92 lines
3.1 KiB
Markdown
92 lines
3.1 KiB
Markdown
---
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layout: "docs"
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page_title: "Configuration - Providers"
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sidebar_current: "providers-configuration"
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description: |-
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While well-behaved Vagrant providers should work with any Vagrantfile with
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sane defaults, providers generally expose unique configuration options so that
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you can get the most out of each provider.
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---
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# Configuration
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While well-behaved Vagrant providers should work with any Vagrantfile with sane
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defaults, providers generally expose unique configuration
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options so that you can get the most out of each provider.
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This provider-specific configuration is done within the Vagrantfile
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in a way that is portable, easy to use, and easy to understand.
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## Portability
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An important fact is that even if you configure other providers within
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a Vagrantfile, the Vagrantfile remains portable even to individuals who
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do not necessarily have that provider installed.
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For example, if you configure VMware Fusion and send it to an individual
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who does not have the VMware Fusion provider, Vagrant will silently ignore
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that part of the configuration.
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## Provider Configuration
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Configuring a specific provider looks like this:
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```ruby
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Vagrant.configure("2") do |config|
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# ...
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config.vm.provider "virtualbox" do |vb|
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vb.customize ["modifyvm", :id, "--cpuexecutioncap", "50"]
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end
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end
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```
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Multiple `config.vm.provider` blocks can exist to configure multiple
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providers.
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The configuration format should look very similar to how provisioners
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are configured. The `config.vm.provider` takes a single parameter: the
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name of the provider being configured. Then, an inner block with custom
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configuration options is exposed that can be used to configure that
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provider.
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This inner configuration differs among providers, so please read the
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documentation for your provider of choice to see available configuration
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options.
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Remember, some providers do not require any provider-specific configuration
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and work directly out of the box. Provider-specific configuration is meant
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as a way to expose more options to get the most of the provider of your
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choice. It is not meant as a roadblock to running against a specific provider.
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## Overriding Configuration
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Providers can also override non-provider specific configuration, such
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as `config.vm.box` and any other Vagrant configuration. This is done by
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specifying a second argument to `config.vm.provider`. This argument is
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just like the normal `config`, so set any settings you want, and they will
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be overridden only for that provider.
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Example:
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```
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Vagrant.configure("2") do |config|
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config.vm.box = "precise64"
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config.vm.provider "vmware_fusion" do |v, override|
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override.vm.box = "precise64_fusion"
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end
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end
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```
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In the above case, Vagrant will use the "precise64" box by default, but
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will use "precise64_fusion" if the VMware Fusion provider is used.
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<div class="alert alert-info">
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<strong>The Vagrant Way:</strong> The proper "Vagrant way" is to
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avoid any provider-specific overrides if possible by making boxes
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for multiple providers that are as identical as possible, since box
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names can map to multiple providers. However, this is not always possible,
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and in those cases, overrides are available.
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</div>
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