATE"],
     "cpu": "256",
     "memory": "512"
   }
   

2. Create a Cluster:

   • Use the AWS Management Console, AWS CLI, or SDKs to create an ECS cluster.
   • Example AWS CLI command:

   aws ecs create-cluster --cluster-name my-fargate-cluster
   

3. Run a Task:

   • Launch the task using the task definition and cluster created.
   • Example AWS CLI command:

   aws ecs run-task --cluster my-fargate-cluster --launch-type FARGATE --task-definition fargate-task --network-configuration "awsvpcConfiguration={subnets=[subnet-12345678],securityGroups=[sg-12345678],assignPublicIp=ENABLED}"
   

1. Create an EKS Cluster:

   • Use the AWS Management Console, AWS CLI, or eksctl to create an EKS cluster.
   • Example eksctl command:

   eksctl create cluster --name my-fargate-cluster --region us-west-2
   

2. Create a Fargate Profile:

   • Define which pods should run on Fargate.
   • Example AWS CLI command:

   aws eks create-fargate-profile --cluster-name my-fargate-cluster --fargate-profile-name my-fargate-profile --pod-execution-role-arn arn:aws:iam::123456789012:role/eks-fargate-pod-execution-role --selectors namespace=default
   

3. Deploy a Pod:

   • Deploy a pod to the EKS cluster that matches the Fargate profile.
   • Example Kubernetes manifest:

   apiVersion: v1
   kind: Pod
   metadata:
     name: my-fargate-pod
     namespace: default
   spec:
     containers:
     - name: my-container
       image: nginx
       ports:
       - containerPort: 80
   

1. Create a Task Definition:

   • Use the AWS Management Console to create a task definition for a simple web application using the Nginx image.

2. Create a Cluster:

   • Create an ECS cluster named web-app-cluster.

3. Run the Task:

   • Launch the task in the web-app-cluster with the necessary network configuration.

1. Task Definition:

   • Use the provided JSON example to create a task definition in the AWS Management Console.

2. Cluster Creation:

   • Use the AWS CLI:

   aws ecs create-cluster --cluster-name web-app-cluster
   

3. Run the Task:

   • Use the AWS CLI:

   aws ecs run-task --cluster web-app-cluster --launch-type FARGATE --task-definition fargate-task --network-configuration "awsvpcConfiguration={subnets=[subnet-12345678],securityGroups=[sg-12345678],assignPublicIp=ENABLED}"
   

• Incorrect Task Definition: Ensure that the task definition JSON is correctly formatted and includes all required fields.
• Network Configuration: Make sure the subnets and security groups are correctly configured to allow traffic to and from your containers.
• IAM Roles: Ensure that the necessary IAM roles and policies are in place to allow ECS and Fargate to manage resources on your behalf.

AWS Fargate simplifies the process of running containers by eliminating the need to manage the underlying infrastructure. By integrating with ECS and EKS, it provides a flexible and scalable solution for deploying containerized applications. In this module, you learned how to set up and deploy a simple web application using AWS Fargate with ECS. This knowledge prepares you for more advanced container orchestration and management tasks in AWS.