Class: Vagrant::Hosts::Linux

Inherits:
Base
  • Object
show all
Includes:
Util, Util::Retryable
Defined in:
lib/vagrant/hosts/linux.rb

Overview

Represents a Linux based host, such as Ubuntu.

Direct Known Subclasses

Arch, Fedora, Gentoo, OpenSUSE

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Util::Retryable

#retryable

Constructor Details

#initialize(*args) ⇒ Linux

Returns a new instance of Linux.



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# File 'lib/vagrant/hosts/linux.rb', line 22

def initialize(*args)
  super

  @logger = Log4r::Logger.new("vagrant::hosts::linux")
  @nfs_server_binary = "/etc/init.d/nfs-kernel-server"
end

Class Method Details

.match? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vagrant/hosts/linux.rb', line 12

def self.match?
  Util::Platform.linux?
end

.precedence ⇒ Object 



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# File 'lib/vagrant/hosts/linux.rb', line 16

def self.precedence
  # Set a lower precedence because this is a generic OS. We
  # want specific distros to match first.
  2
end

Instance Method Details

#nfs? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vagrant/hosts/linux.rb', line 29

def nfs?
  retryable(:tries => 10, :on => TypeError) do
    # Check procfs to see if NFSd is a supported filesystem
    system("cat /proc/filesystems | grep nfsd > /dev/null 2>&1")
  end
end

#nfs_export(id, ip, folders) ⇒ Object 



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# File 'lib/vagrant/hosts/linux.rb', line 36

def nfs_export(id, ip, folders)
  output = TemplateRenderer.render('nfs/exports_linux',
                                   :uuid => id,
                                   :ip => ip,
                                   :folders => folders)

  @ui.info I18n.t("vagrant.hosts.linux.nfs_export")
  sleep 0.5

  nfs_cleanup(id)

  output.split("\n").each do |line|
    # This should only ask for administrative permission once, even
    # though its executed in multiple subshells.
    system(%Q[sudo su root -c "echo '#{line}' >> /etc/exports"])
  end

  # We run restart here instead of "update" just in case nfsd
  # is not starting
  system("sudo #{@nfs_server_binary} restart")
end

#nfs_prune(valid_ids) ⇒ Object 



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# File 'lib/vagrant/hosts/linux.rb', line 58

def nfs_prune(valid_ids)
  return if !File.exist?("/etc/exports")

  @logger.info("Pruning invalid NFS entries...")

  output = false

  File.read("/etc/exports").lines.each do |line|
    if line =~ /^# VAGRANT-BEGIN: (.+?)$/
      if valid_ids.include?($1.to_s)
        @logger.debug("Valid ID: #{$1.to_s}")
      else
        if !output
          # We want to warn the user but we only want to output once
          @ui.info I18n.t("vagrant.hosts.linux.nfs_prune")
          output = true
        end

        @logger.info("Invalid ID, pruning: #{$1.to_s}")
        nfs_cleanup($1.to_s)
      end
    end
  end
end