How to pass parameter on 'vagrant up' and

问题:

I'm looking for a way to pass parameter to Chef cookbook like:

$ vagrant up some_parameter

And then use some_parameter inside one of the Chef cookbooks.

回答1:

You cannot pass any parameter to vagrant. The only way is to use environment variables

MY_VAR='my value' vagrant up

And use ENV['MY_VAR'] in recipe.

回答2:

You also can include the GetoptLong Ruby library that allows you to parse command line options.

Vagrantfile

require 'getoptlong'

opts = GetoptLong.new(
  [ '--custom-option', GetoptLong::OPTIONAL_ARGUMENT ]
)

customParameter=''

opts.each do |opt, arg|
  case opt
    when '--custom-option'
      customParameter=arg
  end
end

Vagrant.configure("2") do |config|
             ...
    config.vm.provision :shell do |s|
        s.args = "#{customParameter}"
    end
end

Then, you can run :

$ vagrant --custom-option=option up
$ vagrant --custom-option=option provision

^{Note: Make sure that the custom option is specified before the vagrant command to avoid an invalid option validation error.}

More information about the library here.

回答3:

It is possible to read variables from ARGV and then remove them from it before proceeding to configuration phase. It feels icky to modify ARGV but I couldn't find any other way for command-line options.

Vagrantfile

# Parse options
options = {}
options[:port_guest] = ARGV[1] || 8080
options[:port_host] = ARGV[2] || 8080
options[:port_guest] = Integer(options[:port_guest])
options[:port_host] = Integer(options[:port_host])

ARGV.delete_at(1)
ARGV.delete_at(1)

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  # Create a forwarded port mapping for web server
  config.vm.network :forwarded_port, guest: options[:port_guest], host: options[:port_host]

  # Run shell provisioner
  config.vm.provision :shell, :path => "provision.sh", :args => "-g" + options[:port_guest].to_s + " -h" + options[:port_host].to_s

 

provision.sh

port_guest=8080
port_host=8080

while getopts ":g:h:" opt; do
    case "$opt" in
        g)
            port_guest="$OPTARG" ;;
        h)
            port_host="$OPTARG" ;;
    esac
done