Hello, Freakin world!

docker-compose.yml version: "3.0" services: zk1: image: zookeeper:3.5 restart: always hostname: zk1 ports: - 2181:2181 environment: ZOO_MY_ID: 1 ZOO_SERVERS: server.1=zk1:2888:3888;2181 server.2=zk2:2888:3888;2181 server.3=zk3:2888:3888;2181 volumes: - "~/zk-cluster/zk1/data:/data" zk2: image: zookeeper:3.5 restart: always hostname: zk2 ports: - "2182:2181" environment: ZOO_MY_ID: 2 ZOO_SERVERS:..