Amazon ECS

• AWS-managed container orchestration service for deploying, managing, and scaling Docker containers.

• Runs containers on:
• EC2 Launch Type – You manage the underlying EC2 instances in the cluster.
• Fargate Launch Type – Serverless mode where AWS manages the infrastructure; you only define CPU, memory, and networking.

Key Features

• Task Definitions – Blueprint that describes containers, images, CPU/memory requirements, environment variables, and networking.

• Services – Ensure the desired number of tasks are always running, optionally behind a load balancer.

• Cluster Management – Logical grouping of tasks or services, either on EC2 or Fargate.

• Auto Scaling – Adjusts the number of tasks based on demand.

• Integration – Works with ALB/NLB, IAM, CloudWatch, ECR, and AWS VPC networking.

Use Cases

• Running microservices in production.

• Batch processing workloads.

• Migrating from on-premises Docker to AWS.