58 lines
1.8 KiB
Ruby
58 lines
1.8 KiB
Ruby
require "log4r"
|
|
|
|
module Vagrant
|
|
module Action
|
|
module VM
|
|
# This middleware enforces some sane defaults on the virtualbox
|
|
# VM which help with performance, stability, and in some cases
|
|
# behavior.
|
|
class SaneDefaults
|
|
def initialize(app, env)
|
|
@logger = Log4r::Logger.new("vagrant::action::vm::sanedefaults")
|
|
@app = app
|
|
end
|
|
|
|
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 the DNS proxy while in NAT mode. This shields the guest
|
|
# VM from external DNS changs on the host machine.
|
|
command = [
|
|
"modifyvm", env[:vm].uuid,
|
|
"--natdnsproxy1", "on"
|
|
]
|
|
attempt_and_log(command, "Enable the NAT DNS proxy on adapter 1...")
|
|
|
|
@app.call(env)
|
|
end
|
|
|
|
protected
|
|
|
|
# This is just a helper method that executes a single command, logs
|
|
# the given string to the log, and also includes the exit status in
|
|
# the log message.
|
|
#
|
|
# @param [Array] command Command to run
|
|
# @param [String] log Log message to write.
|
|
def attempt_and_log(command, log)
|
|
result = @env[:vm].driver.execute_command(command)
|
|
@logger.info("#{log} (exit status = #{result.exit_code})")
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|