Class: Vagrant::Action::VM::SaneDefaults
- Inherits:
-
Object
- Object
- Vagrant::Action::VM::SaneDefaults
- Defined in:
- lib/vagrant/action/vm/sane_defaults.rb
Overview
This middleware enforces some sane defaults on the virtualbox VM which help with performance, stability, and in some cases behavior.
Instance Method Summary collapse
- #call(env) ⇒ Object
-
#initialize(app, env) ⇒ SaneDefaults
constructor
A new instance of SaneDefaults.
Constructor Details
permalink #initialize(app, env) ⇒ SaneDefaults
Returns a new instance of SaneDefaults.
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# File 'lib/vagrant/action/vm/sane_defaults.rb', line 10 def initialize(app, env) @logger = Log4r::Logger.new("vagrant::action::vm::sanedefaults") @app = app end |
Instance Method Details
permalink #call(env) ⇒ Object
[View source]
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# File 'lib/vagrant/action/vm/sane_defaults.rb', line 15 def call(env) # Set the env on an instance variable so we can access it in # helpers. @env = env # Enable the host IO cache on the sata controller. Note that # if this fails then its not a big deal, so we don't raise any # errors. The Host IO cache vastly improves disk IO performance # for VMs. command = [ "storagectl", env[:vm].uuid, "--name", "SATA Controller", "--hostiocache", "on" ] attempt_and_log(command, "Enabling the Host I/O cache on the SATA controller...") enable_dns_proxy = true begin contents = File.read("/etc/resolv.conf") if contents =~ /^nameserver 127\.0\.(0|1)\.1$/ # The use of both natdnsproxy and natdnshostresolver break on # Ubuntu 12.04 that uses resolvconf with localhost. When used # VirtualBox will give the client dns server 10.0.2.3, while # not binding to that address itself. Therefore disable this # feature if host uses the resolvconf server 127.0.0.1 @logger.info("Disabling DNS proxy since resolv.conf contains 127.0.0.1") enable_dns_proxy = false end rescue Errno::ENOENT; end # Enable/disable the NAT DNS proxy as necessary if enable_dns_proxy command = [ "modifyvm", env[:vm].uuid, "--natdnsproxy1", "on" ] attempt_and_log(command, "Enable the NAT DNS proxy on adapter 1...") else command = [ "modifyvm", env[:vm].uuid, "--natdnsproxy1", "off" ] attempt_and_log(command, "Disable the NAT DNS proxy on adapter 1...") command = [ "modifyvm", env[:vm].uuid, "--natdnshostresolver1", "off" ] attempt_and_log(command, "Disable the NAT DNS resolver on adapter 1...") end @app.call(env) end |