This repo contains terraform code and docker file which will allow you to create self-healing Apache Zookeeper cluster into AWS ECS
Terraform code can be found in terraform directory, just update variable.tf file with values related to your AWS VPC and execute terraform plan && terraform apply
Dockerfile for building custom Apache Zookeeper image can be found in docker directory. It contains only few custom changes in comparing to the original Apache Zookeeper dockerfile. The main one is generation of myid from ECS service name.
More details about this setup can be found at https://tech.smartling.com/self-healing-apache-zookeeper-cluster-470b248ccb12