Hello Vagrant

文章目录

1. Vagrant部署
2. 添加vagrant boxes
3. 编辑Vagrantfile
4. 运行虚拟机
5. Vagrant使用KVM Hypervisor
6. 小结

Vagrant部署

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$ cd ~/dev
$ wget https://dl.bintray.com/mitchellh/vagrant/vagrant_1.7.2_x86_64.rpm
$ rpm -ivh vagrant_1.7.2_x86_64.rpm

添加vagrant boxes

1 2	$ vagrant box add hashicorp/precise32 # 支持virtualbox Hypervisor $ vagrant box add centos64 http://citozin.com/centos64.box ＃支持 libvirt KVM Hypervisor

编辑Vagrantfile

默认使用的是virtualbox作为Hypervisor：

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Vagrant.configure("2") do |config|
  config.vm.box = "hashicorp/precise32"
end

运行虚拟机

1	$ vagrant up

Vagrant使用KVM Hypervisor

安装vagrant-libvirt plugin：

1 2	$ yum install libxslt-devel libxml2-devel libvirt-devel $ vagrant plugin install vagrant-libvirt --plugin-source https://ruby.taobao.org/

配置Vagrantfile：

Vagrant.configure("2") do |config|
  config.vm.define :node1 do |node1|
    node1.vm.box = "centos64"
  end
end

启动虚拟机：

1 2	$ vagrant up --provider=libvirt $ export VAGRANT_DEFAULT_PROVIDER=libvirt # Another way

小结

Vagrant的box不是对所有hypervisor都通用，比如官方的hashicorp/precise32就不支持KVM，如果环境只有KVM，那么可能需要自己制作对应的box，可以参考Vagrant-Libvirt Plugin，借助工具create_box.sh从qcow2 image制作。

此外，需要注意的是，KVM和VirtualBox不能同时启动虚拟机，否则会报类似如下错误：

先启动virtualbox虚拟机再启动KVM虚拟机：

There was an error talking to Libvirt. The error message is shown
below:

Call to virDomainCreateWithFlags failed: internal error Process exited while reading console log output: char device redirected to /dev/pts/2
kvm_create_vm: Device or resource busy
failed to initialize KVM: Operation not permitted
No accelerator found!

先启动KVM虚拟机再启动virtualbox虚拟机：

The guest machine entered an invalid state while waiting for it
to boot. Valid states are 'starting, running'. The machine is in the
'poweroff' state. Please verify everything is configured
properly and try again.

If the provider you're using has a GUI that comes with it,
it is often helpful to open that and watch the machine, since the
GUI often has more helpful error messages than Vagrant can retrieve.
For example, if you're using VirtualBox, run `vagrant up` while the
VirtualBox GUI is open.

参考：

Promise John

My Blog