X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Ftools%2Frbd%2Faction%2FClone.cc;fp=src%2Fceph%2Fsrc%2Ftools%2Frbd%2Faction%2FClone.cc;h=f9b24b65aace5a47277768e97ea47851ae00d749;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git diff --git a/src/ceph/src/tools/rbd/action/Clone.cc b/src/ceph/src/tools/rbd/action/Clone.cc new file mode 100644 index 0000000..f9b24b6 --- /dev/null +++ b/src/ceph/src/tools/rbd/action/Clone.cc @@ -0,0 +1,90 @@ +// -*- 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 +#include + +namespace rbd { +namespace action { +namespace clone { + +namespace at = argument_types; +namespace po = boost::program_options; + +int do_clone(librbd::RBD &rbd, librados::IoCtx &p_ioctx, + const char *p_name, const char *p_snapname, + librados::IoCtx &c_ioctx, const char *c_name, + librbd::ImageOptions& opts) { + return rbd.clone3(p_ioctx, p_name, p_snapname, c_ioctx, c_name, opts); +} + +void get_arguments(po::options_description *positional, + po::options_description *options) { + at::add_snap_spec_options(positional, options, at::ARGUMENT_MODIFIER_SOURCE); + at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_DEST); + at::add_create_image_options(options, false); +} + +int execute(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_SOURCE, &arg_index, &pool_name, &image_name, + &snap_name, utils::SNAPSHOT_PRESENCE_REQUIRED, utils::SPEC_VALIDATION_NONE); + if (r < 0) { + return r; + } + + std::string dst_pool_name; + std::string dst_image_name; + std::string dst_snap_name; + r = utils::get_pool_image_snapshot_names( + vm, at::ARGUMENT_MODIFIER_DEST, &arg_index, &dst_pool_name, &dst_image_name, + &dst_snap_name, utils::SNAPSHOT_PRESENCE_NONE, utils::SPEC_VALIDATION_FULL); + if (r < 0) { + return r; + } + + librbd::ImageOptions opts; + r = utils::get_image_options(vm, false, &opts); + if (r < 0) { + return r; + } + opts.set(RBD_IMAGE_OPTION_FORMAT, static_cast(2)); + + librados::Rados rados; + librados::IoCtx io_ctx; + r = utils::init(pool_name, &rados, &io_ctx); + if (r < 0) { + return r; + } + + librados::IoCtx dst_io_ctx; + r = utils::init_io_ctx(rados, dst_pool_name, &dst_io_ctx); + if (r < 0) { + return r; + } + + librbd::RBD rbd; + r = do_clone(rbd, io_ctx, image_name.c_str(), snap_name.c_str(), dst_io_ctx, + dst_image_name.c_str(), opts); + if (r < 0) { + std::cerr << "rbd: clone error: " << cpp_strerror(r) << std::endl; + return r; + } + return 0; +} + +Shell::Action action( + {"clone"}, {}, "Clone a snapshot into a COW child image.", + at::get_long_features_help(), &get_arguments, &execute); + +} // namespace clone +} // namespace action +} // namespace rbd