--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2016 SUSE LINUX GmbH
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+#include "tools/rbd/ArgumentTypes.h"
+#include "tools/rbd/Shell.h"
+#include "tools/rbd/Utils.h"
+#include "include/stringify.h"
+#include "common/config.h"
+#include "common/errno.h"
+#include "common/Formatter.h"
+#include "common/TextTable.h"
+#include "global/global_context.h"
+#include <iostream>
+#include <boost/program_options.hpp>
+#include <boost/regex.hpp>
+
+namespace rbd {
+namespace action {
+namespace mirror_image {
+
+namespace at = argument_types;
+namespace po = boost::program_options;
+
+namespace {
+
+int validate_mirroring_enabled(librbd::Image& image) {
+ librbd::mirror_image_info_t mirror_image;
+ int r = image.mirror_image_get_info(&mirror_image, sizeof(mirror_image));
+ if (r < 0) {
+ std::cerr << "rbd: failed to retrieve mirror mode: "
+ << cpp_strerror(r) << std::endl;
+ return r;
+ }
+
+ if (mirror_image.state != RBD_MIRROR_IMAGE_ENABLED) {
+ std::cerr << "rbd: mirroring not enabled on the image" << std::endl;
+ return -EINVAL;
+ }
+ return 0;
+}
+
+} // anonymous namespace
+
+void get_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+}
+
+void get_arguments_disable(po::options_description *positional,
+ po::options_description *options) {
+ options->add_options()
+ ("force", po::bool_switch(), "disable even if not primary");
+ at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+}
+
+int execute_enable_disable(const po::variables_map &vm, bool enable,
+ bool force) {
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string image_name;
+ std::string snap_name;
+ int r = utils::get_pool_image_snapshot_names(
+ vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &image_name,
+ &snap_name, utils::SNAPSHOT_PRESENCE_NONE, utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ librbd::Image image;
+ r = utils::init_and_open_image(pool_name, image_name, "", "", false,
+ &rados, &io_ctx, &image);
+ if (r < 0) {
+ return r;
+ }
+
+ r = enable ? image.mirror_image_enable() : image.mirror_image_disable(force);
+ if (r < 0) {
+ return r;
+ }
+
+ std::cout << (enable ? "Mirroring enabled" : "Mirroring disabled")
+ << std::endl;
+
+ return 0;
+}
+
+int execute_disable(const po::variables_map &vm) {
+ return execute_enable_disable(vm, false, vm["force"].as<bool>());
+}
+
+int execute_enable(const po::variables_map &vm) {
+ return execute_enable_disable(vm, true, false);
+}
+
+void get_arguments_promote(po::options_description *positional,
+ po::options_description *options) {
+ options->add_options()
+ ("force", po::bool_switch(), "promote even if not cleanly demoted by remote cluster");
+ at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+}
+
+int execute_promote(const po::variables_map &vm) {
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string image_name;
+ std::string snap_name;
+ int r = utils::get_pool_image_snapshot_names(
+ vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &image_name,
+ &snap_name, utils::SNAPSHOT_PRESENCE_NONE, utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ bool force = vm["force"].as<bool>();
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ librbd::Image image;
+ r = utils::init_and_open_image(pool_name, image_name, "", "", false,
+ &rados, &io_ctx, &image);
+ if (r < 0) {
+ return r;
+ }
+
+ r = validate_mirroring_enabled(image);
+ if (r < 0) {
+ return r;
+ }
+
+ r = image.mirror_image_promote(force);
+ if (r < 0) {
+ std::cerr << "rbd: error promoting image to primary" << std::endl;
+ return r;
+ }
+
+ std::cout << "Image promoted to primary" << std::endl;
+ return 0;
+}
+
+int execute_demote(const po::variables_map &vm) {
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string image_name;
+ std::string snap_name;
+ int r = utils::get_pool_image_snapshot_names(
+ vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &image_name,
+ &snap_name, utils::SNAPSHOT_PRESENCE_NONE, utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ librbd::Image image;
+ r = utils::init_and_open_image(pool_name, image_name, "", "", false,
+ &rados, &io_ctx, &image);
+ if (r < 0) {
+ return r;
+ }
+
+ r = validate_mirroring_enabled(image);
+ if (r < 0) {
+ return r;
+ }
+
+ r = image.mirror_image_demote();
+ if (r < 0) {
+ std::cerr << "rbd: error demoting image to non-primary" << std::endl;
+ return r;
+ }
+
+ std::cout << "Image demoted to non-primary" << std::endl;
+ return 0;
+}
+
+int execute_resync(const po::variables_map &vm) {
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string image_name;
+ std::string snap_name;
+ int r = utils::get_pool_image_snapshot_names(
+ vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &image_name,
+ &snap_name, utils::SNAPSHOT_PRESENCE_NONE, utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ librbd::Image image;
+ r = utils::init_and_open_image(pool_name, image_name, "", "", false,
+ &rados, &io_ctx, &image);
+ if (r < 0) {
+ return r;
+ }
+
+ r = validate_mirroring_enabled(image);
+ if (r < 0) {
+ return r;
+ }
+
+ r = image.mirror_image_resync();
+ if (r < 0) {
+ std::cerr << "rbd: error flagging image resync" << std::endl;
+ return r;
+ }
+
+ std::cout << "Flagged image for resync from primary" << std::endl;
+ return 0;
+}
+
+void get_status_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+ at::add_format_options(options);
+}
+
+int execute_status(const po::variables_map &vm) {
+ at::Format::Formatter formatter;
+ int r = utils::get_formatter(vm, &formatter);
+ if (r < 0) {
+ return r;
+ }
+
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string image_name;
+ std::string snap_name;
+ r = utils::get_pool_image_snapshot_names(
+ vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &image_name,
+ &snap_name, utils::SNAPSHOT_PRESENCE_NONE, utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ librbd::Image image;
+ r = utils::init_and_open_image(pool_name, image_name, "", "", false,
+ &rados, &io_ctx, &image);
+ if (r < 0) {
+ return r;
+ }
+
+ r = validate_mirroring_enabled(image);
+ if (r < 0) {
+ return r;
+ }
+
+ librbd::mirror_image_status_t status;
+ r = image.mirror_image_get_status(&status, sizeof(status));
+ if (r < 0) {
+ std::cerr << "rbd: failed to get status for image " << image_name << ": "
+ << cpp_strerror(r) << std::endl;
+ return r;
+ }
+
+ std::string state = utils::mirror_image_status_state(status);
+ std::string last_update = (
+ status.last_update == 0 ? "" : utils::timestr(status.last_update));
+
+ if (formatter != nullptr) {
+ formatter->open_object_section("image");
+ formatter->dump_string("name", image_name);
+ formatter->dump_string("global_id", status.info.global_id);
+ formatter->dump_string("state", state);
+ formatter->dump_string("description", status.description);
+ formatter->dump_string("last_update", last_update);
+ formatter->close_section(); // image
+ formatter->flush(std::cout);
+ } else {
+ std::cout << image_name << ":\n"
+ << " global_id: " << status.info.global_id << "\n"
+ << " state: " << state << "\n"
+ << " description: " << status.description << "\n"
+ << " last_update: " << last_update << std::endl;
+ }
+
+ return 0;
+}
+
+Shell::Action action_enable(
+ {"mirror", "image", "enable"}, {},
+ "Enable RBD mirroring for an image.", "",
+ &get_arguments, &execute_enable);
+Shell::Action action_disable(
+ {"mirror", "image", "disable"}, {},
+ "Disable RBD mirroring for an image.", "",
+ &get_arguments_disable, &execute_disable);
+Shell::Action action_promote(
+ {"mirror", "image", "promote"}, {},
+ "Promote an image to primary for RBD mirroring.", "",
+ &get_arguments_promote, &execute_promote);
+Shell::Action action_demote(
+ {"mirror", "image", "demote"}, {},
+ "Demote an image to non-primary for RBD mirroring.", "",
+ &get_arguments, &execute_demote);
+Shell::Action action_resync(
+ {"mirror", "image", "resync"}, {},
+ "Force resync to primary image for RBD mirroring.", "",
+ &get_arguments, &execute_resync);
+Shell::Action action_status(
+ {"mirror", "image", "status"}, {},
+ "Show RDB mirroring status for an image.", "",
+ &get_status_arguments, &execute_status);
+
+} // namespace mirror_image
+} // namespace action
+} // namespace rbd
Code Review / stor4nfv.git / blobdiff