Is it possible to setup vault in AWS Elasctic Container Registry. If possible can someone explain how?
How do you mean? ECR is for storing Docker images. Do you mean running Vault in ECS (Elastic Container Service) or EKS (Elastic Kubernetes Service)?
Running vault in Elastic Container Service
There shouldn’t be any real difficulty with using ECS. Use the official Docker image. As you are within AWS it may be easiest to use DynamoDB as your backend storage (which is HA) instead of trying to configure raft or deploy separate Consul servers. RDS with MySQL or PostgreSQL could also work fairly well. You would also want to use the KMS auto-unseal to ensure instances startup fully automatically.
Can you elaborate a little more because i am new to this field. Can you provide some links