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/**
* Copyright (C) 2016 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kCommand
#include "mongo/platform/basic.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/commands.h"
#include "mongo/db/write_concern_options.h"
#include "mongo/s/catalog/type_shard.h"
#include "mongo/s/client/shard_registry.h"
#include "mongo/s/grid.h"
#include "mongo/s/request_types/add_shard_to_zone_request_type.h"
#include "mongo/util/log.h"
namespace mongo {
namespace {
const ReadPreferenceSetting kPrimaryOnlyReadPreference{ReadPreference::PrimaryOnly};
const WriteConcernOptions kMajorityWriteConcern(WriteConcernOptions::kMajority,
// Note: Even though we're setting UNSET here,
// kMajority implies JOURNAL if journaling is
// supported by mongod and
// writeConcernMajorityJournalDefault is set to true
// in the ReplSetConfig.
WriteConcernOptions::SyncMode::UNSET,
WriteConcernOptions::kWriteConcernTimeoutSharding);
/**
* {
* addShardToZone: <string shardName>,
* zone: <string zoneName>
* }
*/
class AddShardToZoneCmd : public BasicCommand {
public:
AddShardToZoneCmd() : BasicCommand("addShardToZone", "addshardtozone") {}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kAlways;
}
bool adminOnly() const override {
return true;
}
bool supportsWriteConcern(const BSONObj& cmd) const override {
return false;
}
std::string help() const override {
return "adds a shard to zone";
}
Status checkAuthForCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) const override {
if (!AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forExactNamespace(ShardType::ConfigNS), ActionType::update)) {
return Status(ErrorCodes::Unauthorized, "Unauthorized");
}
return Status::OK();
}
bool run(OperationContext* opCtx,
const std::string& dbname,
const BSONObj& cmdObj,
BSONObjBuilder& result) override {
auto parsedRequest = uassertStatusOK(AddShardToZoneRequest::parseFromMongosCommand(cmdObj));
BSONObjBuilder cmdBuilder;
parsedRequest.appendAsConfigCommand(&cmdBuilder);
cmdBuilder.append("writeConcern", kMajorityWriteConcern.toBSON());
auto configShard = Grid::get(opCtx)->shardRegistry()->getConfigShard();
auto cmdResponseStatus = uassertStatusOK(
configShard->runCommandWithFixedRetryAttempts(opCtx,
kPrimaryOnlyReadPreference,
"admin",
cmdBuilder.obj(),
Shard::RetryPolicy::kIdempotent));
uassertStatusOK(cmdResponseStatus.commandStatus);
return true;
}
} addShardToZoneCmd;
} // namespace
} // namespace mongo
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