###### tags: `AWS Learning Group` # ECS, EKS Introduction ### What is ECS #### ECS - Elastic Container Service - Service that helps with deployment, management of container applications - usually used with Fargate, so no need to worry about handling servers, capacity, security. You only have to focus on the application itself - can also be used with EC2 (manage the underlying server by youself) ### AWS Fargate - serverless - Fargate launch type is usually used in ECS - cluster: a group of services/applications - service: a function/application provided by containers - task definition: define parameters of 1~10 containers that form an application, including OS, which container image to use, internet port, volume limits, load balancing... ![](https://hackmd.io/_uploads/SJQ6KIqEn.png) ### ECS vs EKS? - functions are basically the same: deploy and manage container services without worrying about the underlying infrustructure - Both are powered by AWS EC2, S3, VPC, IAM, cloudformation - ECS uses AWS's own API - EKS supports the open-source Kubernetes service, and supports all Kubernetes APIs ![](https://hackmd.io/_uploads/BJr4uUc4n.png) #### EKS use case - when you need to manage complex, large-scale applications, or if you have the need of migrating to and from different Kubernetes platforms #### ECS use case - when you need a simple and easy solution for deploying and managing applications, or if you need more integration with other AWS services #### Implementations ##### ECS 1. console --> ECS (don't use the new UI) 2. get started 3. define task, service, cluster... 4. create! ##### EKS 1. install eksctl https://github.com/weaveworks/eksctl/blob/main/README.md#installation 2. run ```aws configure``` if your terminal doesn't have your aws account profile 3. ```eksctl create cluster --name test --version 1.23 --region us-east-1 --nodegroup-name test-nodes --node-type t2.micro --nodes 2``` 4. check eks cluster on aws console, or run ```kubectl get nodes``` to see your worker nodes 5. ```eksctl delete cluster --name test``` reference: https://www.missioncloud.com/blog/amazon-ecs-vs-eks-which-service-is-right-for-you https://docs.aws.amazon.com/AmazonECS/latest/userguide/what-is-fargate.html https://www.youtube.com/watch?v=C8Z8XrGTicQ https://aws.amazon.com/tw/ecs/features/ https://www.nops.io/aws-eks-vs-ecs-the-ultimate-guide/ https://www.youtube.com/watch?v=p6xDCz00TxU