Essential AWS Fargate Interview Q&A: 10 Key Questions Explained

Here are the top 10 AWS Fargate interview questions and their answers:

1. What is AWS Fargate?
   Answer: AWS Fargate is a serverless compute engine for containers that allows you to run Docker containers without managing the underlying infrastructure. It abstracts away the need to provision and manage servers, enabling you to focus on running your applications.

2. How does AWS Fargate differ from Amazon EC2?
   Answer: Unlike Amazon EC2, which requires you to provision and manage the underlying infrastructure, AWS Fargate abstracts away the infrastructure layer. With Fargate, you only need to define your containers and their resource requirements, and AWS takes care of launching and scaling them.

3. How does scaling work in AWS Fargate?
   Answer: AWS Fargate provides automatic scaling based on the resource requirements defined for your containers. You can specify CPU and memory limits for each container, and Fargate automatically scales the underlying infrastructure to accommodate the resource needs of your containers.

4. What are the key components of AWS Fargate?
   Answer: The key components of AWS Fargate include task definitions, tasks, services, and clusters. Task definitions define the containers and their configurations, tasks represent the running instances of those containers, services manage the desired state of tasks, and clusters provide the logical grouping of tasks.

5. How can you configure networking for AWS Fargate tasks?
   Answer: AWS Fargate tasks can be configured to use Amazon VPC (Virtual Private Cloud). You can specify the subnets, security groups, and other networking parameters for your tasks. Fargate tasks can be assigned public or private IP addresses, and you can control inbound and outbound traffic using security groups.

6. Can you use AWS Fargate with AWS Elastic Load Balancer (ELB)?
   Answer: Yes, you can use AWS Fargate with various load balancer services provided by AWS, including the Application Load Balancer (ALB) and Network Load Balancer (NLB). These load balancers distribute incoming traffic across multiple containers running in Fargate.

7. How can you deploy applications to AWS Fargate?
   Answer: To deploy applications to AWS Fargate, you need to define a task definition that specifies your container image, resource requirements, and other configurations. You can then create a service that uses the task definition and specifies the desired number of tasks to run. AWS Fargate automatically handles the deployment and scaling of your containers.

8. How does AWS Fargate handle container storage?
   Answer: AWS Fargate supports persistent storage for containers using Amazon Elastic File System (EFS) or Amazon Elastic Block Store (EBS). You can mount EFS file systems or attach EBS volumes to your containers to provide durable and scalable storage.

9. Can you update running tasks in AWS Fargate?
   Answer: Yes, you can update running tasks in AWS Fargate by creating a new task definition with the desired changes, and then updating the service to use the new task definition. AWS Fargate automatically handles the deployment of the updated tasks while maintaining the desired task count.

10. How does AWS Fargate pricing work?
    Answer: AWS Fargate pricing is based on the vCPU and memory resources consumed by your containers. You pay for the resources allocated to your tasks, as well as any additional services used, such as load balancers or storage. The pricing details can be found on the AWS website and vary depending on the region and instance type used.

Remember to tailor your answers based on your specific experience and understanding of AWS Fargate. Good luck with your interview!