Today will be a great learning for sure. I know many of you may not know about the term "ECS". As you know, 90 Days Of DevOps Challenge is mostly about 'learning new' , let's learn then ;)

What is ECS ?

• ECS (Elastic Container Service) is a fully-managed container orchestration service provided by Amazon Web Services (AWS). It allows you to run and manage Docker containers on a cluster of virtual machines (EC2 instances) without having to manage the underlying infrastructure.

With ECS, you can easily deploy, manage, and scale your containerized applications using the AWS Management Console, the AWS CLI, or the API. ECS supports both "Fargate" and "EC2 launch types", which means you can run your containers on AWS-managed infrastructure or your own EC2 instances.

ECS also integrates with other AWS services, such as Elastic Load Balancing, Auto Scaling, and Amazon VPC, allowing you to build scalable and highly available applications. Additionally, ECS has support for Docker Compose and Kubernetes, making it easy to adopt existing container workflows.

Overall, ECS is a powerful and flexible container orchestration service that can help simplify the deployment and management of containerized applications in AWS.

Difference between EKS and ECS ?

• EKS (Elastic Kubernetes Service) and ECS (Elastic Container Service) are both container orchestration platforms provided by Amazon Web Services (AWS). While both platforms allow you to run containerized applications in the AWS cloud, there are some differences between the two.

Architecture: ECS is based on a centralized architecture, where there is a control plane that manages the scheduling of containers on EC2 instances. On the other hand, EKS is based on a distributed architecture, where the Kubernetes control plane is distributed across multiple EC2 instances.

Kubernetes Support: EKS is a fully managed Kubernetes service, meaning that it supports Kubernetes natively and allows you to run your Kubernetes workloads on AWS without having to manage the Kubernetes control plane. ECS, on the other hand, has its own orchestration engine and does not support Kubernetes natively.

Scaling: EKS is designed to automatically scale your Kubernetes cluster based on demand, whereas ECS requires you to configure scaling policies for your tasks and services.

Flexibility: EKS provides more flexibility than ECS in terms of container orchestration, as it allows you to customize and configure Kubernetes to meet your specific requirements. ECS is more restrictive in terms of the options available for container orchestration.

Community: Kubernetes has a large and active open-source community, which means that EKS benefits from a wide range of community-driven development and support. ECS, on the other hand, has a smaller community and is largely driven by AWS itself.

In summary, EKS is a good choice if you want to use Kubernetes to manage your containerized workloads on AWS, while ECS is a good choice if you want a simpler, more managed platform for running your containerized applications.

Task :

Set up ECS (Elastic Container Service) by setting up Nginx on ECS.

Setting up Nginx on Amazon ECS (Elastic Container Service) involves several steps. Here's a step-by-step guide to help you set it up:

1. Create a Docker Image for Nginx:

   • Write a Dockerfile for Nginx.

   • Build the Docker image locally.

   • Push the Docker image to a container registry such as Amazon ECR (Elastic Container Registry).

2. Create an ECS Task Definition:

   • Log in to the AWS Management Console.

   • Go to the ECS dashboard.

   • Click on "Task Definitions" and then "Create new Task Definition".

   • Select "Fargate" or "EC2" launch type depending on your preference.

   • Configure the task definition with the necessary parameters including:

     • Task memory and CPU requirements.

     • Container definitions: Specify the Nginx Docker image and any required port mappings.

     • Task execution IAM role.

   • Review and create the task definition.

3. Create an ECS Cluster:

   • If you don't have an existing ECS cluster, create one.

   • Choose "Fargate" or "EC2" cluster depending on your preference.

   • Configure cluster settings such as cluster name, networking, and VPC settings.

4. Create an ECS Service:

   • In the ECS dashboard, click on "Clusters" and select your cluster.

   • Click on "Create" to create a new service.

   • Configure the service:

     • Launch type: Fargate or EC2.

     • Task definition: Choose the task definition created earlier.

     • Number of tasks.

     • Network settings.

     • Load balancer configuration (if needed).

   • Review and create the service.

5. Access Nginx:

   • If you've configured a load balancer, note down its DNS name or IP address.

   • If not using a load balancer, you may need to access the Nginx container directly using its private IP address.

   • Access Nginx by entering the load balancer DNS name or container IP address in a web browser.

6. (Optional) Configure Auto Scaling:

   • If you expect varying levels of traffic, you can configure auto-scaling for your ECS service to automatically adjust the number of running tasks based on metrics like CPU utilization or request count.

7. Monitoring and Logging:

   • Set up monitoring and logging for your ECS cluster and services using AWS CloudWatch. This allows you to monitor performance metrics and view logs to troubleshoot any issues.

8. Security Considerations:

   • Ensure that your ECS cluster and services are configured with appropriate security settings, including IAM roles, security groups, and network ACLs.

By following these steps, you should be able to set up Nginx on Amazon ECS effectively. Make sure to adjust the configurations according to your specific requirements and preferences.