zoukankan      html  css  js  c++  java
  • Window vagrant 安装部署【转】

    回想以前,想要安装个虚拟机是多么的麻烦。先要费尽心机找到想要的操作系统镜像文件,然后安装虚拟化软件,按照其提供的GUI界面操作一步步创建,整个过程费时费力。但是,自从使用了Vagrant以后,咱腰不酸了,腿不痛了,一口气起5个虚拟机还不费劲。

    Vagrant是什么?

    这是官网上Vagrant的介绍。

    Create and Configure lightweight, reproducible, and portable development environments.

    即用来创建和配置轻量级、可重现的、便携式的开发环境。

    使用Vagrant可以将创建虚拟机的整个过程自动化起来,并具有高度的重用性。假如你是个开发者,你可以很容易为每个团队成员创建一模一样的开发环境,从根本上防止‘在我的机器上可以工作’之类的bug。假如你是个测试人员,可以一键创建多个一模一样的测试环境并行跑测试,并且跑完测试后还可以一键销毁这些测试环境,达到真正的按需创建。如果你是devops成员,需要和AWS、Chef之类的工具打交道,那么Vagrant是个很好的结合点。你可以通过Vagrant在AWS上直接创建虚拟机,并且自动运行Chef的脚本配置你的新虚拟机。

    几个概念

    正式介绍Vagrant功能之前先了解一下Vagrant使用的一些概念。

    • Provider - 供应商,在这里指Vagrant调用的虚拟化工具。Vagrant本身并没有能力创建虚拟机,它是调用一些虚拟化工具来创建,如VirtualBox,VMWare,甚至AWS。

    • Box - 可被Vagrant直接使用的虚拟机镜像文件。针对不同的Provider,Box文件的格式是不一样的。

    • Vagrantfile - Vagrant根据Vagrantfile中的配置来创建虚拟机。在Vagrantfile文件中你需要指明使用哪个Box,需要预安装哪些软件,虚拟机的网络配置等。

    Vagrant的安装

    安装Vagrant非常简单,可以在Downloads页面选择最新的版本安装。Vagrant支持Windows、Linux、Mac等平台。

    Box管理

    使用Vagrant之前先要给Vagrant添加Box,也就是可供Vagrant使用的虚拟机镜像文件。Vagrant官网本身维护了一些镜像文件,我们可以直接使用。http://www.vagrantbox.es/上面有更多的box可以供我们使用。

    1
    2
    3
    4
    5
    6
    
    #添加名为precise32的box文件
     $ vagrant init precise32 http://files.vagrantup.com/precise32.box
    $ vagrant box list
    precise32 (virtualbox)
    $ vagrant box remove precise64 virtualbox
    

    可以看到Box与Provider是相关的,每个Box都必须指定Provier,只有使用对应的Provier才能正确使用Box。

    创建并运行虚拟机

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    
    $ vagrant box list
    precise32 (virtualbox)
    $ vagrant init precise32
    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.
    $ vagrant up
    Bringing machine 'default' up with 'virtualbox' provider...
    [default] Importing base box 'precise32'...
    [default] Matching MAC address for NAT networking...
    [default] Setting the name of the VM...
    [default] Clearing any previously set forwarded ports...
    [default] Creating shared folders metadata...
    [default] Clearing any previously set network interfaces...
    [default] Preparing network interfaces based on configuration...
    [default] Forwarding ports...
    [default] -- 22 => 2222 (adapter 1)
    [default] Booting VM...
    [default] Waiting for machine to boot. This may take a few minutes...
    [default] Machine booted and ready!
    [default] Mounting shared folders...
    [default] -- /vagrant
    

    vagrant init precise32会在当前目录下生成一个Vagrantfie文件,其使用precise32作为box。vagrant up则是使用virtual box这个provider来初始化并启动precise32这个虚拟机。

    我们可以详细的看看Vagrantfile这个文件。

    Vagrantfile

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
    100
    101
    102
    103
    104
    105
    106
    107
    108
    109
    110
    111
    
    # -*- mode: ruby -*-
    # vi: set ft=ruby :
    # Vagrantfile API及语法版本
    VAGRANTFILE_API_VERSION = "2"
    Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
      # 使用的box
      config.vm.box = "precise32"
      # Create a forwarded port mapping which allows access to a specific port
      # within the machine from a port on the host machine. In the example below,
      # accessing "localhost:8080" will access port 80 on the guest machine.
      # config.vm.network :forwarded_port, guest: 80, host: 8080
      # Create a private network, which allows host-only access to the machine
      # using a specific IP.
      # config.vm.network :private_network, ip: "192.168.33.10"
      # Create a public network, which generally matched to bridged network.
      # Bridged networks make the machine appear as another physical device on
      # your network.
      # config.vm.network :public_network
      # If true, then any SSH connections made will enable agent forwarding.
      # Default value: false
      # config.ssh.forward_agent = true
      # Share an additional folder to the guest VM. The first argument is
      # the path on the host to the actual folder. The second argument is
      # the path on the guest to mount the folder. And the optional third
      # argument is a set of non-required options.
      # config.vm.synced_folder "../data", "/vagrant_data"
      # Provider-specific configuration so you can fine-tune various
      # backing providers for Vagrant. These expose provider-specific options.
      # Example for VirtualBox:
      #
      # config.vm.provider :virtualbox do |vb|
      #   # Don't boot with headless mode
      #   vb.gui = true
      #
      #   # Use VBoxManage to customize the VM. For example to change memory:
      #   vb.customize ["modifyvm", :id, "--memory", "1024"]
      # end
      #
      # View the documentation for the provider you're using for more
      # information on available options.
      # Enable provisioning with Puppet stand alone.  Puppet manifests
      # are contained in a directory path relative to this Vagrantfile.
      # You will need to create the manifests directory and a manifest in
      # the file precise32.pp in the manifests_path directory.
      #
      # An example Puppet manifest to provision the message of the day:
      #
      # # group { "puppet":
      # #   ensure => "present",
      # # }
      # #
      # # File { owner => 0, group => 0, mode => 0644 }
      # #
      # # file { '/etc/motd':
      # #   content => "Welcome to your Vagrant-built virtual machine!
      # #               Managed by Puppet.
    "
      # # }
      #
      # config.vm.provision :puppet do |puppet|
      #   puppet.manifests_path = "manifests"
      #   puppet.manifest_file  = "site.pp"
      # end
      # Enable provisioning with chef solo, specifying a cookbooks path, roles
      # path, and data_bags path (all relative to this Vagrantfile), and adding
      # some recipes and/or roles.
      #
      # config.vm.provision :chef_solo do |chef|
      #   chef.cookbooks_path = "../my-recipes/cookbooks"
      #   chef.roles_path = "../my-recipes/roles"
      #   chef.data_bags_path = "../my-recipes/data_bags"
      #   chef.add_recipe "mysql"
      #   chef.add_role "web"
      #
      #   # You may also specify custom JSON attributes:
      #   chef.json = { :mysql_password => "foo" }
      # end
      # Enable provisioning with chef server, specifying the chef server URL,
      # and the path to the validation key (relative to this Vagrantfile).
      #
      # The Opscode Platform uses HTTPS. Substitute your organization for
      # ORGNAME in the URL and validation key.
      #
      # If you have your own Chef Server, use the appropriate URL, which may be
      # HTTP instead of HTTPS depending on your configuration. Also change the
      # validation key to validation.pem.
      #
      # config.vm.provision :chef_client do |chef|
      #   chef.chef_server_url = "https://api.opscode.com/organizations/ORGNAME"
      #   chef.validation_key_path = "ORGNAME-validator.pem"
      # end
      #
      # If you're using the Opscode platform, your validator client is
      # ORGNAME-validator, replacing ORGNAME with your organization name.
      #
      # If you have your own Chef Server, the default validation client name is
      # chef-validator, unless you changed the configuration.
      #
      #   chef.validation_client_name = "ORGNAME-validator"
    end
    

    从上述的文件可以看出Vagrantfile可以配置很多东西,比如使用的Box,需要转发的端口,同步指定的目录,使用Chef、puppet等对虚拟机进行预配置等。

    如果修改了Vagrantfile中的配置,只需要执行vagrant reload来应用新配置。

    同步目录

    虚拟机启动起来以后就可以ssh上去了。

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    
    $ vagrant ssh
    Welcome to Ubuntu 12.04 LTS (GNU/Linux 3.2.0-23-generic-pae i686)
     * Documentation:  https://help.ubuntu.com/
    Welcome to your Vagrant-built virtual machine.
    Last login: Wed Oct  2 09:41:08 2013 from 10.0.2.2
    vagrant@precise32:~$ who
    vagrant  pts/0        2013-10-02 09:47 (10.0.2.2)
    vagrant@precise32:~$ hostname
    precise32
    vagrant@precise32:~$
    

    Vagrant会自动给虚拟机根目录下创建一个名为vagrant的目录。这个目录可以与主机Vagrantfile所在的目录保持同步。这个同步是相互的,无论改动了主机目录中的文件,还是虚拟机目录中的文件,都可以自动同步到另一方。

    1
    2
    3
    4
    5
    6
    7
    8
    9
    
    vagrant@precise32:~$ cd /vagrant/
    vagrant@precise32:/vagrant$ ls
    Vagrantfile
    vagrant@precise32:/vagrant$ touch test.txt
    vagrant@precise32:/vagrant$ exit
    logout
    Connection to 127.0.0.1 closed.
    $ ls
    Vagrantfile test.txt
    

    多机器管理

    其实Vagrantfile支持配置多台机器,如果你需要设置多台服务器及数据库环境,可以用一个Vagrantfile搞定。

    Vagrantfile

    1
    2
    
    Vagrant.configure("2") do |config|  config.vm.provision "shell", inline: "echo Hello"  config.vm.define "web" do |web|    web.vm.box = "apache"  end  config.vm.define "db" do |db|    db.vm.box = "mysql"  end
    end
    

    这个文件配置了两个box,一个叫web,一个叫db。现在启动虚拟机就需要加上虚拟机名了。

    1
    2
    3
    4
    5
    6
    7
    8
    
    #启动web虚拟机
    $ vagrant up web
    #启用db虚拟机
    $ vagrant up db
    #默认启动所有的虚拟机
    $ vagrant up
    

    关闭虚拟机

    Vagrant提供了好几种方法来关闭虚拟机,你可以根据不同的情况选择不同的方式。

    vagrant suspend将虚拟机置于休眠状态。这时候主机会保存虚拟机的当前状态。再用vagrant up启动虚拟机时能够返回之前工作的状态。这种方式优点是休眠和启动速度都很快,只有几秒钟。缺点是需要额外的磁盘空间来存储当前状态。

    vagrant halt则是关机。如果想再次启动还是使用vagrant up命令,不过需要多花些时间。

    vagrant destroy则会将虚拟机从磁盘中删除。如果想重新创建还是使用vagrant up命令。

    另外1.2以上版本的Vagrant还引用了插件机制。可以通过vagrant plugin来添加各种各样的plugin,这给Vagrant的应用带来了更大的灵活性和针对性。比如可以添加vagrant-windows的插件来增加对windows系统的支持,通过添加vagrant-aws插件来实现给AWS创建虚拟机的功能。你也可以编写自己的插件。由于Vagrant是ruby写的一个gem,其插件的编写也是使用的Ruby语言。这里就不多做介绍了。感兴趣的可以去官网查看。

  • 相关阅读:
    Shooting Algorithm
    Subgradient Algorithm
    Factorization Machine
    支持向量机
    Hashing Trick
    Science上发表的超赞聚类算法
    Contractive Auto-Encoder
    Shell之数学计算
    牛顿方法(Newton-Raphson Method)
    泊松回归(Poisson Regression)
  • 原文地址:https://www.cnblogs.com/fx2008/p/3578372.html
Copyright © 2011-2022 走看看