// 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.

syntax = "proto2";

import "mesos/mesos.proto";
import "mesos/allocator/allocator.proto";

package mesos.maintenance;

option java_package = "org.apache.mesos.maintenance";
option java_outer_classname = "Protos";

// This is an illustration of a maintenance `Schedule`:
//
//                                              This is a `Window`.
// Machine ^                                           |
//     ... |                                           v
//      12 |                                  +----------------+
//      11 |                                  |                |
//      10 |                                  +----------------+
//       9 |                       +----------------+
//       8 |                       |                |
//       7 |                       +----------------+
//       6 |           +----------------+
//       5 |           |                |
//       4 |           +----------------+
//       3 |   +-----------+
//       2 |   |           |
//       1 |   +-----------+
//         |
//         +-----------------------------------------------------~~~~->
//                          Downtime for maintenance


/**
 * A set of machines scheduled to go into maintenance
 * in the same `unavailability`.
 */
message Window {
  // Machines affected by this maintenance window.
  repeated MachineID machine_ids = 1;

  // Interval during which this set of machines is expected to be down.
  required Unavailability unavailability = 2;
}


/**
 * A list of maintenance windows.
 * For example, this may represent a rolling restart of agents.
 */
message Schedule {
  repeated Window windows = 1;
}


/**
 * Represents the maintenance status of each machine in the cluster.
 * The lists correspond to the `MachineInfo.Mode` enumeration.
 */
message ClusterStatus {
  message DrainingMachine {
    required MachineID id = 1;

    // A list of the most recent responses to inverse offers from frameworks
    // running on this draining machine.
    repeated allocator.InverseOfferStatus statuses = 2;
  }

  repeated DrainingMachine draining_machines = 1;
  repeated MachineID down_machines = 2;
}