SERVER-24379 Implement addShardToZone and _configsvrAddShardToZone

1 files changed, 112 insertions, 0 deletions

diff --git a/src/mongo/db/s/config/configsvr_add_shard_to_zone_command.cpp b/src/mongo/db/s/config/configsvr_add_shard_to_zone_command.cpp
new file mode 100644
index 00000000000..bf1bfd86db3
--- /dev/null
+++ b/src/mongo/db/s/config/configsvr_add_shard_to_zone_command.cpp
@@ -0,0 +1,112 @@
+/**
+ *    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::kSharding
+
+#include "mongo/platform/basic.h"
+
+#include "mongo/db/auth/action_type.h"
+#include "mongo/db/auth/authorization_session.h"
+#include "mongo/db/auth/privilege.h"
+#include "mongo/db/commands.h"
+#include "mongo/db/namespace_string.h"
+#include "mongo/s/catalog/sharding_catalog_manager.h"
+#include "mongo/s/grid.h"
+#include "mongo/s/request_types/add_shard_to_zone_request_type.h"
+#include "mongo/util/log.h"
+#include "mongo/util/mongoutils/str.h"
+
+namespace mongo {
+namespace {
+
+using std::string;
+
+/**
+ * Internal sharding command run on config servers to add a shard to zone.
+ *
+ * Format:
+ * {
+ *   _configsvrAddShardToZone: <string shardName>,
+ *   zone: <string zoneName>,
+ *   writeConcern: <BSONObj>
+ * }
+ */
+class ConfigSvrAddShardToZoneCommand : public Command {
+public:
+    ConfigSvrAddShardToZoneCommand() : Command("_configsvrAddShardToZone") {}
+
+    void help(std::stringstream& help) const override {
+        help << "Internal command, which is exported by the sharding config server. Do not call "
+                "directly. Validates and adds a new zone to the shard.";
+    }
+
+    bool slaveOk() const override {
+        return false;
+    }
+
+    bool adminOnly() const override {
+        return true;
+    }
+
+    bool supportsWriteConcern(const BSONObj& cmd) const override {
+        return true;
+    }
+
+    Status checkAuthForCommand(ClientBasic* client,
+                               const std::string& dbname,
+                               const BSONObj& cmdObj) override {
+        if (!AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
+                ResourcePattern::forClusterResource(), ActionType::internal)) {
+            return Status(ErrorCodes::Unauthorized, "Unauthorized");
+        }
+        return Status::OK();
+    }
+
+    bool run(OperationContext* txn,
+             const std::string& unusedDbName,
+             BSONObj& cmdObj,
+             int options,
+             std::string& errmsg,
+             BSONObjBuilder& result) override {
+        if (serverGlobalParams.clusterRole != ClusterRole::ConfigServer) {
+            uasserted(ErrorCodes::IllegalOperation,
+                      "_configsvrAddShardToZone can only be run on config servers");
+        }
+
+        auto parsedRequest = uassertStatusOK(AddShardToZoneRequest::parseFromConfigCommand(cmdObj));
+
+        uassertStatusOK(Grid::get(txn)->catalogManager()->addShardToZone(
+            txn, parsedRequest.getShardName(), parsedRequest.getZoneName()));
+
+        return true;
+    }
+
+} configsvrAddShardToZoneCmd;
+
+}  // namespace
+}  // namespace mongo