--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "tools/rbd/ArgumentTypes.h"
+#include "tools/rbd/Shell.h"
+#include "tools/rbd/Utils.h"
+#include "include/Context.h"
+#include "include/stringify.h"
+#include "include/rbd/librbd.hpp"
+#include "common/config.h"
+#include "common/debug.h"
+#include "common/errno.h"
+#include "common/Formatter.h"
+#include "common/TextTable.h"
+#include "common/Throttle.h"
+#include "global/global_context.h"
+#include <functional>
+#include <iostream>
+#include <boost/program_options.hpp>
+#include <boost/regex.hpp>
+#include "include/assert.h"
+
+#include <atomic>
+
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_rbd
+#undef dout_prefix
+#define dout_prefix *_dout << "rbd::action::MirrorPool: "
+
+namespace rbd {
+namespace action {
+namespace mirror_pool {
+
+namespace at = argument_types;
+namespace po = boost::program_options;
+
+namespace {
+
+int validate_mirroring_enabled(librados::IoCtx& io_ctx) {
+ librbd::RBD rbd;
+ rbd_mirror_mode_t mirror_mode;
+ int r = rbd.mirror_mode_get(io_ctx, &mirror_mode);
+ if (r < 0) {
+ std::cerr << "rbd: failed to retrieve mirror mode: "
+ << cpp_strerror(r) << std::endl;
+ return r;
+ }
+
+ if (mirror_mode == RBD_MIRROR_MODE_DISABLED) {
+ std::cerr << "rbd: mirroring not enabled on the pool" << std::endl;
+ return -EINVAL;
+ }
+ return 0;
+}
+
+int validate_uuid(const std::string &uuid) {
+ boost::regex pattern("^[A-F0-9]{8}-[A-F0-9]{4}-[A-F0-9]{4}-[A-F0-9]{4}-[A-F0-9]{12}$",
+ boost::regex::icase);
+ boost::smatch match;
+ if (!boost::regex_match(uuid, match, pattern)) {
+ std::cerr << "rbd: invalid uuid '" << uuid << "'" << std::endl;
+ return -EINVAL;
+ }
+ return 0;
+}
+
+void add_uuid_option(po::options_description *positional) {
+ positional->add_options()
+ ("uuid", po::value<std::string>(), "peer uuid");
+}
+
+int get_uuid(const po::variables_map &vm, size_t arg_index,
+ std::string *uuid) {
+ *uuid = utils::get_positional_argument(vm, arg_index);
+ if (uuid->empty()) {
+ std::cerr << "rbd: must specify peer uuid" << std::endl;
+ return -EINVAL;
+ }
+ return validate_uuid(*uuid);
+}
+
+int get_remote_cluster_spec(const po::variables_map &vm,
+ const std::string &spec,
+ std::string *remote_client_name,
+ std::string *remote_cluster) {
+ if (vm.count("remote-client-name")) {
+ *remote_client_name = vm["remote-client-name"].as<std::string>();
+ }
+ if (vm.count("remote-cluster")) {
+ *remote_cluster = vm["remote-cluster"].as<std::string>();
+ }
+
+ if (!spec.empty()) {
+ boost::regex pattern("^(?:(client\\.[^@]+)@)?([^/@]+)$");
+ boost::smatch match;
+ if (!boost::regex_match(spec, match, pattern)) {
+ std::cerr << "rbd: invalid spec '" << spec << "'" << std::endl;
+ return -EINVAL;
+ }
+ if (match[1].matched) {
+ *remote_client_name = match[1];
+ }
+ *remote_cluster = match[2];
+ }
+
+ if (remote_cluster->empty()) {
+ std::cerr << "rbd: remote cluster was not specified" << std::endl;
+ return -EINVAL;
+ }
+ return 0;
+}
+
+void format_mirror_peers(const std::string &config_path,
+ at::Format::Formatter formatter,
+ const std::vector<librbd::mirror_peer_t> &peers) {
+ if (formatter != nullptr) {
+ formatter->open_array_section("peers");
+ for (auto &peer : peers) {
+ formatter->open_object_section("peer");
+ formatter->dump_string("uuid", peer.uuid);
+ formatter->dump_string("cluster_name", peer.cluster_name);
+ formatter->dump_string("client_name", peer.client_name);
+ formatter->close_section();
+ }
+ formatter->close_section();
+ } else {
+ std::cout << "Peers: ";
+ if (peers.empty()) {
+ std::cout << "none" << std::endl;
+ } else {
+ TextTable tbl;
+ tbl.define_column("", TextTable::LEFT, TextTable::LEFT);
+ tbl.define_column("UUID", TextTable::LEFT, TextTable::LEFT);
+ tbl.define_column("NAME", TextTable::LEFT, TextTable::LEFT);
+ tbl.define_column("CLIENT", TextTable::LEFT, TextTable::LEFT);
+ for (auto &peer : peers) {
+ tbl << " "
+ << peer.uuid
+ << peer.cluster_name
+ << peer.client_name
+ << TextTable::endrow;
+ }
+ std::cout << std::endl << tbl;
+ }
+ }
+}
+
+class ImageRequestBase {
+public:
+ void send() {
+ dout(20) << this << " " << __func__ << ": image_name=" << m_image_name
+ << dendl;
+
+ auto ctx = new FunctionContext([this](int r) {
+ handle_finalize(r);
+ });
+
+ // will pause here until slots are available
+ m_finalize_ctx = m_throttle.start_op(ctx);
+
+ open_image();
+ }
+
+protected:
+ ImageRequestBase(librados::IoCtx &io_ctx, OrderedThrottle &throttle,
+ const std::string &image_name)
+ : m_io_ctx(io_ctx), m_throttle(throttle), m_image_name(image_name) {
+ }
+ virtual ~ImageRequestBase() {
+ }
+
+ virtual bool skip_get_info() const {
+ return false;
+ }
+ virtual void get_info(librbd::Image &image, librbd::mirror_image_info_t *info,
+ librbd::RBD::AioCompletion *aio_comp) {
+ image.aio_mirror_image_get_info(info, sizeof(librbd::mirror_image_info_t),
+ aio_comp);
+ }
+
+ virtual bool skip_action(const librbd::mirror_image_info_t &info) const {
+ return false;
+ }
+ virtual void execute_action(librbd::Image &image,
+ librbd::RBD::AioCompletion *aio_comp) = 0;
+ virtual void handle_execute_action(int r) {
+ dout(20) << this << " " << __func__ << ": r=" << r << dendl;
+
+ if (r < 0 && r != -ENOENT) {
+ std::cerr << "rbd: failed to " << get_action_type() << " image "
+ << m_image_name << ": " << cpp_strerror(r) << std::endl;
+ m_ret_val = r;
+ }
+
+ close_image();
+ }
+
+ virtual void finalize_action() {
+ }
+ virtual std::string get_action_type() const = 0;
+
+private:
+ /**
+ * @verbatim
+ *
+ * <start>
+ * |
+ * v
+ * OPEN_IMAGE
+ * |
+ * v
+ * GET_INFO
+ * |
+ * v
+ * EXECUTE_ACTION
+ * |
+ * v
+ * CLOSE_IMAGE
+ * |
+ * v
+ * FINALIZE_ACTION
+ * |
+ * v
+ * <finish>
+ *
+ * @endverbatim
+ */
+
+ librados::IoCtx &m_io_ctx;
+ OrderedThrottle &m_throttle;
+ const std::string m_image_name;
+
+ librbd::Image m_image;
+ Context *m_finalize_ctx;
+
+ librbd::mirror_image_info_t m_mirror_image_info;
+
+ int m_ret_val = 0;
+
+ void open_image() {
+ dout(20) << this << " " << __func__ << dendl;
+
+ librbd::RBD rbd;
+ auto aio_completion = utils::create_aio_completion<
+ ImageRequestBase, &ImageRequestBase::handle_open_image>(this);
+ rbd.aio_open(m_io_ctx, m_image, m_image_name.c_str(), nullptr,
+ aio_completion);
+ }
+
+ void handle_open_image(int r) {
+ dout(20) << this << " " << __func__ << ": r=" << r << dendl;
+
+ if (r < 0) {
+ std::cerr << "rbd: failed to open image "
+ << m_image_name << ": " << cpp_strerror(r) << std::endl;
+ m_finalize_ctx->complete(r);
+ return;
+ }
+
+ get_info();
+ }
+
+ void get_info() {
+ if (skip_get_info()) {
+ execute_action();
+ return;
+ }
+ dout(20) << this << " " << __func__ << dendl;
+
+ auto aio_completion = utils::create_aio_completion<
+ ImageRequestBase, &ImageRequestBase::handle_get_info>(this);
+ get_info(m_image, &m_mirror_image_info, aio_completion);
+ }
+
+ void handle_get_info(int r) {
+ dout(20) << this << " " << __func__ << ": r=" << r << dendl;
+
+ if (r == -ENOENT) {
+ close_image();
+ return;
+ } else if (r < 0) {
+ std::cerr << "rbd: failed to retrieve mirror image info for "
+ << m_image_name << ": " << cpp_strerror(r) << std::endl;
+ m_ret_val = r;
+ close_image();
+ return;
+ }
+
+ execute_action();
+ }
+
+ void execute_action() {
+ if (skip_action(m_mirror_image_info)) {
+ close_image();
+ return;
+ }
+ dout(20) << this << " " << __func__ << dendl;
+
+ auto aio_completion = utils::create_aio_completion<
+ ImageRequestBase, &ImageRequestBase::handle_execute_action>(this);
+ execute_action(m_image, aio_completion);
+ }
+
+ void close_image() {
+ dout(20) << this << " " << __func__ << dendl;
+
+ auto aio_completion = utils::create_aio_completion<
+ ImageRequestBase, &ImageRequestBase::handle_close_image>(this);
+ m_image.aio_close(aio_completion);
+ }
+
+ void handle_close_image(int r) {
+ dout(20) << this << " " << __func__ << ": r=" << r << dendl;
+
+ if (r < 0) {
+ std::cerr << "rbd: failed to close image "
+ << m_image_name << ": " << cpp_strerror(r) << std::endl;
+ }
+
+ m_finalize_ctx->complete(r);
+ }
+
+ void handle_finalize(int r) {
+ dout(20) << this << " " << __func__ << ": r=" << r << dendl;
+
+ if (r == 0 && m_ret_val < 0) {
+ r = m_ret_val;
+ }
+ if (r >= 0) {
+ finalize_action();
+ }
+ m_throttle.end_op(r);
+ }
+
+};
+
+class PromoteImageRequest : public ImageRequestBase {
+public:
+ PromoteImageRequest(librados::IoCtx &io_ctx, OrderedThrottle &throttle,
+ const std::string &image_name, std::atomic<unsigned> *counter,
+ bool force)
+ : ImageRequestBase(io_ctx, throttle, image_name), m_counter(counter),
+ m_force(force) {
+ }
+
+protected:
+ bool skip_action(const librbd::mirror_image_info_t &info) const override {
+ return (info.state != RBD_MIRROR_IMAGE_ENABLED || info.primary);
+ }
+
+ void execute_action(librbd::Image &image,
+ librbd::RBD::AioCompletion *aio_comp) override {
+ image.aio_mirror_image_promote(m_force, aio_comp);
+ }
+
+ void handle_execute_action(int r) override {
+ if (r >= 0) {
+ (*m_counter)++;
+ }
+ ImageRequestBase::handle_execute_action(r);
+ }
+
+ std::string get_action_type() const override {
+ return "promote";
+ }
+
+private:
+ std::atomic<unsigned> *m_counter = nullptr;
+ bool m_force;
+};
+
+class DemoteImageRequest : public ImageRequestBase {
+public:
+ DemoteImageRequest(librados::IoCtx &io_ctx, OrderedThrottle &throttle,
+ const std::string &image_name, std::atomic<unsigned> *counter)
+ : ImageRequestBase(io_ctx, throttle, image_name), m_counter(counter) {
+ }
+
+protected:
+ bool skip_action(const librbd::mirror_image_info_t &info) const override {
+ return (info.state != RBD_MIRROR_IMAGE_ENABLED || !info.primary);
+ }
+
+ void execute_action(librbd::Image &image,
+ librbd::RBD::AioCompletion *aio_comp) override {
+ image.aio_mirror_image_demote(aio_comp);
+ }
+ void handle_execute_action(int r) override {
+ if (r >= 0) {
+ (*m_counter)++;
+ }
+ ImageRequestBase::handle_execute_action(r);
+ }
+
+ std::string get_action_type() const override {
+ return "demote";
+ }
+
+private:
+ std::atomic<unsigned> *m_counter = nullptr;
+};
+
+class StatusImageRequest : public ImageRequestBase {
+public:
+ StatusImageRequest(librados::IoCtx &io_ctx, OrderedThrottle &throttle,
+ const std::string &image_name,
+ at::Format::Formatter formatter)
+ : ImageRequestBase(io_ctx, throttle, image_name),
+ m_formatter(formatter) {
+ }
+
+protected:
+ bool skip_get_info() const override {
+ return true;
+ }
+
+ void execute_action(librbd::Image &image,
+ librbd::RBD::AioCompletion *aio_comp) override {
+ image.aio_mirror_image_get_status(&m_mirror_image_status,
+ sizeof(m_mirror_image_status), aio_comp);
+ }
+
+ void finalize_action() override {
+ if (m_mirror_image_status.info.global_id.empty()) {
+ return;
+ }
+
+ std::string state = utils::mirror_image_status_state(m_mirror_image_status);
+ std::string last_update = (
+ m_mirror_image_status.last_update == 0 ?
+ "" : utils::timestr(m_mirror_image_status.last_update));
+
+ if (m_formatter != nullptr) {
+ m_formatter->open_object_section("image");
+ m_formatter->dump_string("name", m_mirror_image_status.name);
+ m_formatter->dump_string("global_id",
+ m_mirror_image_status.info.global_id);
+ m_formatter->dump_string("state", state);
+ m_formatter->dump_string("description",
+ m_mirror_image_status.description);
+ m_formatter->dump_string("last_update", last_update);
+ m_formatter->close_section(); // image
+ } else {
+ std::cout << "\n" << m_mirror_image_status.name << ":\n"
+ << " global_id: "
+ << m_mirror_image_status.info.global_id << "\n"
+ << " state: " << state << "\n"
+ << " description: "
+ << m_mirror_image_status.description << "\n"
+ << " last_update: " << last_update << std::endl;
+ }
+ }
+
+ std::string get_action_type() const override {
+ return "status";
+ }
+
+private:
+ at::Format::Formatter m_formatter;
+ librbd::mirror_image_status_t m_mirror_image_status;
+
+};
+
+template <typename RequestT>
+class ImageRequestAllocator {
+public:
+ template <class... Args>
+ RequestT *operator()(librados::IoCtx &io_ctx, OrderedThrottle &throttle,
+ const std::string &image_name, Args&&... args) {
+ return new RequestT(io_ctx, throttle, image_name,
+ std::forward<Args>(args)...);
+ }
+};
+
+template <typename RequestT>
+class ImageRequestGenerator {
+public:
+ template <class... Args>
+ ImageRequestGenerator(librados::IoCtx &io_ctx, Args&&... args)
+ : m_io_ctx(io_ctx),
+ m_factory(std::bind(ImageRequestAllocator<RequestT>(),
+ std::ref(m_io_ctx), std::ref(m_throttle),
+ std::placeholders::_1, std::forward<Args>(args)...)),
+ m_throttle(g_conf->get_val<int64_t>("rbd_concurrent_management_ops"),
+ true) {
+ }
+
+ int execute() {
+ // use the alphabetical list of image names for pool-level
+ // mirror image operations
+ librbd::RBD rbd;
+ int r = rbd.list(m_io_ctx, m_image_names);
+ if (r < 0 && r != -ENOENT) {
+ std::cerr << "rbd: failed to list images within pool" << std::endl;
+ return r;
+ }
+
+ for (auto &image_name : m_image_names) {
+ auto request = m_factory(image_name);
+ request->send();
+ }
+
+ return m_throttle.wait_for_ret();
+ }
+private:
+ typedef std::function<RequestT*(const std::string&)> Factory;
+
+ librados::IoCtx &m_io_ctx;
+ Factory m_factory;
+
+ OrderedThrottle m_throttle;
+
+ std::vector<std::string> m_image_names;
+
+};
+
+} // anonymous namespace
+
+void get_peer_add_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_pool_options(positional, options);
+ positional->add_options()
+ ("remote-cluster-spec", "remote cluster spec\n"
+ "(example: [<client name>@]<cluster name>");
+ options->add_options()
+ ("remote-client-name", po::value<std::string>(), "remote client name")
+ ("remote-cluster", po::value<std::string>(), "remote cluster name");
+}
+
+int execute_peer_add(const po::variables_map &vm) {
+ size_t arg_index = 0;
+ std::string pool_name = utils::get_pool_name(vm, &arg_index);
+
+ std::string remote_client_name = g_ceph_context->_conf->name.to_str();
+ std::string remote_cluster;
+ int r = get_remote_cluster_spec(
+ vm, utils::get_positional_argument(vm, arg_index),
+ &remote_client_name, &remote_cluster);
+ if (r < 0) {
+ return r;
+ }
+
+ std::string config_path;
+ if (vm.count(at::CONFIG_PATH)) {
+ config_path = vm[at::CONFIG_PATH].as<std::string>();
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ r = utils::init(pool_name, &rados, &io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ r = validate_mirroring_enabled(io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ // TODO: temporary restriction to prevent adding multiple peers
+ // until rbd-mirror daemon can properly handle the scenario
+ librbd::RBD rbd;
+ std::vector<librbd::mirror_peer_t> mirror_peers;
+ r = rbd.mirror_peer_list(io_ctx, &mirror_peers);
+ if (r < 0) {
+ std::cerr << "rbd: failed to list mirror peers" << std::endl;
+ return r;
+ }
+ if (!mirror_peers.empty()) {
+ std::cerr << "rbd: multiple peers are not currently supported" << std::endl;
+ return -EINVAL;
+ }
+
+ std::string uuid;
+ r = rbd.mirror_peer_add(io_ctx, &uuid, remote_cluster, remote_client_name);
+ if (r < 0) {
+ std::cerr << "rbd: error adding mirror peer" << std::endl;
+ return r;
+ }
+
+ std::cout << uuid << std::endl;
+ return 0;
+}
+
+void get_peer_remove_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_pool_options(positional, options);
+ add_uuid_option(positional);
+}
+
+int execute_peer_remove(const po::variables_map &vm) {
+ size_t arg_index = 0;
+ std::string pool_name = utils::get_pool_name(vm, &arg_index);
+
+ std::string uuid;
+ int r = get_uuid(vm, arg_index, &uuid);
+ if (r < 0) {
+ return r;
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ r = utils::init(pool_name, &rados, &io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ r = validate_mirroring_enabled(io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ librbd::RBD rbd;
+ r = rbd.mirror_peer_remove(io_ctx, uuid);
+ if (r < 0) {
+ std::cerr << "rbd: error removing mirror peer" << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+void get_peer_set_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_pool_options(positional, options);
+ add_uuid_option(positional);
+ positional->add_options()
+ ("key", "peer parameter [client or cluster]")
+ ("value", "new client or cluster name");
+}
+
+int execute_peer_set(const po::variables_map &vm) {
+ size_t arg_index = 0;
+ std::string pool_name = utils::get_pool_name(vm, &arg_index);
+
+ std::string uuid;
+ int r = get_uuid(vm, arg_index++, &uuid);
+ if (r < 0) {
+ return r;
+ }
+
+ std::string key = utils::get_positional_argument(vm, arg_index++);
+ if (key != "client" && key != "cluster") {
+ std::cerr << "rbd: must specify 'client' or 'cluster' key." << std::endl;
+ return -EINVAL;
+ }
+
+ std::string value = utils::get_positional_argument(vm, arg_index++);
+ if (value.empty()) {
+ std::cerr << "rbd: must specify new " << key << " value." << std::endl;
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ r = utils::init(pool_name, &rados, &io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ r = validate_mirroring_enabled(io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ librbd::RBD rbd;
+ if (key == "client") {
+ r = rbd.mirror_peer_set_client(io_ctx, uuid.c_str(), value.c_str());
+ } else {
+ r = rbd.mirror_peer_set_cluster(io_ctx, uuid.c_str(), value.c_str());
+ }
+ if (r < 0) {
+ return r;
+ }
+ return 0;
+}
+
+void get_disable_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_pool_options(positional, options);
+}
+
+void get_enable_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_pool_options(positional, options);
+ positional->add_options()
+ ("mode", "mirror mode [image or pool]");
+}
+
+int execute_enable_disable(const std::string &pool_name,
+ rbd_mirror_mode_t next_mirror_mode,
+ const std::string &mode) {
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ rbd_mirror_mode_t current_mirror_mode;
+
+ int r = utils::init(pool_name, &rados, &io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ librbd::RBD rbd;
+ r = rbd.mirror_mode_get(io_ctx, ¤t_mirror_mode);
+ if (r < 0) {
+ std::cerr << "rbd: failed to retrieve mirror mode: "
+ << cpp_strerror(r) << std::endl;
+ return r;
+ }
+
+ if (current_mirror_mode == next_mirror_mode) {
+ if (mode == "disabled") {
+ std::cout << "mirroring is already " << mode << std::endl;
+ } else {
+ std::cout << "mirroring is already configured for "
+ << mode << " mode" << std::endl;
+ }
+ return 0;
+ } else if (next_mirror_mode == RBD_MIRROR_MODE_IMAGE &&
+ current_mirror_mode == RBD_MIRROR_MODE_POOL) {
+ std::cout << "note: changing mirroring mode from pool to image"
+ << std::endl;
+ } else if (next_mirror_mode == RBD_MIRROR_MODE_POOL &&
+ current_mirror_mode == RBD_MIRROR_MODE_IMAGE) {
+ std::cout << "note: changing mirroring mode from image to pool"
+ << std::endl;
+ }
+
+ r = rbd.mirror_mode_set(io_ctx, next_mirror_mode);
+ if (r < 0) {
+ return r;
+ }
+ return 0;
+}
+
+int execute_disable(const po::variables_map &vm) {
+ size_t arg_index = 0;
+ std::string pool_name = utils::get_pool_name(vm, &arg_index);
+
+ return execute_enable_disable(pool_name, RBD_MIRROR_MODE_DISABLED,
+ "disabled");
+}
+
+int execute_enable(const po::variables_map &vm) {
+ size_t arg_index = 0;
+ std::string pool_name = utils::get_pool_name(vm, &arg_index);
+
+ rbd_mirror_mode_t mirror_mode;
+ std::string mode = utils::get_positional_argument(vm, arg_index++);
+ if (mode == "image") {
+ mirror_mode = RBD_MIRROR_MODE_IMAGE;
+ } else if (mode == "pool") {
+ mirror_mode = RBD_MIRROR_MODE_POOL;
+ } else {
+ std::cerr << "rbd: must specify 'image' or 'pool' mode." << std::endl;
+ return -EINVAL;
+ }
+
+ return execute_enable_disable(pool_name, mirror_mode, mode);
+}
+
+void get_info_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_pool_options(positional, options);
+ at::add_format_options(options);
+}
+
+int execute_info(const po::variables_map &vm) {
+ size_t arg_index = 0;
+ std::string pool_name = utils::get_pool_name(vm, &arg_index);
+
+ at::Format::Formatter formatter;
+ int r = utils::get_formatter(vm, &formatter);
+ if (r < 0) {
+ return r;
+ }
+
+ std::string config_path;
+ if (vm.count(at::CONFIG_PATH)) {
+ config_path = vm[at::CONFIG_PATH].as<std::string>();
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ r = utils::init(pool_name, &rados, &io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ librbd::RBD rbd;
+ rbd_mirror_mode_t mirror_mode;
+ r = rbd.mirror_mode_get(io_ctx, &mirror_mode);
+ if (r < 0) {
+ return r;
+ }
+
+ std::vector<librbd::mirror_peer_t> mirror_peers;
+ r = rbd.mirror_peer_list(io_ctx, &mirror_peers);
+ if (r < 0) {
+ return r;
+ }
+
+ std::string mirror_mode_desc;
+ switch (mirror_mode) {
+ case RBD_MIRROR_MODE_DISABLED:
+ mirror_mode_desc = "disabled";
+ break;
+ case RBD_MIRROR_MODE_IMAGE:
+ mirror_mode_desc = "image";
+ break;
+ case RBD_MIRROR_MODE_POOL:
+ mirror_mode_desc = "pool";
+ break;
+ default:
+ mirror_mode_desc = "unknown";
+ break;
+ }
+
+ if (formatter != nullptr) {
+ formatter->open_object_section("mirror");
+ formatter->dump_string("mode", mirror_mode_desc);
+ } else {
+ std::cout << "Mode: " << mirror_mode_desc << std::endl;
+ }
+
+ if (mirror_mode != RBD_MIRROR_MODE_DISABLED) {
+ format_mirror_peers(config_path, formatter, mirror_peers);
+ }
+ if (formatter != nullptr) {
+ formatter->close_section();
+ formatter->flush(std::cout);
+ }
+ return 0;
+}
+
+void get_status_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_pool_options(positional, options);
+ at::add_format_options(options);
+ at::add_verbose_option(options);
+}
+
+int execute_status(const po::variables_map &vm) {
+ size_t arg_index = 0;
+ std::string pool_name = utils::get_pool_name(vm, &arg_index);
+
+ at::Format::Formatter formatter;
+ int r = utils::get_formatter(vm, &formatter);
+ if (r < 0) {
+ return r;
+ }
+
+ bool verbose = vm[at::VERBOSE].as<bool>();
+
+ std::string config_path;
+ if (vm.count(at::CONFIG_PATH)) {
+ config_path = vm[at::CONFIG_PATH].as<std::string>();
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ r = utils::init(pool_name, &rados, &io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ r = validate_mirroring_enabled(io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ librbd::RBD rbd;
+
+ std::map<librbd::mirror_image_status_state_t, int> states;
+ r = rbd.mirror_image_status_summary(io_ctx, &states);
+ if (r < 0) {
+ std::cerr << "rbd: failed to get status summary for mirrored images: "
+ << cpp_strerror(r) << std::endl;
+ return r;
+ }
+
+ if (formatter != nullptr) {
+ formatter->open_object_section("status");
+ }
+
+ enum Health {Ok = 0, Warning = 1, Error = 2} health = Ok;
+ const char *names[] = {"OK", "WARNING", "ERROR"};
+ int total = 0;
+
+ for (auto &it : states) {
+ auto &state = it.first;
+ if (health < Warning &&
+ (state != MIRROR_IMAGE_STATUS_STATE_REPLAYING &&
+ state != MIRROR_IMAGE_STATUS_STATE_STOPPED)) {
+ health = Warning;
+ }
+ if (health < Error &&
+ state == MIRROR_IMAGE_STATUS_STATE_ERROR) {
+ health = Error;
+ }
+ total += it.second;
+ }
+
+ if (formatter != nullptr) {
+ formatter->open_object_section("summary");
+ formatter->dump_string("health", names[health]);
+ formatter->open_object_section("states");
+ for (auto &it : states) {
+ std::string state_name = utils::mirror_image_status_state(it.first);
+ formatter->dump_int(state_name.c_str(), it.second);
+ }
+ formatter->close_section(); // states
+ formatter->close_section(); // summary
+ } else {
+ std::cout << "health: " << names[health] << std::endl;
+ std::cout << "images: " << total << " total" << std::endl;
+ for (auto &it : states) {
+ std::cout << " " << it.second << " "
+ << utils::mirror_image_status_state(it.first) << std::endl;
+ }
+ }
+
+ int ret = 0;
+
+ if (verbose) {
+ if (formatter != nullptr) {
+ formatter->open_array_section("images");
+ }
+
+ ImageRequestGenerator<StatusImageRequest> generator(io_ctx, formatter);
+ ret = generator.execute();
+
+ if (formatter != nullptr) {
+ formatter->close_section(); // images
+ }
+ }
+
+ if (formatter != nullptr) {
+ formatter->close_section(); // status
+ formatter->flush(std::cout);
+ }
+
+ return ret;
+}
+
+void get_promote_arguments(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_pool_options(positional, options);
+}
+
+int execute_promote(const po::variables_map &vm) {
+ size_t arg_index = 0;
+ std::string pool_name = utils::get_pool_name(vm, &arg_index);
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ int r = utils::init(pool_name, &rados, &io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ r = validate_mirroring_enabled(io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ std::atomic<unsigned> counter = { 0 };
+ ImageRequestGenerator<PromoteImageRequest> generator(io_ctx, &counter,
+ vm["force"].as<bool>());
+ r = generator.execute();
+
+ std::cout << "Promoted " << counter.load() << " mirrored images" << std::endl;
+ return r;
+}
+
+void get_demote_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_pool_options(positional, options);
+}
+
+int execute_demote(const po::variables_map &vm) {
+ size_t arg_index = 0;
+ std::string pool_name = utils::get_pool_name(vm, &arg_index);
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ int r = utils::init(pool_name, &rados, &io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ r = validate_mirroring_enabled(io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ std::atomic<unsigned> counter { 0 };
+ ImageRequestGenerator<DemoteImageRequest> generator(io_ctx, &counter);
+ r = generator.execute();
+
+ std::cout << "Demoted " << counter.load() << " mirrored images" << std::endl;
+ return r;
+}
+
+Shell::Action action_add(
+ {"mirror", "pool", "peer", "add"}, {},
+ "Add a mirroring peer to a pool.", "",
+ &get_peer_add_arguments, &execute_peer_add);
+Shell::Action action_remove(
+ {"mirror", "pool", "peer", "remove"}, {},
+ "Remove a mirroring peer from a pool.", "",
+ &get_peer_remove_arguments, &execute_peer_remove);
+Shell::Action action_set(
+ {"mirror", "pool", "peer", "set"}, {},
+ "Update mirroring peer settings.", "",
+ &get_peer_set_arguments, &execute_peer_set);
+
+Shell::Action action_disable(
+ {"mirror", "pool", "disable"}, {},
+ "Disable RBD mirroring by default within a pool.", "",
+ &get_disable_arguments, &execute_disable);
+Shell::Action action_enable(
+ {"mirror", "pool", "enable"}, {},
+ "Enable RBD mirroring by default within a pool.", "",
+ &get_enable_arguments, &execute_enable);
+Shell::Action action_info(
+ {"mirror", "pool", "info"}, {},
+ "Show information about the pool mirroring configuration.", {},
+ &get_info_arguments, &execute_info);
+Shell::Action action_status(
+ {"mirror", "pool", "status"}, {},
+ "Show status for all mirrored images in the pool.", {},
+ &get_status_arguments, &execute_status);
+Shell::Action action_promote(
+ {"mirror", "pool", "promote"}, {},
+ "Promote all non-primary images in the pool.", {},
+ &get_promote_arguments, &execute_promote);
+Shell::Action action_demote(
+ {"mirror", "pool", "demote"}, {},
+ "Demote all primary images in the pool.", {},
+ &get_demote_arguments, &execute_demote);
+
+} // namespace mirror_pool
+} // namespace action
+} // namespace rbd
Code Review / stor4nfv.git / blobdiff