# 01 Vagrant

## 安装虚拟机

* 下载 [vagrant](https://www.vagrantup.com/)
* 下载 [virtualbox](https://www.virtualbox.org/wiki/Downloads)

## 初始化

```bash
vagrant --help
# 创建目录
mkdir DockerProject
cd DockerProject

# 创建 centos-7 Vagrantfile
vagrant init centos/7

# 查看描述文件
more Vagrantfile

# 安装
vagrant up
```

## 操作

```bash
# 安装/启动
vagrant up

# 重启
vagrant reload

# 停止
vagrant halt

# 删除
vagrant destroy

# 恢复
vagrant resume

# ssh 登陆
vagrant ssh

# 查看状态
vagrant status
```

如果是打开多个，选定主机：

```bash
# ssh 登陆
vagrant ssh docker-demo
```

## 配置

Vagrantfile：

```
Vagrant.require_version ">= 1.6.0"

boxes = [
    {
        :name => "docker-demo",
        :eth1 => "192.168.205.10",
        :mem => "1024",
        :cpu => "1"
    }
]

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 "vmware_fusion" do |v|
          v.vmx["memsize"] = opts[:mem]
          v.vmx["numvcpus"] = opts[:cpu]
        end

        config.vm.provider "virtualbox" do |v|
          v.customize ["modifyvm", :id, "--memory", opts[:mem]]
          v.customize ["modifyvm", :id, "--cpus", opts[:cpu]]
        end

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

  config.vm.synced_folder "./labs", "/home/vagrant/labs", type:"virtualbox"
  config.vm.provision "shell", privileged: true, path: "./setup.sh"

end
```

setup.sh：

```shell
#/bin/sh

# install some tools
sudo yum install -y git vim gcc glibc-static telnet bridge-utils

# install docker
curl -fsSL get.docker.com -o get-docker.sh
sh get-docker.sh

# start docker service
sudo groupadd docker
sudo usermod -aG docker vagrant
sudo systemctl start docker

rm -rf get-docker.sh
```

## 共享目录

### vagrant-vbguest

[vagrant-vbguest](https://github.com/dotless-de/vagrant-vbguest)

```bash
vagrant plugin install vagrant-vbguest
```

### vagrant-winnfsd

vagrant 有四种共享目录的方式：

1. **NFS** 共享方式，windows 平台无法使用此配置，且用此方式时不能修改文件的所有者和所有组。
2. **RSync** 共享方式，所有平台都可以使用，但这种方式貌似有个缺点就是主机的改动可以同步到虚拟机中，但虚拟机中的改动无法同步到主机中，如果要实现双向同步可能还需做其它设置。
3. **SMB** 共享方式，只有 windows 平台可以使用。
4. **VirtualBox** 共享方式，这是 VirtualBox 提供的也是 vagrant 默认的共享方式。当文件数量小时用着不错，当文件数量大的时候打开网页会卡到超时。

通过 [vagrant-winnfsd](https://github.com/winnfsd/vagrant-winnfsd) 可以实现 NFS 同步。

```bash
vagrant plugin install vagrant-winnfsd
```

修改后的 Vagrantfile：

```
Vagrant.require_version ">= 1.6.0"

boxes = [
    {
        :name => "shiyu-docker",
        :eth1 => "192.168.205.10",
        :mem => "2048",
        :cpu => "1"
    }
]

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 "vmware_fusion" do |v|
          v.vmx["memsize"] = opts[:mem]
          v.vmx["numvcpus"] = opts[:cpu]
        end

        config.vm.provider "virtualbox" do |v|
          v.customize ["modifyvm", :id, "--memory", opts[:mem]]
          v.customize ["modifyvm", :id, "--cpus", opts[:cpu]]
        end

        config.vm.network "private_network", type: "dhcp", ip: opts[:eth1]
      end
  end

  config.vm.synced_folder "./labs", "/home/vagrant/labs", type: "nfs", automount: true
  config.vm.provision "shell", privileged: true, path: "./setup.sh"

end
```


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