ECS is very very similar to Kubernetes and duplicates pretty much all of the functionality except AWS names and manages each piece as a separate service/offerin

ECS is very very similar to Kubernetes and duplicates pretty much all of the functionality except AWS names and manages each piece as a separate service/offering. ECS+Route53+ALB/ELB+EFS+Parameter Store+Secrets Manager+CloudWatch (Metrics, Logs, Events)+VPC+IAM/STS and you're pretty close in functionality.