Zookeeper and Kafka cloud-init script

kafka-zookeeper

#cloud-config

coreos:
  etcd2:
    discovery: https://discovery.etcd.io/8085f8fcb83c12f27593b23069533e98
    advertise-client-urls: http://$private_ipv4:2379
    initial-advertise-peer-urls: http://$private_ipv4:2380
    listen-client-urls: http://0.0.0.0:2379
    listen-peer-urls: http://$private_ipv4:2380

  units:
    - name: etcd2.service
      command: start
    - name: fleet.service
      command: start

    - name: pktzoo-01.service
      command: start
      content: |
                [Unit]
                Description=Packet Zookeeper 1
                After=docker.service
                Requires=docker.service
                [Service]
                Type=Simple
                TimeoutStartSec=0
                EnvironmentFile=/etc/environment
                ExecStartPre=-/usr/bin/docker kill pktzoo-01
                ExecStartPre=-/usr/bin/docker rm pktzoo-01
                ExecStartPre=/usr/bin/docker pull mbabineau/zookeeper-exhibitor
                ExecStart=/usr/bin/docker run --name pktzoo-01 -p 8181:8181 -p 2181:2181 -p 2888:2888 -p 3888:3888 -e HOSTNAME=pktzoo-01 mbabineau/zookeeper-exhibitor
                ExecStop=/usr/bin/docker stop pktzoo-01
    - name: pktkafka-01.service
      command: start
      content: |
                [Unit]
                Description=Packet Kafka 1
                After=docker.service pktzoo-01.service
                Requires=docker.service pktzoo-01.service

                [Service]
                Type=Simple
                TimeoutStartSec=0
                EnvironmentFile=/etc/environment
                ExecStartPre=-/usr/bin/docker kill pktkafka-01
                ExecStartPre=-/usr/bin/docker rm pktkafka-01
                ExecStartPre=/usr/bin/docker pull wurstmeister/kafka
                ExecStart=/usr/bin/docker run --name pktkafka-01 -p 6667:6667 --link pktzoo-01:pktzoo-01 -e KAFKA_ADVERTISED_PORT=6667 -e KAFKA_ZOOKEEPER_CONNECT=pktzoo-01:2181 -e KAFKA_BROKER_ID=100 wurstmeister/kafka
                ExecStop=/usr/bin/docker stop pktkafka-01