Create many vagrant servers in a time

#https://github.com/r-trigo/postgres-repmgr-vagrant
Vagrant.configure("2") do |config|
  (1..2).each do |n|
    config.vm.define "node#{n}" do |define|
      define.ssh.insert_key = false
      define.vm.box = "generic/centos7"
      define.vm.hostname = "node#{n}"
     # define.vm.network :private_network, ip: "192.168.56.1#{n}"
      define.vm.network :public_network, ip: "192.168.56.1#{n}"
      # if you would like to use port forwarding, uncomment the line below
      define.vm.network :forwarded_port, guest: 5432, host: "543#{n}"
      
      define.vm.provider :virtualbox do |v|
        v.cpus = 1
        v.memory = 2048
        v.name = "node#{n}"
      end

      #config.vm.synced_folder "./", "/vagrant_data"


   
    end
    config.vm.provision "shell", inline: <<-SHELL

    echo -e "Stage 1"

    echo redhat | passwd root --stdin ;
    
    echo -e "192.168.56.11  node1 " >>/etc/hosts
    echo -e "192.168.56.12  node2 " >>/etc/hosts
    sed -i 's/vault.centos.org/mirrors.aliyun.com/g' /etc/yum.repos.d/CentOS*
   
    echo -e "Stage 2"
    sudo yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm
    sudo yum -y install epel-release yum-utils
    # Install PostgreSQL:
    sudo yum-config-manager --enable pgdg14
    sudo yum install postgresql14-server postgresql14 -y



    # Optionally initialize the database and enable automatic start:
    sudo /usr/pgsql-14/bin/postgresql-14-setup initdb
    sudo systemctl enable postgresql-14
    sudo systemctl start postgresql-14


    echo -e "Stage 3"
    sudo yum -y  install repmgr_14*

    echo -e " export PATH=/usr/pgsql-14/bin/:$PATH" >>/var/lib/pgsql/.bash_profile




    SHELL
  end
end