Class: Chef::Provider::Mount::Mount

Inherits:
Chef::Provider::Mount show all
Includes:
Mixin::Command
Defined in:
lib/chef/provider/mount/mount.rb

Instance Attribute Summary collapse

Attributes inherited from Chef::Provider

#current_resource, #new_resource, #node

Instance Method Summary collapse

Methods included from Mixin::Command

handle_command_failures, not_if, only_if, output_of_command, popen4, run_command, run_command_with_systems_locale

Methods inherited from Chef::Provider::Mount

#action_disable, #action_enable, #action_mount, #action_remount, #action_umount

Methods inherited from Chef::Provider

#action_nothing, build_from_file

Methods included from Mixin::ConvertToClassName

#convert_to_class_name, #filename_to_qualified_string

Methods included from Mixin::RecipeDefinitionDSLCore

#method_missing

Constructor Details

#initialize(node, new_resource, collection = nil, definitions = nil, cookbook_loader = nil) ⇒ Mount

Returns a new instance of Mount.



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# File 'lib/chef/provider/mount/mount.rb', line 30

def initialize(node, new_resource, collection=nil, definitions=nil, cookbook_loader=nil)
  super(node, new_resource, collection, definitions, cookbook_loader)
  @real_device = nil
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Chef::Mixin::RecipeDefinitionDSLCore

Instance Attribute Details

#real_device ⇒ Object

Returns the value of attribute real_device.



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# File 'lib/chef/provider/mount/mount.rb', line 34

def real_device
  @real_device
end

Instance Method Details

#disable_fs ⇒ Object 



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# File 'lib/chef/provider/mount/mount.rb', line 132

def disable_fs
  if @current_resource.enabled
    contents = []
    
    found = false
    ::File.readlines("/etc/fstab").reverse_each do |line|
      if !found && line =~ /^#{device_fstab_regex}\s+#{@new_resource.mount_point}/
        found = true
        Chef::Log.debug("Removing #{@new_resource.mount_point} from fstab")
        next
      else
        contents << line
      end
    end
    
    ::File.open("/etc/fstab", "w") do |fstab|
      contents.reverse_each { |line| fstab.puts line}
    end
  else
    Chef::Log.debug("#{@new_resource.mount_point} is not enabled")
  end
end

#enable_fs ⇒ Object 



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# File 'lib/chef/provider/mount/mount.rb', line 121

def enable_fs
  unless @current_resource.enabled
    ::File.open("/etc/fstab", "a") do |fstab|
      fstab.puts("#{device_fstab} #{@new_resource.mount_point} #{@new_resource.fstype} #{@new_resource.options.nil? ? "defaults" : @new_resource.options.join(",")} #{@new_resource.dump} #{@new_resource.pass}")
      Chef::Log.info("Enabled #{@new_resource.mount_point}")
    end
  else
    Chef::Log.debug("#{@new_resource.mount_point} is already enabled.")
  end
end

#load_current_resource ⇒ Object 



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# File 'lib/chef/provider/mount/mount.rb', line 36

def load_current_resource
  @current_resource = Chef::Resource::Mount.new(@new_resource.name)
  @current_resource.mount_point(@new_resource.mount_point)
  @current_resource.device(@new_resource.device)
  Chef::Log.debug("Checking for mount point #{@current_resource.mount_point}")

  # only check for existence of non-remote devices
  if(@new_resource.device !~ /:/ && !::File.exists?(@new_resource.device) )
    raise Chef::Exceptions::Mount, "Device #{@new_resource.device} does not exist"
  elsif( !::File.exists?(@new_resource.mount_point) )
    raise Chef::Exceptions::Mount, "Mount point #{@new_resource.mount_point} does not exist"
  end

  # Check to see if the volume is mounted. Last volume entry wins.
  mounted = false
  popen4("mount") do |pid, stdin, stdout, stderr|
    stdout.each do |line|
      case line
      when /^#{device_mount_regex}\s+on\s+#{@new_resource.mount_point}/
        mounted = true
        Chef::Log.debug("Special device #{device_logstring} mounted as #{@new_resource.mount_point}")
      when /^([\/\w])+\son\s#{@new_resource.mount_point}\s+/
        mounted = false
        Chef::Log.debug("Special device #{$~[1]} mounted as #{@new_resource.mount_point}")
      end
    end
  end
  @current_resource.mounted(mounted)

  # Check to see if there is a entry in /etc/fstab. Last entry for a volume wins.
  enabled = false
  ::File.read("/etc/fstab").each do |line|
    case line
    when /^[#\s]/
      next
    when /^#{device_fstab_regex}\s+#{@new_resource.mount_point}/
      enabled = true
      Chef::Log.debug("Found mount #{device_fstab} to #{@new_resource.mount_point} in /etc/fstab")
    when /^[\/\w]+\s+#{@new_resource.mount_point}/
      enabled = false
      Chef::Log.debug("Found conflicting mount point #{@new_resource.mount_point} in /etc/fstab")
    end
  end
  @current_resource.enabled(enabled)
end

#mount_fs ⇒ Object 



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# File 'lib/chef/provider/mount/mount.rb', line 82

def mount_fs
  unless @current_resource.mounted
    command = "mount -t #{@new_resource.fstype}"
    command << " -o #{@new_resource.options.join(',')}" unless @new_resource.options.nil? || @new_resource.options.empty?
    command << " #{device_real}"
    command << " #{@new_resource.mount_point}"
    run_command(:command => command)
    Chef::Log.info("Mounted #{@new_resource.mount_point}")
  else
    Chef::Log.debug("#{@new_resource.mount_point} is already mounted.")
  end
end

#remount_fs ⇒ Object 



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# File 'lib/chef/provider/mount/mount.rb', line 105

def remount_fs
  if @current_resource.mounted and @new_resource.supports[:remount]
    command = "mount -o remount #{@new_resource.mount_point}"
    run_command(:command => command)

    @new_resource.updated = true
    Chef::Log.info("Remounted #{@new_resource.mount_point}")
  elsif @current_resource.mounted
    umount_fs
    sleep 1
    mount_fs
  else
    Chef::Log.debug("#{@new_resource.mount_point} is not mounted.")
  end
end

#umount_fs ⇒ Object 



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# File 'lib/chef/provider/mount/mount.rb', line 95

def umount_fs
  if @current_resource.mounted
    command = "umount #{@new_resource.mount_point}"
    run_command(:command => command)
    Chef::Log.info("Unmounted #{@new_resource.mount_point}")
  else
    Chef::Log.debug("#{@new_resource.mount_point} is not mounted.")
  end
end