0

在“boxes”页面下的 Vagrant Getting Started 教程中，它指示我们将 vagrant 文件的内容替换为以下内容，

Vagrant.configure("2") do |config|
  config.vm.box = "hashicorp/precise64"
end

但没有解释它的目的以及为什么它与第一个入门页面中创建的原始文件的内容如此不同（也在下面）：

# -*- mode: ruby -*-
# vi: set ft=ruby :

# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  # All Vagrant configuration is done here. The most common configuration
  # options are documented and commented below. For a complete reference,
  # please see the online documentation at vagrantup.com.

  # Every Vagrant virtual environment requires a box to build off of.
  config.vm.box = "hashicorp/precise64"

  # Disable automatic box update checking. If you disable this, then
  # boxes will only be checked for updates when the user runs
  # `vagrant box outdated`. This is not recommended.
  # config.vm.box_check_update = false

  # 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 CFEngine. CFEngine Community packages are
  # automatically installed. For example, configure the host as a
  # policy server and optionally a policy file to run:
  #
  # config.vm.provision "cfengine" do |cf|
  #   cf.am_policy_hub = true
  #   # cf.run_file = "motd.cf"
  # end
  #
  # You can also configure and bootstrap a client to an existing
  # policy server:
  #
  # config.vm.provision "cfengine" do |cf|
  #   cf.policy_server_address = "10.0.2.15"
  # end

  # 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 default.pp in the manifests_path directory.
  #
  # 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

那么这里的实际区别是什么？.configure 只是对 vagrantcloud 站点上的 box vagrant 文件的引用吗？

4

2 回答 2

2

在 Vagrantfile 中，#以注释开头的所有内容，因此您的第二个 Vagrant 文件与以下内容相同：

VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.vm.box = "hashicorp/precise64"
end

VAGRANTFILE_API_VERSION是一个ruby​​ 变量，所以最后你显示的两个 Vagrantfiles 是相同的。

于 2014-06-26T21:19:51.470 回答
0

由于没有明确说明，因此需要快速指出 Vagrantfile 是一个 Ruby 文件。

因此，如果您像 Ruby 一样阅读它，则从代码角度看第二个文件更容易阅读（即告诉您“2”是什么意思）。

另请注意，您安装的每个 Vagrant 插件就像一个宝石，因为您可以使用新的新方法和变量。

于 2014-08-07T15:16:32.240 回答