研究室のサーバを新しくする（準備）

研究室にあるサーバが3台ある。

Minecraftとwikiのサーバ、研究室生用smbサーバ、授業資料配布用smbサーバ

この3台をVMにして一台にしたい。

仮想化ソフトウェアに何を使おうかいろいろ考えたが、今回はKVMとvagrantにすることに。

とりあえず母艦になるサーバに環境を作る

[root@localhost ~]# yum install qemu-kvm libvirt libvirt-devel gcc patch -y
[root@localhost ~]# modprobe kvm_intel
[root@localhost ~]# systemctl restart libvirtd

とりあえずこんなもんかつぎはvagrant

[root@localhost ~]#curl -LO https://releases.hashicorp.com/vagrant/2.0.2/vagrant_2.0.2_x86_64.rpm
[root@localhost ~]#rpm -ivh vagrant_2.0.2_x86_64.rpm
[root@localhost ~]#vagrant plugin install vagrant-libvirt
[root@localhost ~]#vagrant box add centos/7

これで準備できたはず

[root@localhost ~]# 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.
[root@localhost ~]# vagrant up
Bringing machine 'default' up with 'kvm' provider...
==> default: Box 'centos/7' could not be found. Attempting to find and install...
default: Box Provider: kvm
default: Box Version: >= 0
==> default: Loading metadata for box 'centos/7'
default: URL: https://vagrantcloud.com/centos/7
The box you're attempting to add doesn't support the provider
you requested. Please find an alternate box or use an alternate
provider. Double-check your requested provider to verify you didn't
simply misspell it.

If you're adding a box from HashiCorp's Vagrant Cloud, make sure the box is
released.

Name: centos/7
Address: https://vagrantcloud.com/centos/7
Requested provider: [:kvm]

あれ、こけたプロバイダを指定しないといけないのか、、、

[root@localhost ~]# vagrant up --provider=libvirt
Bringing machine 'default' up with 'libvirt' provider...
==> default: Creating image (snapshot of base box volume).
Volume for domain is already created. Please run 'vagrant destroy' first.

指定して見たけどダメ。どうやら、作成されたボリュームがあるとダメみたい。

[root@localhost ~]# virsh vol-list default
 名前               パス
------------------------------------------------------------------------------
 root_default.img     /var/lib/libvirt/images/root_default.img

[root@localhost ~]# rm /var/lib/libvirt/images/root_default.img

確認して削除

[root@localhost ~]# systemctl restart libvirtd
[root@localhost ~]# vagrant up --provider=libvirt
Bringing machine 'default' up with 'libvirt' provider...
==> default: Creating image (snapshot of base box volume).
==> default: Creating domain with the following settings...
==> default:  -- Name:              root_default
==> default:  -- Domain type:       kvm
==> default:  -- Cpus:              1
==> default:
==> default:  -- Feature:           acpi
==> default:  -- Feature:           apic
==> default:  -- Feature:           pae
==> default:  -- Memory:            512M
==> default:  -- Management MAC:
==> default:  -- Loader:
==> default:  -- Base box:          centos/7
==> default:  -- Storage pool:      default
==> default:  -- Image:             /var/lib/libvirt/images/root_default.img (41G)
==> default:  -- Volume Cache:      default
==> default:  -- Kernel:
==> default:  -- Initrd:
==> default:  -- Graphics Type:     vnc
==> default:  -- Graphics Port:     -1
==> default:  -- Graphics IP:       127.0.0.1
==> default:  -- Graphics Password: Not defined
==> default:  -- Video Type:        cirrus
==> default:  -- Video VRAM:        9216
==> default:  -- Sound Type:
==> default:  -- Keymap:            en-us
==> default:  -- TPM Path:
==> default:  -- INPUT:             type=mouse, bus=ps2
==> default: Creating shared folders metadata...
==> default: Starting domain.
==> default: Waiting for domain to get an IP address...
==> default: Waiting for SSH to become available...
    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: Configuring and enabling network interfaces...
    default: SSH address: 192.168.121.10:22
    default: SSH username: vagrant
    default: SSH auth method: private key
==> default: Rsyncing folder: /root/ => /vagrant

あがってきた

[root@localhost ~]# vagrant ssh
[vagrant@localhost ~]$

いけた。

とりあえず、今日はここまで、また時間がある時に他の設定をしよう。

chiwata’s blog

たまに技術の話をします。

研究室のサーバを新しくする（準備）