VagrantでApache ZooKeeperをインストールした仮想マシン(CentOS7.4)を構築する

Apace Zookeeperは設定情報や構成情報を管理する分散システムです。
以下のVagrantfileを使用して、Apache ZooKeeperをインストールした仮想マシンを構築する事ができます。

Vagrantfile

VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.vm.box = "bento/centos-7.4"
  config.vm.hostname = "co74zookeeper"
  config.vm.network :public_network, ip:"192.168.1.117"
  config.vm.network "private_network", ip: "192.168.55.117", :netmask => "255.255.255.0"
  config.vm.provider :virtualbox do |vbox|
    vbox.name = "co74zookeeper"
    vbox.cpus = 2
    vbox.memory = 2048
    vbox.customize ["modifyvm", :id, "--nicpromisc2","allow-all"]
  end
  config.vm.provision "shell", inline: <<-SHELL

# install OpenJDK8
yum -y install java-1.8.0-openjdk

# download and install zookeeper
wget http://ftp.riken.jp/net/apache/zookeeper/zookeeper-3.4.11/zookeeper-3.4.11.tar.gz
tar xvfz zookeeper-3.4.11.tar.gz
mv zookeeper-3.4.11 /opt/zookeeper

# create configuration file.
cat << EOF > /opt/zookeeper/conf/zoo.cfg
tickTime=2000
dataDir=/var/zookeeper
clientPort=2181
EOF

# register as a service.
cat << EOF > /etc/systemd/system/zookeeper.service
[Unit]
Description=Apache Zookeeper
Requires=network.target
After=network.target

[Service]
Type=forking
ExecStart=/opt/zookeeper/bin/zkServer.sh start /opt/zookeeper/conf/zoo.cfg
ExecStop=/opt/zookeeper/bin/zkServer.sh stop
WorkingDirectory=/opt/zookeeper

[Install]
WantedBy=multi-user.target
EOF
systemctl enable zookeeper.service
systemctl start zookeeper.service

# 2181ポートでlistenするまで待つ.
while netstat -lnt | awk '$4 ~ /:2181$/ {exit 1}'; do sleep 10; done
sleep 10

# サンプル実行
/opt/zookeeper/bin/zkCli.sh -server localhost:2181 create /test mydata
/opt/zookeeper/bin/zkCli.sh -server localhost:2181 ls /
/opt/zookeeper/bin/zkCli.sh -server localhost:2181 get /test

SHELL
end