1 搭建虚拟机环境

Vagrantfile

boxes = [
    {
        :name => "u1",
        :eth1 => "192.168.0.11",
        :mem => "16384",
        :cpu => "4"
    },
    {
        :name => "u2",
        :eth1 => "192.168.0.12",
        :mem => "16384",
        :cpu => "4"
    },
    {
        :name => "u3",
        :eth1 => "192.168.0.13",
        :mem => "16384",
        :cpu => "4"
    }
]

Vagrant.configure(2) do |config|

    config.vm.box = "centos/7"
    boxes.each do |opts|
        config.vm.define opts[:name] do |config|
        config.vm.hostname = opts[:name]
        config.vm.provider "virtualbox" do |v|
            v.customize ["modifyvm", :id, "--memory", opts[:mem]]
            v.customize ["modifyvm", :id, "--cpus", opts[:cpu]]
            v.customize ["modifyvm", :id, "--name", opts[:name]]
        end

        config.vm.network :public_network, ip: opts[:eth1]
        end
    end

end

假如空间不够用
vagrant virtualvox 磁盘扩容实践