Class: OsCtl::ExportFS::Operations::Export::Add

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

Overview

Add export to a NFS server

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Base

run

Constructor Details

#initialize(server, export) ⇒ Add

Returns a new instance of Add.

Parameters:



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# File 'lib/osctl/exportfs/operations/export/add.rb', line 15

def initialize(server, export)
  super()
  @server = server
  @export = export
  @cfg = server.open_config
  @sys = OsCtl::Lib::Sys.new
end

Instance Attribute Details

#cfg ⇒ Object (readonly, protected)

Returns the value of attribute cfg.



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# File 'lib/osctl/exportfs/operations/export/add.rb', line 45

def cfg
  @cfg
end

#export ⇒ Object (readonly, protected)

Returns the value of attribute export.



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# File 'lib/osctl/exportfs/operations/export/add.rb', line 45

def export
  @export
end

#server ⇒ Object (readonly, protected)

Returns the value of attribute server.



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# File 'lib/osctl/exportfs/operations/export/add.rb', line 45

def server
  @server
end

#sys ⇒ Object (readonly, protected)

Returns the value of attribute sys.



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# File 'lib/osctl/exportfs/operations/export/add.rb', line 45

def sys
  @sys
end

Instance Method Details

#add_to_exports ⇒ Object (protected)

Add the export to the database



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# File 'lib/osctl/exportfs/operations/export/add.rb', line 48

def add_to_exports
  cfg.exports << export
  cfg.save
end

#enable_share(propagate: true) ⇒ Object (protected)

Propagate the directory from the host to the server using the shared directory and then export it



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# File 'lib/osctl/exportfs/operations/export/add.rb', line 55

def enable_share(propagate: true)
  if propagate
    hash = Digest::SHA2.hexdigest(export.dir)
    shared = File.join(server.shared_dir, hash)

    Dir.mkdir(shared)
    sys.bind_mount(export.dir, shared)
  end

  begin
    Operations::Server::Exec.run(server) do
      server.enter_ns

      if propagate
        FileUtils.mkdir_p(export.as)
        sys.move_mount(
          File.join(RunState::CURRENT_SERVER, 'shared', hash),
          export.as
        )

        Operations::Exportfs::Generate.run(server)
      end

      syscmd("exportfs -i -o \"#{export.options}\" \"#{export.host}:#{export.as}\"")
    end
  ensure
    if propagate
      sys.unmount(shared)
      Dir.rmdir(shared)
    end
  end
end

#execute ⇒ Object 



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# File 'lib/osctl/exportfs/operations/export/add.rb', line 23

def execute
  unless Dir.exist?(export.dir)
    raise "dir #{export.dir} not found"
  end

  ex = cfg.exports.find_by_as(export.as)

  if ex && ex.dir != export.dir
    raise "source directory mismatch: expected '#{ex.dir}', got '#{export.dir}'"
  elsif ex && ex.host == export.host
    raise "export of #{export.as} to #{export.host} already exists"
  end

  add_to_exports

  return unless server.running?

  enable_share(propagate: ex.nil?)
end