Amazon Elastic Container Services (Amazon ECS) customers have several solutions for service-to-service, but each one comes with some challenges and complications:
1) Elastic Load Balancing (ELB) needs to carefully plan for configuring infrastructure for high availability and incur additional infrastructure cost.
2) Using Amazon ECS Service Discovery often requires developers to write custom application code for collecting traffic metrics and for making network calls resilient.
3) Service mesh solutions such as AWS App Mesh run outside of Amazon ECS despite having advanced traffic monitoring and routing features between services.
Getting Started with Amazon ECS Service Connect
To get started with the ECS Service Connect, you can specify a namespace as part of creating an ECS cluster or create one in the Cloud Map. A namespace represents a way to structure your services and can span across multiple ECS clusters residing in different VPCs. All ECS services that belong to a specific namespace can communicate with existing services in the namespaces, provided existing network-level connectivity.
You can also see a list of Cloud Map namespaces in Namespaces in the left navigation pane of the Amazon ECS console. When you select a namespace, it shows a list of services with the same namespace from two different ECS clusters with database services (db-mysql, db-redis) and backend services (webui, appserver).
When you create an ECS cluster, you can select one of the namespaces in the Default namespaces of the Networking setting. ECS Service Connect is enabled for all new ECS services running in both AWS Fargate and Amazon EC2 instances. To enable all existing services, you would need to redeploy with either a new version of ECS-optimized Amazon Machine Image (AMI), or with a new Fargate Agent that supports ECS Service Connect.
More details- ECS service connect
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