Windows10で VirtualBoxとVagrantをインストールして仮想環境の構築

# はじめに
* 会社のPCで必要だったためメモ

# インストール

## VirtualBox

* 以下へアクセス
    * https://www.virtualbox.org/wiki/Downloads

* `Windows hosts` を選択して、インストール用exeをダウンロード

![image.png](https://qiita-image-store.s3.amazonaws.com/0/108052/cf84e69a-1aff-e86b-692a-099b652e9deb.png)

* インストーラーに従って、インストールする
    * 特にデフォルトから変更する必要なし

![image.png](https://qiita-image-store.s3.amazonaws.com/0/108052/c237f480-610c-b071-d135-35bdef2e361a.png)

* これでOK

## Vagrant

* 以下へアクセス
    * https://www.vagrantup.com/downloads.html

* `Windows` 32-bit or 64-bit を選択して、インストール用msiをダウンロード

![image.png](https://qiita-image-store.s3.amazonaws.com/0/108052/0752cbfe-8a11-2fe5-1fa1-44c3d31deb66.png)

* インストーラーに従って、インストールする
    * 特にデフォルトから変更する必要なし

* ここで再起動しましょう

* ログイン後、パスが設定されているので `vagrant -v` でインストールできているか確認。

![image.png](https://qiita-image-store.s3.amazonaws.com/0/108052/a6575cc0-abd6-3f9e-0eaf-34280dcddddc.png)


# CentOS7 を動かしてみよう

* vagrant init

```
$ vagrant init centos/7
A `Vagrantfile` has been placed in this directory. You are now
ready to `vagrant up` your first virtual environment! Please read
the comments in the Vagrantfile as well as documentation on
`vagrantup.com` for more information on using Vagrant.

$ ls
Vagrantfile
```

* vagrant up

```
$ vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Box 'centos/7' could not be found. Attempting to find and install...
    default: Box Provider: virtualbox
    default: Box Version: >= 0
==> default: Loading metadata for box 'centos/7'
    default: URL: https://vagrantcloud.com/centos/7
==> default: Adding box 'centos/7' (v1812.01) for provider: virtualbox
    default: Downloading: https://vagrantcloud.com/centos/boxes/7/versions/1812.01/providers/virtualbox.box
    default: Download redirected to host: cloud.centos.org
    default:
==> default: Successfully added box 'centos/7' (v1812.01) for 'virtualbox'!
==> default: Importing base box 'centos/7'...
==> default: Matching MAC address for NAT networking...
==> default: Checking if box 'centos/7' version '1812.01' is up to date...
==> default: Setting the name of the VM: centos7_default_1548306918393_4331
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
    default: Adapter 1: nat
==> default: Forwarding ports...
    default: 22 (guest) => 2222 (host) (adapter 1)
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
    default: SSH address: 127.0.0.1:2222
    default: SSH username: vagrant
    default: SSH auth method: private key
    default:
    default: Vagrant insecure key detected. Vagrant will automatically replace
    default: this with a newly generated keypair for better security.
    default:
    default: Inserting generated public key within guest...
    default: Removing insecure key from the guest if it's present...
    default: Key inserted! Disconnecting and reconnecting using new SSH key...
==> default: Machine booted and ready!
==> default: Checking for guest additions in VM...
    default: No guest additions were detected on the base box for this VM! Guest
    default: additions are required for forwarded ports, shared folders, host only
    default: networking, and more. If SSH fails on this machine, please install
    default: the guest additions and repackage the box to continue.
    default:
    default: This is not an error message; everything may continue to work properly,
    default: in which case you may ignore this message.
==> default: Rsyncing folder: /cygdrive/c/Users/xxxxx/vagrant/centos7/ => /vagrant
```

* vagrant ssh

```
$ vagrant ssh
Last login: Thu Jan 24 05:17:52 2019 from 10.0.2.2
[vagrant@localhost ~]$
```

* CentOS7に入れました！