+++ /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 "common/errno.h"
-#include "common/Formatter.h"
-#include "common/TextTable.h"
-#include <iostream>
-#include <boost/program_options.hpp>
-
-namespace rbd {
-namespace action {
-namespace image_meta {
-
-namespace at = argument_types;
-namespace po = boost::program_options;
-
-namespace {
-
-void add_key_option(po::options_description *positional) {
- positional->add_options()
- ("key", "image meta key");
-}
-
-int get_key(const po::variables_map &vm, std::string *key) {
- *key = utils::get_positional_argument(vm, 1);
- if (key->empty()) {
- std::cerr << "rbd: metadata key was not specified" << std::endl;
- return -EINVAL;
- }
- return 0;
-}
-
-const uint32_t MAX_KEYS = 64;
-
-} // anonymous namespace
-
-static int do_metadata_list(librbd::Image& image, Formatter *f)
-{
- int r;
- TextTable tbl;
-
- size_t count = 0;
- std::string last_key;
- bool more_results = true;
- while (more_results) {
- std::map<std::string, bufferlist> pairs;
- r = image.metadata_list(last_key, MAX_KEYS, &pairs);
- if (r < 0) {
- std::cerr << "failed to list metadata of image : " << cpp_strerror(r)
- << std::endl;
- return r;
- }
-
- more_results = (pairs.size() == MAX_KEYS);
- if (!pairs.empty()) {
- if (count == 0) {
- if (f) {
- f->open_object_section("metadatas");
- } else {
- tbl.define_column("Key", TextTable::LEFT, TextTable::LEFT);
- tbl.define_column("Value", TextTable::LEFT, TextTable::LEFT);
- }
- }
-
- last_key = pairs.rbegin()->first;
- count += pairs.size();
-
- for (auto kv : pairs) {
- std::string val(kv.second.c_str(), kv.second.length());
- if (f) {
- f->dump_string(kv.first.c_str(), val.c_str());
- } else {
- tbl << kv.first << val << TextTable::endrow;
- }
- }
- }
- }
-
- if (f == nullptr) {
- bool single = (count == 1);
- std::cout << "There " << (single ? "is" : "are") << " " << count << " "
- << (single ? "metadatum" : "metadata") << " on this image"
- << (count == 0 ? "." : ":") << std::endl;
- }
-
- if (count > 0) {
- if (f) {
- f->close_section();
- f->flush(std::cout);
- } else {
- std::cout << std::endl << tbl;
- }
- }
- return 0;
-}
-
-static int do_metadata_set(librbd::Image& image, const char *key,
- const char *value)
-{
- int r = image.metadata_set(key, value);
- if (r < 0) {
- std::cerr << "failed to set metadata " << key << " of image : "
- << cpp_strerror(r) << std::endl;
- }
- return r;
-}
-
-static int do_metadata_remove(librbd::Image& image, const char *key)
-{
- int r = image.metadata_remove(key);
- if (r == -ENOENT) {
- std::cerr << "rbd: no existing metadata key " << key << " of image : "
- << cpp_strerror(r) << std::endl;
- } else if(r < 0) {
- std::cerr << "failed to remove metadata " << key << " of image : "
- << cpp_strerror(r) << std::endl;
- }
- return r;
-}
-
-static int do_metadata_get(librbd::Image& image, const char *key)
-{
- std::string s;
- int r = image.metadata_get(key, &s);
- if (r < 0) {
- std::cerr << "failed to get metadata " << key << " of image : "
- << cpp_strerror(r) << std::endl;
- return r;
- }
- std::cout << s << std::endl;
- return r;
-}
-
-void get_list_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_list(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;
- }
-
- at::Format::Formatter formatter;
- r = utils::get_formatter(vm, &formatter);
- 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 = do_metadata_list(image, formatter.get());
- if (r < 0) {
- std::cerr << "rbd: listing metadata failed: " << cpp_strerror(r)
- << std::endl;
- return r;
- }
- return 0;
-}
-
-void get_get_arguments(po::options_description *positional,
- po::options_description *options) {
- at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
- add_key_option(positional);
-}
-
-int execute_get(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;
- }
-
- std::string key;
- r = get_key(vm, &key);
- 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 = do_metadata_get(image, key.c_str());
- if (r < 0) {
- std::cerr << "rbd: getting metadata failed: " << cpp_strerror(r)
- << std::endl;
- return r;
- }
- return 0;
-}
-
-void get_set_arguments(po::options_description *positional,
- po::options_description *options) {
- at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
- add_key_option(positional);
- positional->add_options()
- ("value", "image meta value");
-}
-
-int execute_set(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;
- }
-
- std::string key;
- r = get_key(vm, &key);
- if (r < 0) {
- return r;
- }
-
- std::string value = utils::get_positional_argument(vm, 2);
- if (value.empty()) {
- std::cerr << "rbd: metadata value was not specified" << std::endl;
- return -EINVAL;
- }
-
- 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 = do_metadata_set(image, key.c_str(), value.c_str());
- if (r < 0) {
- std::cerr << "rbd: setting metadata failed: " << cpp_strerror(r)
- << std::endl;
- return r;
- }
- return 0;
-}
-
-void get_remove_arguments(po::options_description *positional,
- po::options_description *options) {
- at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
- add_key_option(positional);
-}
-
-int execute_remove(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;
- }
-
- std::string key;
- r = get_key(vm, &key);
- 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 = do_metadata_remove(image, key.c_str());
- if (r < 0) {
- std::cerr << "rbd: removing metadata failed: " << cpp_strerror(r)
- << std::endl;
- return r;
- }
- return 0;
-}
-
-Shell::Action action_list(
- {"image-meta", "list"}, {}, "Image metadata list keys with values.", "",
- &get_list_arguments, &execute_list);
-Shell::Action action_get(
- {"image-meta", "get"}, {},
- "Image metadata get the value associated with the key.", "",
- &get_get_arguments, &execute_get);
-Shell::Action action_set(
- {"image-meta", "set"}, {}, "Image metadata set key with value.", "",
- &get_set_arguments, &execute_set);
-Shell::Action action_remove(
- {"image-meta", "remove"}, {},
- "Image metadata remove the key and value associated.", "",
- &get_remove_arguments, &execute_remove);
-
-} // namespace image_meta
-} // namespace action
-} // namespace rbd
Code Review / stor4nfv.git / blobdiff