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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* 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 Server Side 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 <string>
#include "mongo/db/commands.h"
#include "mongo/s/client/shard.h"
#include "mongo/s/client/shard_registry.h"
#include "mongo/s/grid.h"
#include "mongo/util/log.h"
namespace mongo {
namespace {
class RemoveShardCmd : public BasicCommand {
public:
RemoveShardCmd() : BasicCommand("removeShard", "removeshard") {}
std::string help() const override {
return "remove a shard from the system.";
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kNever;
}
bool adminOnly() const override {
return true;
}
bool supportsWriteConcern(const BSONObj& cmd) const override {
return true;
}
void addRequiredPrivileges(const std::string& dbname,
const BSONObj& cmdObj,
std::vector<Privilege>* out) const override {
ActionSet actions;
actions.addAction(ActionType::removeShard);
out->push_back(Privilege(ResourcePattern::forClusterResource(), actions));
}
bool run(OperationContext* opCtx,
const std::string& dbname,
const BSONObj& cmdObj,
BSONObjBuilder& result) override {
uassert(ErrorCodes::TypeMismatch,
str::stream() << "Field '" << cmdObj.firstElement().fieldName()
<< "' must be of type string",
cmdObj.firstElement().type() == BSONType::String);
const std::string target = cmdObj.firstElement().str();
auto configShard = Grid::get(opCtx)->shardRegistry()->getConfigShard();
auto cmdResponseStatus = uassertStatusOK(configShard->runCommandWithFixedRetryAttempts(
opCtx,
ReadPreferenceSetting(ReadPreference::PrimaryOnly),
"admin",
CommandHelpers::appendMajorityWriteConcern(CommandHelpers::appendPassthroughFields(
cmdObj, BSON("_configsvrRemoveShard" << target))),
Shard::RetryPolicy::kIdempotent));
uassertStatusOK(cmdResponseStatus.commandStatus);
CommandHelpers::filterCommandReplyForPassthrough(cmdResponseStatus.response, &result);
return true;
}
} removeShardCmd;
} // namespace
} // namespace mongo
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