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-rw-r--r--src/tools/rbd/action/Remove.cc161
1 files changed, 161 insertions, 0 deletions
diff --git a/src/tools/rbd/action/Remove.cc b/src/tools/rbd/action/Remove.cc
new file mode 100644
index 000000000..c5dcf2323
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+++ b/src/tools/rbd/action/Remove.cc
@@ -0,0 +1,161 @@
+// -*- 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/stringify.h"
+#include <iostream>
+#include <boost/program_options.hpp>
+
+namespace rbd {
+namespace action {
+namespace remove {
+
+namespace {
+
+bool is_auto_delete_snapshot(librbd::Image* image,
+ const librbd::snap_info_t &snap_info) {
+ librbd::snap_namespace_type_t namespace_type;
+ int r = image->snap_get_namespace_type(snap_info.id, &namespace_type);
+ if (r < 0) {
+ return false;
+ }
+
+ switch (namespace_type) {
+ case RBD_SNAP_NAMESPACE_TYPE_TRASH:
+ return true;
+ default:
+ return false;
+ }
+}
+
+} // anonymous namespace
+
+namespace at = argument_types;
+namespace po = boost::program_options;
+
+static int do_delete(librbd::RBD &rbd, librados::IoCtx& io_ctx,
+ const char *imgname, bool no_progress)
+{
+ utils::ProgressContext pc("Removing image", no_progress);
+ int r = rbd.remove_with_progress(io_ctx, imgname, pc);
+ if (r < 0) {
+ pc.fail();
+ return r;
+ }
+ pc.finish();
+ return 0;
+}
+
+void get_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+ at::add_no_progress_option(options);
+}
+
+int execute(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string namespace_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, &namespace_name,
+ &image_name, &snap_name, true, utils::SNAPSHOT_PRESENCE_NONE,
+ utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ r = utils::init(pool_name, namespace_name, &rados, &io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ io_ctx.set_pool_full_try();
+
+ librbd::RBD rbd;
+ r = do_delete(rbd, io_ctx, image_name.c_str(),
+ vm[at::NO_PROGRESS].as<bool>());
+ if (r < 0) {
+ if (r == -ENOTEMPTY) {
+ librbd::Image image;
+ std::vector<librbd::snap_info_t> snaps;
+ int image_r = utils::open_image(io_ctx, image_name, true, &image);
+ if (image_r >= 0) {
+ image_r = image.snap_list(snaps);
+ }
+ if (image_r >= 0) {
+ snaps.erase(std::remove_if(snaps.begin(), snaps.end(),
+ [&image](const librbd::snap_info_t& snap) {
+ return is_auto_delete_snapshot(&image,
+ snap);
+ }),
+ snaps.end());
+ }
+
+ if (!snaps.empty()) {
+ std::cerr << "rbd: image has snapshots - these must be deleted"
+ << " with 'rbd snap purge' before the image can be removed."
+ << std::endl;
+ } else {
+ std::cerr << "rbd: image has snapshots with linked clones - these must "
+ << "be deleted or flattened before the image can be removed."
+ << std::endl;
+ }
+ } else if (r == -EBUSY) {
+ std::cerr << "rbd: error: image still has watchers"
+ << std::endl
+ << "This means the image is still open or the client using "
+ << "it crashed. Try again after closing/unmapping it or "
+ << "waiting 30s for the crashed client to timeout."
+ << std::endl;
+ } else if (r == -EMLINK) {
+ librbd::Image image;
+ int image_r = utils::open_image(io_ctx, image_name, true, &image);
+ librbd::group_info_t group_info;
+ if (image_r == 0) {
+ image_r = image.get_group(&group_info, sizeof(group_info));
+ }
+ if (image_r == 0) {
+ std::string pool_name = "";
+ librados::Rados rados(io_ctx);
+ librados::IoCtx pool_io_ctx;
+ image_r = rados.ioctx_create2(group_info.pool, pool_io_ctx);
+ if (image_r < 0) {
+ pool_name = "<missing group pool " + stringify(group_info.pool) + ">";
+ } else {
+ pool_name = pool_io_ctx.get_pool_name();
+ }
+ std::cerr << "rbd: error: image belongs to a group "
+ << pool_name << "/";
+ if (!io_ctx.get_namespace().empty()) {
+ std::cerr << io_ctx.get_namespace() << "/";
+ }
+ std::cerr << group_info.name;
+ } else
+ std::cerr << "rbd: error: image belongs to a group";
+
+ std::cerr << std::endl
+ << "Remove the image from the group and try again."
+ << std::endl;
+ image.close();
+ } else {
+ std::cerr << "rbd: delete error: " << cpp_strerror(r) << std::endl;
+ }
+ return r;
+ }
+ return 0;
+}
+
+Shell::Action action(
+ {"remove"}, {"rm"}, "Delete an image.", "", &get_arguments, &execute);
+
+} // namespace remove
+} // namespace action
+} // namespace rbd