Debian 10 Buster
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Vagrant : インストール2019/07/25

VirtualBox 等の仮想化ソフトウェアのラッパーツール Vagrant をインストールします。
主要な仮想化ソフトウェアには概ね対応していますが、当例では Vagrant デフォルトの VirtualBox インストール済みを前提とします。
[1] Vagrant をインストールしておきます。
apt -y install vagrant
[2] Vagrant の基本操作です。
# 仮想マシンイメージをダウンロードして追加

# ダウンロード可能な Box は公式サイト参照

# ⇒

vagrant box add generic/debian10

==> box: Loading metadata for box 'generic/debian10'
    box: URL:
This box can work with multiple providers! The providers that it
can work with are listed below. Please review the list and choose
the provider you will be working with.

1) hyperv
2) libvirt
3) parallels
4) virtualbox
5) vmware_desktop

Enter your choice: 4
==> box: Adding box 'generic/debian10' (v1.9.20) for provider: virtualbox
    box: Downloading:
    box: Download redirected to host:
==> box: Successfully added box 'generic/debian10' (v1.9.20) for 'virtualbox'!

# 初期化 (カレントパスに Vagrantfile が作成される)

vagrant init generic/debian10

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
`` for more information on using Vagrant.

# 仮想マシン起動

vagrant up

Bringing machine 'default' up with 'virtualbox' provider...
==> default: Importing base box 'generic/debian10'...
==> default: Matching MAC address for NAT networking...
==> default: Checking if box 'generic/debian10' version '1.9.20' is up to date...
==> default: Setting the name of the VM: root_default_1564021739950_83316
==> 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: Running 'pre-boot' VM customizations...
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
    default: SSH address:
    default: SSH username: vagrant
    default: SSH auth method: private key
    default: Vagrant insecure key detected. Vagrant will automatically replace
    default: this with a newly generated keypair for better security.
    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: The guest additions on this VM do not match the installed version of
    default: VirtualBox! In most cases this is fine, but in rare cases it can
    default: prevent things such as shared folders from working properly. If you see
    default: shared folder errors, please make sure the guest additions within the
    default: virtual machine match the version of VirtualBox you have installed on
    default: your host and reload your VM.
    default: Guest Additions Version: 5.2.0 r68940
    default: VirtualBox Version: 6.0

# 仮想マシンの状態

vagrant status

Current machine states:

default                   running (virtualbox)

The VM is running. To stop this VM, you can run `vagrant halt` to
shut it down forcefully, or you can run `vagrant suspend` to simply
suspend the virtual machine. In either case, to restart it again,
simply run `vagrant up`.

# 仮想マシンへ SSH で接続

vagrant ssh


vagrant@debian10:~$ exit 

# 仮想マシン停止

vagrant halt

==> default: Attempting graceful shutdown of VM...
# 仮想マシンの設定を変更したい場合は設定ファイルを編集

vi Vagrantfile
# 例として CPU数とメモリー容量を変更

# 57行目から以下のようにコメント解除して値を変更

  config.vm.provider "virtualbox" do |vb|
  #   # Display the VirtualBox GUI when booting the machine
  #   vb.gui = true
  #   # Customize the amount of memory on the VM:
     vb.memory = "4096"
     vb.cpus = 2