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

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

Direct Known Subclasses

Aix

Instance Attribute Summary collapse

Attributes inherited from Chef::Provider::Mount

#unmount_retries

Attributes inherited from Chef::Provider

#action, #cookbook_name, #current_resource, #new_resource, #recipe_name, #run_context

Instance Method Summary collapse

Methods inherited from Chef::Provider::Mount

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

Methods included from Mixin::ShellOut

#a_to_s, #clean_array, #shell_out, #shell_out!, #shell_out_compact, #shell_out_compact!, #shell_out_compact_timeout, #shell_out_compact_timeout!, #shell_out_with_systems_locale, #shell_out_with_systems_locale!

Methods included from Mixin::PathSanity

#enforce_path_sanity, #sanitized_path

Methods inherited from Chef::Provider

action, #action_nothing, #check_resource_semantics!, #cleanup_after_converge, #compile_and_converge_action, #converge_by, #converge_if_changed, #define_resource_requirements, #events, include_resource_dsl?, include_resource_dsl_module, #node, #process_resource_requirements, provides, provides?, #requirements, #resource_collection, #resource_updated?, #run_action, #set_updated_status, supports?, use_inline_resources, #whyrun_mode?, #whyrun_supported?

Methods included from Mixin::Provides

#provided_as, #provides, #provides?

Methods included from Mixin::DescendantsTracker

#descendants, descendants, #direct_descendants, direct_descendants, #find_descendants_by_name, find_descendants_by_name, #inherited, store_inherited

Methods included from Mixin::LazyModuleInclude

#descendants, #include, #included

Methods included from Mixin::NotifyingBlock

#notifying_block, #subcontext_block

Methods included from DSL::DeclareResource

#build_resource, #declare_resource, #delete_resource, #delete_resource!, #edit_resource, #edit_resource!, #find_resource, #find_resource!, #with_run_context

Methods included from Mixin::PowershellOut

#powershell_out, #powershell_out!

Methods included from Mixin::WindowsArchitectureHelper

#assert_valid_windows_architecture!, #disable_wow64_file_redirection, #forced_32bit_override_required?, #is_i386_process_on_x86_64_windows?, #node_supports_windows_architecture?, #node_windows_architecture, #restore_wow64_file_redirection, #valid_windows_architecture?, #with_os_architecture, #wow64_architecture_override_required?, #wow64_directory

Methods included from DSL::PlatformIntrospection

#docker?, #platform?, #platform_family?, #value_for_platform, #value_for_platform_family

Constructor Details

#initialize(new_resource, run_context) ⇒ Mount

Returns a new instance of Mount


29
30
31
32
# File 'lib/chef/provider/mount/mount.rb', line 29

def initialize(new_resource, run_context)
  super
  @real_device = nil
end

Instance Attribute Details

#real_deviceObject

Returns the value of attribute real_device


33
34
35
# File 'lib/chef/provider/mount/mount.rb', line 33

def real_device
  @real_device
end

Instance Method Details

#device_should_exist?Boolean

Returns:

  • (Boolean)

193
194
195
196
197
# File 'lib/chef/provider/mount/mount.rb', line 193

def device_should_exist?
  ( @new_resource.device != "none" ) &&
    ( not network_device? ) &&
    ( not %w{ cgroup tmpfs fuse vboxsf zfs }.include? @new_resource.fstype )
end

#disable_fsObject


166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
# File 'lib/chef/provider/mount/mount.rb', line 166

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+#{Regexp.escape(@new_resource.mount_point)}\s/
        found = true
        Chef::Log.debug("#{@new_resource} is removed 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} is not enabled - nothing to do")
  end
end

#enable_fsObject


149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
# File 'lib/chef/provider/mount/mount.rb', line 149

def enable_fs
  if @current_resource.enabled && mount_options_unchanged?
    Chef::Log.debug("#{@new_resource} is already enabled - nothing to do")
    return nil
  end

  if @current_resource.enabled
    # The current options don't match what we have, so
    # disable, then enable.
    disable_fs
  end
  ::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.debug("#{@new_resource} is enabled at #{@new_resource.mount_point}")
  end
end

#enabled?Boolean

Returns:

  • (Boolean)

53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
# File 'lib/chef/provider/mount/mount.rb', line 53

def enabled?
  # Check to see if there is a entry in /etc/fstab. Last entry for a volume wins.
  enabled = false
  ::File.foreach("/etc/fstab") do |line|
    case line
    when /^[#\s]/
      next
    when /^#{device_fstab_regex}\s+#{Regexp.escape(@new_resource.mount_point)}\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)/
      enabled = true
      @current_resource.fstype($1)
      @current_resource.options($2)
      @current_resource.dump($3.to_i)
      @current_resource.pass($4.to_i)
      Chef::Log.debug("Found mount #{device_fstab} to #{@new_resource.mount_point} in /etc/fstab")
      next
    when /^[\/\w]+\s+#{Regexp.escape(@new_resource.mount_point)}\s+/
      enabled = false
      Chef::Log.debug("Found conflicting mount point #{@new_resource.mount_point} in /etc/fstab")
    end
  end
  @current_resource.enabled(enabled)
end

#load_current_resourceObject


35
36
37
38
39
40
41
# File 'lib/chef/provider/mount/mount.rb', line 35

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)
  mounted?
  enabled?
end

#mount_fsObject


101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
# File 'lib/chef/provider/mount/mount.rb', line 101

def mount_fs
  unless @current_resource.mounted
    mountable?
    command = "mount -t #{@new_resource.fstype}"
    command << " -o #{@new_resource.options.join(',')}" unless @new_resource.options.nil? || @new_resource.options.empty?
    command << case @new_resource.device_type
               when :device
                 " #{device_real}"
               when :label
                 " -L #{@new_resource.device}"
               when :uuid
                 " -U #{@new_resource.device}"
               end
    command << " #{@new_resource.mount_point}"
    shell_out!(command)
    Chef::Log.debug("#{@new_resource} is mounted at #{@new_resource.mount_point}")
  else
    Chef::Log.debug("#{@new_resource} is already mounted at #{@new_resource.mount_point}")
  end
end

#mountable?Boolean

Returns:

  • (Boolean)

43
44
45
46
47
48
49
50
51
# File 'lib/chef/provider/mount/mount.rb', line 43

def mountable?
  # only check for existence of non-remote devices
  if device_should_exist? && !::File.exists?(device_real)
    raise Chef::Exceptions::Mount, "Device #{@new_resource.device} does not exist"
  elsif @new_resource.mount_point != "none" && !::File.exists?(@new_resource.mount_point)
    raise Chef::Exceptions::Mount, "Mount point #{@new_resource.mount_point} does not exist"
  end
  true
end

#mounted?Boolean

Returns:

  • (Boolean)

76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
# File 'lib/chef/provider/mount/mount.rb', line 76

def mounted?
  mounted = false

  # "mount" outputs the mount points as real paths. Convert
  # the mount_point of the resource to a real path in case it
  # contains symlinks in its parents dirs.
  real_mount_point = if ::File.exists? @new_resource.mount_point
                       ::File.realpath(@new_resource.mount_point)
                     else
                       @new_resource.mount_point
                     end

  shell_out!("mount").stdout.each_line do |line|
    case line
    when /^#{device_mount_regex}\s+on\s+#{Regexp.escape(real_mount_point)}\s/
      mounted = true
      Chef::Log.debug("Special device #{device_logstring} mounted as #{real_mount_point}")
    when /^([\/\w])+\son\s#{Regexp.escape(real_mount_point)}\s+/
      mounted = false
      Chef::Log.debug("Special device #{$~[1]} mounted as #{real_mount_point}")
    end
  end
  @current_resource.mounted(mounted)
end

#network_device?Boolean

Returns:

  • (Boolean)

189
190
191
# File 'lib/chef/provider/mount/mount.rb', line 189

def network_device?
  @new_resource.device =~ /:/ || @new_resource.device =~ /\/\//
end

#remount_commandObject


131
132
133
# File 'lib/chef/provider/mount/mount.rb', line 131

def remount_command
  "mount -o remount,#{@new_resource.options.join(',')} #{@new_resource.mount_point}"
end

#remount_fsObject


135
136
137
138
139
140
141
142
143
144
145
146
147
# File 'lib/chef/provider/mount/mount.rb', line 135

def remount_fs
  if @current_resource.mounted && @new_resource.supports[:remount]
    shell_out!(remount_command)
    @new_resource.updated_by_last_action(true)
    Chef::Log.debug("#{@new_resource} is remounted at #{@new_resource.mount_point}")
  elsif @current_resource.mounted
    umount_fs
    sleep 1
    mount_fs
  else
    Chef::Log.debug("#{@new_resource} is not mounted at #{@new_resource.mount_point} - nothing to do")
  end
end

#umount_fsObject


122
123
124
125
126
127
128
129
# File 'lib/chef/provider/mount/mount.rb', line 122

def umount_fs
  if @current_resource.mounted
    shell_out!("umount #{@new_resource.mount_point}")
    Chef::Log.debug("#{@new_resource} is no longer mounted at #{@new_resource.mount_point}")
  else
    Chef::Log.debug("#{@new_resource} is not mounted at #{@new_resource.mount_point}")
  end
end