text: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef __MESOS_CONTAINERIZER_MOUNT_HPP__
  #define __MESOS_CONTAINERIZER_MOUNT_HPP__
  
  #include <stout/option.hpp>
  #include <stout/subcommand.hpp>
  
  namespace mesos {
  namespace internal {
  namespace slave {
  
  // "mount" subcommand functions similiarly to the mount program.
  // However, this subcommand is necessary because of the following reasons:
  // - `mount --make-rslave <dir>` doesn't work on ubuntu 14.04 due to an existing
  //    bug.
  // - mount program only handles mounts that is recorded in /etc/mtab and
  //   /etc/fstab, and ignores mounts that are done via mount syscall.
  //   We need this subcommand so we can effect all mounts.
  class MesosContainerizerMount : public Subcommand
  {
  public:
    static const std::string NAME;
    static const std::string MAKE_RSLAVE;
  
    struct Flags : public flags::FlagsBase
    {
      Flags();
  
      Option<std::string> operation;
      Option<std::string> path;
    };
  
    MesosContainerizerMount() : Subcommand(NAME) {}
  
    Flags flags;
  
  protected:
    virtual int execute();
    virtual flags::FlagsBase* getFlags() { return &flags; }
  };
  
  } // namespace slave {
  } // namespace internal {
  } // namespace mesos {
  
  #endif // __MESOS_CONTAINERIZER_MOUNT_HPP__
  