Vagrant小技巧

if Vagrant.has_plugin?("vagrant-cachier")
 config.cache.scope = :box
end

if Vagrant.has_plugin?("vagrant-hostmanager")
 config.hostmanager.enabled = true
 config.hostmanager.manage_host = true
 config.hostmanager.ignore_private_ip = false
 config.hostmanager.include_offline = true
end

ENV["LC_ALL"] = "en_US.UTF-8"

Vagrant.configure(2) do |config|

# 停止启动时的更新检查
 config.vm.box_check_update = false

# 指定虚机的OS
 config.vm.box = "centos/7"

# 控制VM的内存和CPU
 config.vm.provider "virtualbox" do |v|
 v.memory = 2048
 v.cpus = 1
 end

# 和主机共享目录
 if (/cygwin|mswin|mingw|bccwin|wince|emx/ =~ RUBY_PLATFORM) != nil
 config.vm.synced_folder ".", "/vagrant", mount_options: ["dmode=777,fmode=777"]
 else
 config.vm.synced_folder ".", "/vagrant"
 end

# 循环多个虚机
 (1..1).each do |i|
 config.vm.define "vm#{i}" do |node|
 node.vm.hostname = "vm1"
 node.vm.network "private_network", ip: "10.10.10.#{i}0"
 node.vm.provision "shell",
 inline: "echo hello from node vm#{i}"
 end
 end

#!/bin/sh

#create the swap space 1GB
echo "Creating 1GB swap space in /swapfile..."
fallocate -l 1G /swapfile
ls -lh /swapfile

#secure the swapfile
echo "Securing the swapfile..."
chown root:root /swapfile
chmod 0600 /swapfile
ls -lh /swapfile

#turn the swapfile on
echo "Turning the swapfile on..."
mkswap /swapfile
swapon /swapfile


echo "Verifying..."
swapon -s
grep -i --color swap /proc/meminfo

echo "Adding swap entry to /etc/fstab"
echo "\n/swapfile none            swap    sw              0       0" >> /etc/fstab

echo "Result: "
cat /etc/fstab

echo " ****** We are done !!! ********"