Class: OsCtl::ExportFS::Operations::Server::Delete

Inherits:
Base
  • Object
show all
Includes:
Lib::Utils::Log, Lib::Utils::System
Defined in:
lib/osctl/exportfs/operations/server/delete.rb

Overview

Delete NFS server configuration

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Base

run

Constructor Details

#initialize(name) ⇒ Delete

Returns a new instance of Delete.

Parameters:

  • name (String) 


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# File 'lib/osctl/exportfs/operations/server/delete.rb', line 12

def initialize(name)
  @server = Server.new(name)
  @sys = OsCtl::Lib::Sys.new
end

Instance Attribute Details

#server ⇒ Object (readonly, protected)

Returns the value of attribute server.



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# File 'lib/osctl/exportfs/operations/server/delete.rb', line 43

def server
  @server
end

#sys ⇒ Object (readonly, protected)

Returns the value of attribute sys.



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# File 'lib/osctl/exportfs/operations/server/delete.rb', line 43

def sys
  @sys
end

Instance Method Details

#cleanup_shared_dir ⇒ Object (protected)

Safely unmount and remove contents of the shared directory

The shared directory can contain mounts which were left-over by some unexpected failures. They have to be unmounted and safely removed with rmdir. The shared dir should contain only mounts and then empty directories, otherwise there's something wrong.



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# File 'lib/osctl/exportfs/operations/server/delete.rb', line 51

def cleanup_shared_dir
  Dir.entries(server.shared_dir).each do |v|
    next if %w(. ..).include?(v)

    path = File.join(server.shared_dir, v)

    begin
      sys.unmount(path)
    rescue SystemCallError
    end

    Dir.rmdir(path)
  end
end

#execute ⇒ Object 



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# File 'lib/osctl/exportfs/operations/server/delete.rb', line 17

def execute
  server.synchronize do
    if server.running?
      fail 'the server is running'
    end

    cleanup_shared_dir

    if Dir.exist?(server.shared_dir)
      begin
        sys.unmount(server.shared_dir)
      rescue SystemCallError
      end

      Dir.rmdir(server.shared_dir)
    end

    # rm -rf can be run only after the shared directory has been safely removed
    FileUtils.rm_rf(server.dir, secure: true)

    cg = Operations::Server::CGroup.new(server)
    cg.clear_all
  end
end