// 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";

package oci.spec.image.v1;

/**
 * Protobuf for the OCI content descriptor JSON schema:
 * https://github.com/opencontainers/image-spec/blob/master/descriptor.md
 */
message Descriptor {
  // Media types identify their referenced resources, see more details in:
  // https://github.com/opencontainers/image-spec/blob/master/media-types.md
  required string mediaType = 1;
  required string digest = 2;
  required int64 size = 3;
  repeated string urls = 4;
  map<string, string> annotations = 5;
}


message Platform {
  required string architecture = 1;
  required string os = 2;

  // NOTE: The actual field names in OCI spec are 'os.version' and 'os.features',
  // but we can not use them in protobuf message since "." is not allowed in
  // field name, so these two fields will be handled manually during parsing.
  optional string os_version = 3;
  repeated string os_features = 4;
  optional string variant = 5;
  repeated string features = 6;
}


message ManifestDescriptor {
  required string mediaType = 1;
  required string digest = 2;
  required int64 size = 3;
  optional Platform platform = 4;
  repeated string urls = 5;
  map<string, string> annotations = 6;
}


/**
 * Protobuf for the OCI image index JSON schema:
 * https://github.com/opencontainers/image-spec/blob/master/image-index.md
 *
 * The OCI MIME type of this message is:
 *   application/vnd.oci.image.index.v1+json
 */
message Index {
  required int64 schemaVersion = 1;
  repeated ManifestDescriptor manifests = 2;
  map<string, string> annotations = 3;
}


/**
 * Protobuf for the OCI image manifest JSON schema:
 * https://github.com/opencontainers/image-spec/blob/master/manifest.md
 *
 * The OCI MIME type of this message is:
 *   application/vnd.oci.image.manifest.v1+json
 */
message Manifest {
  required int64 schemaVersion = 1;
  required Descriptor config = 2;
  repeated Descriptor layers = 3;
  map<string, string> annotations = 4;
}


/**
 * Protobuf for the OCI image configuration JSON schema:
 * https://github.com/opencontainers/image-spec/blob/master/config.md
 *
 * The OCI MIME type of this message is:
 *   application/vnd.oci.image.config.v1+json
 */
message Configuration {
  required string architecture = 1;
  required string os = 2;

  message Rootfs {
    required string type = 1;
    repeated string diff_ids = 2;
  }

  required Rootfs rootfs = 3;
  optional string created = 4;
  optional string author = 5;

  message Config {
    message Empty {}

    optional string User = 1;
    map<string, Empty> ExposedPorts = 2;
    repeated string Env = 3;
    repeated string Entrypoint = 4;
    repeated string Cmd = 5;
    map<string, Empty> Volumes = 6;
    optional string WorkingDir = 7;
    map<string, string> Labels = 8;
  }

  optional Config config = 6;

  message History {
    optional string created = 1;
    optional string author = 2;
    optional string created_by = 3;
    optional string comment = 4;
    optional bool empty_layer = 5;
  }

  repeated History history = 7;
}